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valley/lib/python3.10/importlib/__init__.py

@@ -0,0 +1,176 @@
+"""A pure Python implementation of import."""
+__all__ = ['__import__', 'import_module', 'invalidate_caches', 'reload']
+
+# Bootstrap help #####################################################
+
+# Until bootstrapping is complete, DO NOT import any modules that attempt
+# to import importlib._bootstrap (directly or indirectly). Since this
+# partially initialised package would be present in sys.modules, those
+# modules would get an uninitialised copy of the source version, instead
+# of a fully initialised version (either the frozen one or the one
+# initialised below if the frozen one is not available).
+import _imp  # Just the builtin component, NOT the full Python module
+import sys
+
+try:
+    import _frozen_importlib as _bootstrap
+except ImportError:
+    from . import _bootstrap
+    _bootstrap._setup(sys, _imp)
+else:
+    # importlib._bootstrap is the built-in import, ensure we don't create
+    # a second copy of the module.
+    _bootstrap.__name__ = 'importlib._bootstrap'
+    _bootstrap.__package__ = 'importlib'
+    try:
+        _bootstrap.__file__ = __file__.replace('__init__.py', '_bootstrap.py')
+    except NameError:
+        # __file__ is not guaranteed to be defined, e.g. if this code gets
+        # frozen by a tool like cx_Freeze.
+        pass
+    sys.modules['importlib._bootstrap'] = _bootstrap
+
+try:
+    import _frozen_importlib_external as _bootstrap_external
+except ImportError:
+    from . import _bootstrap_external
+    _bootstrap_external._set_bootstrap_module(_bootstrap)
+    _bootstrap._bootstrap_external = _bootstrap_external
+else:
+    _bootstrap_external.__name__ = 'importlib._bootstrap_external'
+    _bootstrap_external.__package__ = 'importlib'
+    try:
+        _bootstrap_external.__file__ = __file__.replace('__init__.py', '_bootstrap_external.py')
+    except NameError:
+        # __file__ is not guaranteed to be defined, e.g. if this code gets
+        # frozen by a tool like cx_Freeze.
+        pass
+    sys.modules['importlib._bootstrap_external'] = _bootstrap_external
+
+# To simplify imports in test code
+_pack_uint32 = _bootstrap_external._pack_uint32
+_unpack_uint32 = _bootstrap_external._unpack_uint32
+
+# Fully bootstrapped at this point, import whatever you like, circular
+# dependencies and startup overhead minimisation permitting :)
+
+import warnings
+
+
+# Public API #########################################################
+
+from ._bootstrap import __import__
+
+
+def invalidate_caches():
+    """Call the invalidate_caches() method on all meta path finders stored in
+    sys.meta_path (where implemented)."""
+    for finder in sys.meta_path:
+        if hasattr(finder, 'invalidate_caches'):
+            finder.invalidate_caches()
+
+
+def find_loader(name, path=None):
+    """Return the loader for the specified module.
+
+    This is a backward-compatible wrapper around find_spec().
+
+    This function is deprecated in favor of importlib.util.find_spec().
+
+    """
+    warnings.warn('Deprecated since Python 3.4 and slated for removal in '
+                  'Python 3.12; use importlib.util.find_spec() instead',
+                  DeprecationWarning, stacklevel=2)
+    try:
+        loader = sys.modules[name].__loader__
+        if loader is None:
+            raise ValueError('{}.__loader__ is None'.format(name))
+        else:
+            return loader
+    except KeyError:
+        pass
+    except AttributeError:
+        raise ValueError('{}.__loader__ is not set'.format(name)) from None
+
+    spec = _bootstrap._find_spec(name, path)
+    # We won't worry about malformed specs (missing attributes).
+    if spec is None:
+        return None
+    if spec.loader is None:
+        if spec.submodule_search_locations is None:
+            raise ImportError('spec for {} missing loader'.format(name),
+                              name=name)
+        raise ImportError('namespace packages do not have loaders',
+                          name=name)
+    return spec.loader
+
+
+def import_module(name, package=None):
+    """Import a module.
+
+    The 'package' argument is required when performing a relative import. It
+    specifies the package to use as the anchor point from which to resolve the
+    relative import to an absolute import.
+
+    """
+    level = 0
+    if name.startswith('.'):
+        if not package:
+            msg = ("the 'package' argument is required to perform a relative "
+                   "import for {!r}")
+            raise TypeError(msg.format(name))
+        for character in name:
+            if character != '.':
+                break
+            level += 1
+    return _bootstrap._gcd_import(name[level:], package, level)
+
+
+_RELOADING = {}
+
+
+def reload(module):
+    """Reload the module and return it.
+
+    The module must have been successfully imported before.
+
+    """
+    try:
+        name = module.__spec__.name
+    except AttributeError:
+        try:
+            name = module.__name__
+        except AttributeError:
+            raise TypeError("reload() argument must be a module")
+
+    if sys.modules.get(name) is not module:
+        msg = "module {} not in sys.modules"
+        raise ImportError(msg.format(name), name=name)
+    if name in _RELOADING:
+        return _RELOADING[name]
+    _RELOADING[name] = module
+    try:
+        parent_name = name.rpartition('.')[0]
+        if parent_name:
+            try:
+                parent = sys.modules[parent_name]
+            except KeyError:
+                msg = "parent {!r} not in sys.modules"
+                raise ImportError(msg.format(parent_name),
+                                  name=parent_name) from None
+            else:
+                pkgpath = parent.__path__
+        else:
+            pkgpath = None
+        target = module
+        spec = module.__spec__ = _bootstrap._find_spec(name, pkgpath, target)
+        if spec is None:
+            raise ModuleNotFoundError(f"spec not found for the module {name!r}", name=name)
+        _bootstrap._exec(spec, module)
+        # The module may have replaced itself in sys.modules!
+        return sys.modules[name]
+    finally:
+        try:
+            del _RELOADING[name]
+        except KeyError:
+            pass

valley/lib/python3.10/importlib/machinery.py

@@ -0,0 +1,19 @@
+"""The machinery of importlib: finders, loaders, hooks, etc."""
+
+from ._bootstrap import ModuleSpec
+from ._bootstrap import BuiltinImporter
+from ._bootstrap import FrozenImporter
+from ._bootstrap_external import (SOURCE_SUFFIXES, DEBUG_BYTECODE_SUFFIXES,
+                     OPTIMIZED_BYTECODE_SUFFIXES, BYTECODE_SUFFIXES,
+                     EXTENSION_SUFFIXES)
+from ._bootstrap_external import WindowsRegistryFinder
+from ._bootstrap_external import PathFinder
+from ._bootstrap_external import FileFinder
+from ._bootstrap_external import SourceFileLoader
+from ._bootstrap_external import SourcelessFileLoader
+from ._bootstrap_external import ExtensionFileLoader
+
+
+def all_suffixes():
+    """Returns a list of all recognized module suffixes for this process"""
+    return SOURCE_SUFFIXES + BYTECODE_SUFFIXES + EXTENSION_SUFFIXES

valley/lib/python3.10/importlib/metadata/_adapters.py

@@ -0,0 +1,68 @@
+import re
+import textwrap
+import email.message
+
+from ._text import FoldedCase
+
+
+class Message(email.message.Message):
+    multiple_use_keys = set(
+        map(
+            FoldedCase,
+            [
+                'Classifier',
+                'Obsoletes-Dist',
+                'Platform',
+                'Project-URL',
+                'Provides-Dist',
+                'Provides-Extra',
+                'Requires-Dist',
+                'Requires-External',
+                'Supported-Platform',
+                'Dynamic',
+            ],
+        )
+    )
+    """
+    Keys that may be indicated multiple times per PEP 566.
+    """
+
+    def __new__(cls, orig: email.message.Message):
+        res = super().__new__(cls)
+        vars(res).update(vars(orig))
+        return res
+
+    def __init__(self, *args, **kwargs):
+        self._headers = self._repair_headers()
+
+    # suppress spurious error from mypy
+    def __iter__(self):
+        return super().__iter__()
+
+    def _repair_headers(self):
+        def redent(value):
+            "Correct for RFC822 indentation"
+            if not value or '\n' not in value:
+                return value
+            return textwrap.dedent(' ' * 8 + value)
+
+        headers = [(key, redent(value)) for key, value in vars(self)['_headers']]
+        if self._payload:
+            headers.append(('Description', self.get_payload()))
+        return headers
+
+    @property
+    def json(self):
+        """
+        Convert PackageMetadata to a JSON-compatible format
+        per PEP 0566.
+        """
+
+        def transform(key):
+            value = self.get_all(key) if key in self.multiple_use_keys else self[key]
+            if key == 'Keywords':
+                value = re.split(r'\s+', value)
+            tk = key.lower().replace('-', '_')
+            return tk, value
+
+        return dict(map(transform, map(FoldedCase, self)))

valley/lib/python3.10/importlib/readers.py

@@ -0,0 +1,123 @@
+import collections
+import zipfile
+import pathlib
+from . import abc
+
+
+def remove_duplicates(items):
+    return iter(collections.OrderedDict.fromkeys(items))
+
+
+class FileReader(abc.TraversableResources):
+    def __init__(self, loader):
+        self.path = pathlib.Path(loader.path).parent
+
+    def resource_path(self, resource):
+        """
+        Return the file system path to prevent
+        `resources.path()` from creating a temporary
+        copy.
+        """
+        return str(self.path.joinpath(resource))
+
+    def files(self):
+        return self.path
+
+
+class ZipReader(abc.TraversableResources):
+    def __init__(self, loader, module):
+        _, _, name = module.rpartition('.')
+        self.prefix = loader.prefix.replace('\\', '/') + name + '/'
+        self.archive = loader.archive
+
+    def open_resource(self, resource):
+        try:
+            return super().open_resource(resource)
+        except KeyError as exc:
+            raise FileNotFoundError(exc.args[0])
+
+    def is_resource(self, path):
+        # workaround for `zipfile.Path.is_file` returning true
+        # for non-existent paths.
+        target = self.files().joinpath(path)
+        return target.is_file() and target.exists()
+
+    def files(self):
+        return zipfile.Path(self.archive, self.prefix)
+
+
+class MultiplexedPath(abc.Traversable):
+    """
+    Given a series of Traversable objects, implement a merged
+    version of the interface across all objects. Useful for
+    namespace packages which may be multihomed at a single
+    name.
+    """
+
+    def __init__(self, *paths):
+        self._paths = list(map(pathlib.Path, remove_duplicates(paths)))
+        if not self._paths:
+            message = 'MultiplexedPath must contain at least one path'
+            raise FileNotFoundError(message)
+        if not all(path.is_dir() for path in self._paths):
+            raise NotADirectoryError('MultiplexedPath only supports directories')
+
+    def iterdir(self):
+        visited = []
+        for path in self._paths:
+            for file in path.iterdir():
+                if file.name in visited:
+                    continue
+                visited.append(file.name)
+                yield file
+
+    def read_bytes(self):
+        raise FileNotFoundError(f'{self} is not a file')
+
+    def read_text(self, *args, **kwargs):
+        raise FileNotFoundError(f'{self} is not a file')
+
+    def is_dir(self):
+        return True
+
+    def is_file(self):
+        return False
+
+    def joinpath(self, child):
+        # first try to find child in current paths
+        for file in self.iterdir():
+            if file.name == child:
+                return file
+        # if it does not exist, construct it with the first path
+        return self._paths[0] / child
+
+    __truediv__ = joinpath
+
+    def open(self, *args, **kwargs):
+        raise FileNotFoundError(f'{self} is not a file')
+
+    @property
+    def name(self):
+        return self._paths[0].name
+
+    def __repr__(self):
+        paths = ', '.join(f"'{path}'" for path in self._paths)
+        return f'MultiplexedPath({paths})'
+
+
+class NamespaceReader(abc.TraversableResources):
+    def __init__(self, namespace_path):
+        if 'NamespacePath' not in str(namespace_path):
+            raise ValueError('Invalid path')
+        self.path = MultiplexedPath(*list(namespace_path))
+
+    def resource_path(self, resource):
+        """
+        Return the file system path to prevent
+        `resources.path()` from creating a temporary
+        copy.
+        """
+        return str(self.path.joinpath(resource))
+
+    def files(self):
+        return self.path

valley/lib/python3.10/logging/__init__.py

@@ -0,0 +1,2261 @@
+# Copyright 2001-2019 by Vinay Sajip. All Rights Reserved.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose and without fee is hereby granted,
+# provided that the above copyright notice appear in all copies and that
+# both that copyright notice and this permission notice appear in
+# supporting documentation, and that the name of Vinay Sajip
+# not be used in advertising or publicity pertaining to distribution
+# of the software without specific, written prior permission.
+# VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+# VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+"""
+Logging package for Python. Based on PEP 282 and comments thereto in
+comp.lang.python.
+
+Copyright (C) 2001-2019 Vinay Sajip. All Rights Reserved.
+
+To use, simply 'import logging' and log away!
+"""
+
+import sys, os, time, io, re, traceback, warnings, weakref, collections.abc
+
+from string import Template
+from string import Formatter as StrFormatter
+
+
+__all__ = ['BASIC_FORMAT', 'BufferingFormatter', 'CRITICAL', 'DEBUG', 'ERROR',
+           'FATAL', 'FileHandler', 'Filter', 'Formatter', 'Handler', 'INFO',
+           'LogRecord', 'Logger', 'LoggerAdapter', 'NOTSET', 'NullHandler',
+           'StreamHandler', 'WARN', 'WARNING', 'addLevelName', 'basicConfig',
+           'captureWarnings', 'critical', 'debug', 'disable', 'error',
+           'exception', 'fatal', 'getLevelName', 'getLogger', 'getLoggerClass',
+           'info', 'log', 'makeLogRecord', 'setLoggerClass', 'shutdown',
+           'warn', 'warning', 'getLogRecordFactory', 'setLogRecordFactory',
+           'lastResort', 'raiseExceptions']
+
+import threading
+
+__author__  = "Vinay Sajip <vinay_sajip@red-dove.com>"
+__status__  = "production"
+# The following module attributes are no longer updated.
+__version__ = "0.5.1.2"
+__date__    = "07 February 2010"
+
+#---------------------------------------------------------------------------
+#   Miscellaneous module data
+#---------------------------------------------------------------------------
+
+#
+#_startTime is used as the base when calculating the relative time of events
+#
+_startTime = time.time()
+
+#
+#raiseExceptions is used to see if exceptions during handling should be
+#propagated
+#
+raiseExceptions = True
+
+#
+# If you don't want threading information in the log, set this to zero
+#
+logThreads = True
+
+#
+# If you don't want multiprocessing information in the log, set this to zero
+#
+logMultiprocessing = True
+
+#
+# If you don't want process information in the log, set this to zero
+#
+logProcesses = True
+
+#---------------------------------------------------------------------------
+#   Level related stuff
+#---------------------------------------------------------------------------
+#
+# Default levels and level names, these can be replaced with any positive set
+# of values having corresponding names. There is a pseudo-level, NOTSET, which
+# is only really there as a lower limit for user-defined levels. Handlers and
+# loggers are initialized with NOTSET so that they will log all messages, even
+# at user-defined levels.
+#
+
+CRITICAL = 50
+FATAL = CRITICAL
+ERROR = 40
+WARNING = 30
+WARN = WARNING
+INFO = 20
+DEBUG = 10
+NOTSET = 0
+
+_levelToName = {
+    CRITICAL: 'CRITICAL',
+    ERROR: 'ERROR',
+    WARNING: 'WARNING',
+    INFO: 'INFO',
+    DEBUG: 'DEBUG',
+    NOTSET: 'NOTSET',
+}
+_nameToLevel = {
+    'CRITICAL': CRITICAL,
+    'FATAL': FATAL,
+    'ERROR': ERROR,
+    'WARN': WARNING,
+    'WARNING': WARNING,
+    'INFO': INFO,
+    'DEBUG': DEBUG,
+    'NOTSET': NOTSET,
+}
+
+def getLevelName(level):
+    """
+    Return the textual or numeric representation of logging level 'level'.
+
+    If the level is one of the predefined levels (CRITICAL, ERROR, WARNING,
+    INFO, DEBUG) then you get the corresponding string. If you have
+    associated levels with names using addLevelName then the name you have
+    associated with 'level' is returned.
+
+    If a numeric value corresponding to one of the defined levels is passed
+    in, the corresponding string representation is returned.
+
+    If a string representation of the level is passed in, the corresponding
+    numeric value is returned.
+
+    If no matching numeric or string value is passed in, the string
+    'Level %s' % level is returned.
+    """
+    # See Issues #22386, #27937 and #29220 for why it's this way
+    result = _levelToName.get(level)
+    if result is not None:
+        return result
+    result = _nameToLevel.get(level)
+    if result is not None:
+        return result
+    return "Level %s" % level
+
+def addLevelName(level, levelName):
+    """
+    Associate 'levelName' with 'level'.
+
+    This is used when converting levels to text during message formatting.
+    """
+    _acquireLock()
+    try:    #unlikely to cause an exception, but you never know...
+        _levelToName[level] = levelName
+        _nameToLevel[levelName] = level
+    finally:
+        _releaseLock()
+
+if hasattr(sys, '_getframe'):
+    currentframe = lambda: sys._getframe(3)
+else: #pragma: no cover
+    def currentframe():
+        """Return the frame object for the caller's stack frame."""
+        try:
+            raise Exception
+        except Exception:
+            return sys.exc_info()[2].tb_frame.f_back
+
+#
+# _srcfile is used when walking the stack to check when we've got the first
+# caller stack frame, by skipping frames whose filename is that of this
+# module's source. It therefore should contain the filename of this module's
+# source file.
+#
+# Ordinarily we would use __file__ for this, but frozen modules don't always
+# have __file__ set, for some reason (see Issue #21736). Thus, we get the
+# filename from a handy code object from a function defined in this module.
+# (There's no particular reason for picking addLevelName.)
+#
+
+_srcfile = os.path.normcase(addLevelName.__code__.co_filename)
+
+# _srcfile is only used in conjunction with sys._getframe().
+# To provide compatibility with older versions of Python, set _srcfile
+# to None if _getframe() is not available; this value will prevent
+# findCaller() from being called. You can also do this if you want to avoid
+# the overhead of fetching caller information, even when _getframe() is
+# available.
+#if not hasattr(sys, '_getframe'):
+#    _srcfile = None
+
+
+def _checkLevel(level):
+    if isinstance(level, int):
+        rv = level
+    elif str(level) == level:
+        if level not in _nameToLevel:
+            raise ValueError("Unknown level: %r" % level)
+        rv = _nameToLevel[level]
+    else:
+        raise TypeError("Level not an integer or a valid string: %r"
+                        % (level,))
+    return rv
+
+#---------------------------------------------------------------------------
+#   Thread-related stuff
+#---------------------------------------------------------------------------
+
+#
+#_lock is used to serialize access to shared data structures in this module.
+#This needs to be an RLock because fileConfig() creates and configures
+#Handlers, and so might arbitrary user threads. Since Handler code updates the
+#shared dictionary _handlers, it needs to acquire the lock. But if configuring,
+#the lock would already have been acquired - so we need an RLock.
+#The same argument applies to Loggers and Manager.loggerDict.
+#
+_lock = threading.RLock()
+
+def _acquireLock():
+    """
+    Acquire the module-level lock for serializing access to shared data.
+
+    This should be released with _releaseLock().
+    """
+    if _lock:
+        _lock.acquire()
+
+def _releaseLock():
+    """
+    Release the module-level lock acquired by calling _acquireLock().
+    """
+    if _lock:
+        _lock.release()
+
+
+# Prevent a held logging lock from blocking a child from logging.
+
+if not hasattr(os, 'register_at_fork'):  # Windows and friends.
+    def _register_at_fork_reinit_lock(instance):
+        pass  # no-op when os.register_at_fork does not exist.
+else:
+    # A collection of instances with a _at_fork_reinit method (logging.Handler)
+    # to be called in the child after forking.  The weakref avoids us keeping
+    # discarded Handler instances alive.
+    _at_fork_reinit_lock_weakset = weakref.WeakSet()
+
+    def _register_at_fork_reinit_lock(instance):
+        _acquireLock()
+        try:
+            _at_fork_reinit_lock_weakset.add(instance)
+        finally:
+            _releaseLock()
+
+    def _after_at_fork_child_reinit_locks():
+        for handler in _at_fork_reinit_lock_weakset:
+            handler._at_fork_reinit()
+
+        # _acquireLock() was called in the parent before forking.
+        # The lock is reinitialized to unlocked state.
+        _lock._at_fork_reinit()
+
+    os.register_at_fork(before=_acquireLock,
+                        after_in_child=_after_at_fork_child_reinit_locks,
+                        after_in_parent=_releaseLock)
+
+
+#---------------------------------------------------------------------------
+#   The logging record
+#---------------------------------------------------------------------------
+
+class LogRecord(object):
+    """
+    A LogRecord instance represents an event being logged.
+
+    LogRecord instances are created every time something is logged. They
+    contain all the information pertinent to the event being logged. The
+    main information passed in is in msg and args, which are combined
+    using str(msg) % args to create the message field of the record. The
+    record also includes information such as when the record was created,
+    the source line where the logging call was made, and any exception
+    information to be logged.
+    """
+    def __init__(self, name, level, pathname, lineno,
+                 msg, args, exc_info, func=None, sinfo=None, **kwargs):
+        """
+        Initialize a logging record with interesting information.
+        """
+        ct = time.time()
+        self.name = name
+        self.msg = msg
+        #
+        # The following statement allows passing of a dictionary as a sole
+        # argument, so that you can do something like
+        #  logging.debug("a %(a)d b %(b)s", {'a':1, 'b':2})
+        # Suggested by Stefan Behnel.
+        # Note that without the test for args[0], we get a problem because
+        # during formatting, we test to see if the arg is present using
+        # 'if self.args:'. If the event being logged is e.g. 'Value is %d'
+        # and if the passed arg fails 'if self.args:' then no formatting
+        # is done. For example, logger.warning('Value is %d', 0) would log
+        # 'Value is %d' instead of 'Value is 0'.
+        # For the use case of passing a dictionary, this should not be a
+        # problem.
+        # Issue #21172: a request was made to relax the isinstance check
+        # to hasattr(args[0], '__getitem__'). However, the docs on string
+        # formatting still seem to suggest a mapping object is required.
+        # Thus, while not removing the isinstance check, it does now look
+        # for collections.abc.Mapping rather than, as before, dict.
+        if (args and len(args) == 1 and isinstance(args[0], collections.abc.Mapping)
+            and args[0]):
+            args = args[0]
+        self.args = args
+        self.levelname = getLevelName(level)
+        self.levelno = level
+        self.pathname = pathname
+        try:
+            self.filename = os.path.basename(pathname)
+            self.module = os.path.splitext(self.filename)[0]
+        except (TypeError, ValueError, AttributeError):
+            self.filename = pathname
+            self.module = "Unknown module"
+        self.exc_info = exc_info
+        self.exc_text = None      # used to cache the traceback text
+        self.stack_info = sinfo
+        self.lineno = lineno
+        self.funcName = func
+        self.created = ct
+        self.msecs = int((ct - int(ct)) * 1000) + 0.0  # see gh-89047
+        self.relativeCreated = (self.created - _startTime) * 1000
+        if logThreads:
+            self.thread = threading.get_ident()
+            self.threadName = threading.current_thread().name
+        else: # pragma: no cover
+            self.thread = None
+            self.threadName = None
+        if not logMultiprocessing: # pragma: no cover
+            self.processName = None
+        else:
+            self.processName = 'MainProcess'
+            mp = sys.modules.get('multiprocessing')
+            if mp is not None:
+                # Errors may occur if multiprocessing has not finished loading
+                # yet - e.g. if a custom import hook causes third-party code
+                # to run when multiprocessing calls import. See issue 8200
+                # for an example
+                try:
+                    self.processName = mp.current_process().name
+                except Exception: #pragma: no cover
+                    pass
+        if logProcesses and hasattr(os, 'getpid'):
+            self.process = os.getpid()
+        else:
+            self.process = None
+
+    def __repr__(self):
+        return '<LogRecord: %s, %s, %s, %s, "%s">'%(self.name, self.levelno,
+            self.pathname, self.lineno, self.msg)
+
+    def getMessage(self):
+        """
+        Return the message for this LogRecord.
+
+        Return the message for this LogRecord after merging any user-supplied
+        arguments with the message.
+        """
+        msg = str(self.msg)
+        if self.args:
+            msg = msg % self.args
+        return msg
+
+#
+#   Determine which class to use when instantiating log records.
+#
+_logRecordFactory = LogRecord
+
+def setLogRecordFactory(factory):
+    """
+    Set the factory to be used when instantiating a log record.
+
+    :param factory: A callable which will be called to instantiate
+    a log record.
+    """
+    global _logRecordFactory
+    _logRecordFactory = factory
+
+def getLogRecordFactory():
+    """
+    Return the factory to be used when instantiating a log record.
+    """
+
+    return _logRecordFactory
+
+def makeLogRecord(dict):
+    """
+    Make a LogRecord whose attributes are defined by the specified dictionary,
+    This function is useful for converting a logging event received over
+    a socket connection (which is sent as a dictionary) into a LogRecord
+    instance.
+    """
+    rv = _logRecordFactory(None, None, "", 0, "", (), None, None)
+    rv.__dict__.update(dict)
+    return rv
+
+
+#---------------------------------------------------------------------------
+#   Formatter classes and functions
+#---------------------------------------------------------------------------
+_str_formatter = StrFormatter()
+del StrFormatter
+
+
+class PercentStyle(object):
+
+    default_format = '%(message)s'
+    asctime_format = '%(asctime)s'
+    asctime_search = '%(asctime)'
+    validation_pattern = re.compile(r'%\(\w+\)[#0+ -]*(\*|\d+)?(\.(\*|\d+))?[diouxefgcrsa%]', re.I)
+
+    def __init__(self, fmt, *, defaults=None):
+        self._fmt = fmt or self.default_format
+        self._defaults = defaults
+
+    def usesTime(self):
+        return self._fmt.find(self.asctime_search) >= 0
+
+    def validate(self):
+        """Validate the input format, ensure it matches the correct style"""
+        if not self.validation_pattern.search(self._fmt):
+            raise ValueError("Invalid format '%s' for '%s' style" % (self._fmt, self.default_format[0]))
+
+    def _format(self, record):
+        if defaults := self._defaults:
+            values = defaults | record.__dict__
+        else:
+            values = record.__dict__
+        return self._fmt % values
+
+    def format(self, record):
+        try:
+            return self._format(record)
+        except KeyError as e:
+            raise ValueError('Formatting field not found in record: %s' % e)
+
+
+class StrFormatStyle(PercentStyle):
+    default_format = '{message}'
+    asctime_format = '{asctime}'
+    asctime_search = '{asctime'
+
+    fmt_spec = re.compile(r'^(.?[<>=^])?[+ -]?#?0?(\d+|{\w+})?[,_]?(\.(\d+|{\w+}))?[bcdefgnosx%]?$', re.I)
+    field_spec = re.compile(r'^(\d+|\w+)(\.\w+|\[[^]]+\])*$')
+
+    def _format(self, record):
+        if defaults := self._defaults:
+            values = defaults | record.__dict__
+        else:
+            values = record.__dict__
+        return self._fmt.format(**values)
+
+    def validate(self):
+        """Validate the input format, ensure it is the correct string formatting style"""
+        fields = set()
+        try:
+            for _, fieldname, spec, conversion in _str_formatter.parse(self._fmt):
+                if fieldname:
+                    if not self.field_spec.match(fieldname):
+                        raise ValueError('invalid field name/expression: %r' % fieldname)
+                    fields.add(fieldname)
+                if conversion and conversion not in 'rsa':
+                    raise ValueError('invalid conversion: %r' % conversion)
+                if spec and not self.fmt_spec.match(spec):
+                    raise ValueError('bad specifier: %r' % spec)
+        except ValueError as e:
+            raise ValueError('invalid format: %s' % e)
+        if not fields:
+            raise ValueError('invalid format: no fields')
+
+
+class StringTemplateStyle(PercentStyle):
+    default_format = '${message}'
+    asctime_format = '${asctime}'
+    asctime_search = '${asctime}'
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self._tpl = Template(self._fmt)
+
+    def usesTime(self):
+        fmt = self._fmt
+        return fmt.find('$asctime') >= 0 or fmt.find(self.asctime_search) >= 0
+
+    def validate(self):
+        pattern = Template.pattern
+        fields = set()
+        for m in pattern.finditer(self._fmt):
+            d = m.groupdict()
+            if d['named']:
+                fields.add(d['named'])
+            elif d['braced']:
+                fields.add(d['braced'])
+            elif m.group(0) == '$':
+                raise ValueError('invalid format: bare \'$\' not allowed')
+        if not fields:
+            raise ValueError('invalid format: no fields')
+
+    def _format(self, record):
+        if defaults := self._defaults:
+            values = defaults | record.__dict__
+        else:
+            values = record.__dict__
+        return self._tpl.substitute(**values)
+
+
+BASIC_FORMAT = "%(levelname)s:%(name)s:%(message)s"
+
+_STYLES = {
+    '%': (PercentStyle, BASIC_FORMAT),
+    '{': (StrFormatStyle, '{levelname}:{name}:{message}'),
+    '$': (StringTemplateStyle, '${levelname}:${name}:${message}'),
+}
+
+class Formatter(object):
+    """
+    Formatter instances are used to convert a LogRecord to text.
+
+    Formatters need to know how a LogRecord is constructed. They are
+    responsible for converting a LogRecord to (usually) a string which can
+    be interpreted by either a human or an external system. The base Formatter
+    allows a formatting string to be specified. If none is supplied, the
+    style-dependent default value, "%(message)s", "{message}", or
+    "${message}", is used.
+
+    The Formatter can be initialized with a format string which makes use of
+    knowledge of the LogRecord attributes - e.g. the default value mentioned
+    above makes use of the fact that the user's message and arguments are pre-
+    formatted into a LogRecord's message attribute. Currently, the useful
+    attributes in a LogRecord are described by:
+
+    %(name)s            Name of the logger (logging channel)
+    %(levelno)s         Numeric logging level for the message (DEBUG, INFO,
+                        WARNING, ERROR, CRITICAL)
+    %(levelname)s       Text logging level for the message ("DEBUG", "INFO",
+                        "WARNING", "ERROR", "CRITICAL")
+    %(pathname)s        Full pathname of the source file where the logging
+                        call was issued (if available)
+    %(filename)s        Filename portion of pathname
+    %(module)s          Module (name portion of filename)
+    %(lineno)d          Source line number where the logging call was issued
+                        (if available)
+    %(funcName)s        Function name
+    %(created)f         Time when the LogRecord was created (time.time()
+                        return value)
+    %(asctime)s         Textual time when the LogRecord was created
+    %(msecs)d           Millisecond portion of the creation time
+    %(relativeCreated)d Time in milliseconds when the LogRecord was created,
+                        relative to the time the logging module was loaded
+                        (typically at application startup time)
+    %(thread)d          Thread ID (if available)
+    %(threadName)s      Thread name (if available)
+    %(process)d         Process ID (if available)
+    %(message)s         The result of record.getMessage(), computed just as
+                        the record is emitted
+    """
+
+    converter = time.localtime
+
+    def __init__(self, fmt=None, datefmt=None, style='%', validate=True, *,
+                 defaults=None):
+        """
+        Initialize the formatter with specified format strings.
+
+        Initialize the formatter either with the specified format string, or a
+        default as described above. Allow for specialized date formatting with
+        the optional datefmt argument. If datefmt is omitted, you get an
+        ISO8601-like (or RFC 3339-like) format.
+
+        Use a style parameter of '%', '{' or '$' to specify that you want to
+        use one of %-formatting, :meth:`str.format` (``{}``) formatting or
+        :class:`string.Template` formatting in your format string.
+
+        .. versionchanged:: 3.2
+           Added the ``style`` parameter.
+        """
+        if style not in _STYLES:
+            raise ValueError('Style must be one of: %s' % ','.join(
+                             _STYLES.keys()))
+        self._style = _STYLES[style][0](fmt, defaults=defaults)
+        if validate:
+            self._style.validate()
+
+        self._fmt = self._style._fmt
+        self.datefmt = datefmt
+
+    default_time_format = '%Y-%m-%d %H:%M:%S'
+    default_msec_format = '%s,%03d'
+
+    def formatTime(self, record, datefmt=None):
+        """
+        Return the creation time of the specified LogRecord as formatted text.
+
+        This method should be called from format() by a formatter which
+        wants to make use of a formatted time. This method can be overridden
+        in formatters to provide for any specific requirement, but the
+        basic behaviour is as follows: if datefmt (a string) is specified,
+        it is used with time.strftime() to format the creation time of the
+        record. Otherwise, an ISO8601-like (or RFC 3339-like) format is used.
+        The resulting string is returned. This function uses a user-configurable
+        function to convert the creation time to a tuple. By default,
+        time.localtime() is used; to change this for a particular formatter
+        instance, set the 'converter' attribute to a function with the same
+        signature as time.localtime() or time.gmtime(). To change it for all
+        formatters, for example if you want all logging times to be shown in GMT,
+        set the 'converter' attribute in the Formatter class.
+        """
+        ct = self.converter(record.created)
+        if datefmt:
+            s = time.strftime(datefmt, ct)
+        else:
+            s = time.strftime(self.default_time_format, ct)
+            if self.default_msec_format:
+                s = self.default_msec_format % (s, record.msecs)
+        return s
+
+    def formatException(self, ei):
+        """
+        Format and return the specified exception information as a string.
+
+        This default implementation just uses
+        traceback.print_exception()
+        """
+        sio = io.StringIO()
+        tb = ei[2]
+        # See issues #9427, #1553375. Commented out for now.
+        #if getattr(self, 'fullstack', False):
+        #    traceback.print_stack(tb.tb_frame.f_back, file=sio)
+        traceback.print_exception(ei[0], ei[1], tb, None, sio)
+        s = sio.getvalue()
+        sio.close()
+        if s[-1:] == "\n":
+            s = s[:-1]
+        return s
+
+    def usesTime(self):
+        """
+        Check if the format uses the creation time of the record.
+        """
+        return self._style.usesTime()
+
+    def formatMessage(self, record):
+        return self._style.format(record)
+
+    def formatStack(self, stack_info):
+        """
+        This method is provided as an extension point for specialized
+        formatting of stack information.
+
+        The input data is a string as returned from a call to
+        :func:`traceback.print_stack`, but with the last trailing newline
+        removed.
+
+        The base implementation just returns the value passed in.
+        """
+        return stack_info
+
+    def format(self, record):
+        """
+        Format the specified record as text.
+
+        The record's attribute dictionary is used as the operand to a
+        string formatting operation which yields the returned string.
+        Before formatting the dictionary, a couple of preparatory steps
+        are carried out. The message attribute of the record is computed
+        using LogRecord.getMessage(). If the formatting string uses the
+        time (as determined by a call to usesTime(), formatTime() is
+        called to format the event time. If there is exception information,
+        it is formatted using formatException() and appended to the message.
+        """
+        record.message = record.getMessage()
+        if self.usesTime():
+            record.asctime = self.formatTime(record, self.datefmt)
+        s = self.formatMessage(record)
+        if record.exc_info:
+            # Cache the traceback text to avoid converting it multiple times
+            # (it's constant anyway)
+            if not record.exc_text:
+                record.exc_text = self.formatException(record.exc_info)
+        if record.exc_text:
+            if s[-1:] != "\n":
+                s = s + "\n"
+            s = s + record.exc_text
+        if record.stack_info:
+            if s[-1:] != "\n":
+                s = s + "\n"
+            s = s + self.formatStack(record.stack_info)
+        return s
+
+#
+#   The default formatter to use when no other is specified
+#
+_defaultFormatter = Formatter()
+
+class BufferingFormatter(object):
+    """
+    A formatter suitable for formatting a number of records.
+    """
+    def __init__(self, linefmt=None):
+        """
+        Optionally specify a formatter which will be used to format each
+        individual record.
+        """
+        if linefmt:
+            self.linefmt = linefmt
+        else:
+            self.linefmt = _defaultFormatter
+
+    def formatHeader(self, records):
+        """
+        Return the header string for the specified records.
+        """
+        return ""
+
+    def formatFooter(self, records):
+        """
+        Return the footer string for the specified records.
+        """
+        return ""
+
+    def format(self, records):
+        """
+        Format the specified records and return the result as a string.
+        """
+        rv = ""
+        if len(records) > 0:
+            rv = rv + self.formatHeader(records)
+            for record in records:
+                rv = rv + self.linefmt.format(record)
+            rv = rv + self.formatFooter(records)
+        return rv
+
+#---------------------------------------------------------------------------
+#   Filter classes and functions
+#---------------------------------------------------------------------------
+
+class Filter(object):
+    """
+    Filter instances are used to perform arbitrary filtering of LogRecords.
+
+    Loggers and Handlers can optionally use Filter instances to filter
+    records as desired. The base filter class only allows events which are
+    below a certain point in the logger hierarchy. For example, a filter
+    initialized with "A.B" will allow events logged by loggers "A.B",
+    "A.B.C", "A.B.C.D", "A.B.D" etc. but not "A.BB", "B.A.B" etc. If
+    initialized with the empty string, all events are passed.
+    """
+    def __init__(self, name=''):
+        """
+        Initialize a filter.
+
+        Initialize with the name of the logger which, together with its
+        children, will have its events allowed through the filter. If no
+        name is specified, allow every event.
+        """
+        self.name = name
+        self.nlen = len(name)
+
+    def filter(self, record):
+        """
+        Determine if the specified record is to be logged.
+
+        Returns True if the record should be logged, or False otherwise.
+        If deemed appropriate, the record may be modified in-place.
+        """
+        if self.nlen == 0:
+            return True
+        elif self.name == record.name:
+            return True
+        elif record.name.find(self.name, 0, self.nlen) != 0:
+            return False
+        return (record.name[self.nlen] == ".")
+
+class Filterer(object):
+    """
+    A base class for loggers and handlers which allows them to share
+    common code.
+    """
+    def __init__(self):
+        """
+        Initialize the list of filters to be an empty list.
+        """
+        self.filters = []
+
+    def addFilter(self, filter):
+        """
+        Add the specified filter to this handler.
+        """
+        if not (filter in self.filters):
+            self.filters.append(filter)
+
+    def removeFilter(self, filter):
+        """
+        Remove the specified filter from this handler.
+        """
+        if filter in self.filters:
+            self.filters.remove(filter)
+
+    def filter(self, record):
+        """
+        Determine if a record is loggable by consulting all the filters.
+
+        The default is to allow the record to be logged; any filter can veto
+        this and the record is then dropped. Returns a zero value if a record
+        is to be dropped, else non-zero.
+
+        .. versionchanged:: 3.2
+
+           Allow filters to be just callables.
+        """
+        rv = True
+        for f in self.filters:
+            if hasattr(f, 'filter'):
+                result = f.filter(record)
+            else:
+                result = f(record) # assume callable - will raise if not
+            if not result:
+                rv = False
+                break
+        return rv
+
+#---------------------------------------------------------------------------
+#   Handler classes and functions
+#---------------------------------------------------------------------------
+
+_handlers = weakref.WeakValueDictionary()  #map of handler names to handlers
+_handlerList = [] # added to allow handlers to be removed in reverse of order initialized
+
+def _removeHandlerRef(wr):
+    """
+    Remove a handler reference from the internal cleanup list.
+    """
+    # This function can be called during module teardown, when globals are
+    # set to None. It can also be called from another thread. So we need to
+    # pre-emptively grab the necessary globals and check if they're None,
+    # to prevent race conditions and failures during interpreter shutdown.
+    acquire, release, handlers = _acquireLock, _releaseLock, _handlerList
+    if acquire and release and handlers:
+        acquire()
+        try:
+            if wr in handlers:
+                handlers.remove(wr)
+        finally:
+            release()
+
+def _addHandlerRef(handler):
+    """
+    Add a handler to the internal cleanup list using a weak reference.
+    """
+    _acquireLock()
+    try:
+        _handlerList.append(weakref.ref(handler, _removeHandlerRef))
+    finally:
+        _releaseLock()
+
+class Handler(Filterer):
+    """
+    Handler instances dispatch logging events to specific destinations.
+
+    The base handler class. Acts as a placeholder which defines the Handler
+    interface. Handlers can optionally use Formatter instances to format
+    records as desired. By default, no formatter is specified; in this case,
+    the 'raw' message as determined by record.message is logged.
+    """
+    def __init__(self, level=NOTSET):
+        """
+        Initializes the instance - basically setting the formatter to None
+        and the filter list to empty.
+        """
+        Filterer.__init__(self)
+        self._name = None
+        self.level = _checkLevel(level)
+        self.formatter = None
+        self._closed = False
+        # Add the handler to the global _handlerList (for cleanup on shutdown)
+        _addHandlerRef(self)
+        self.createLock()
+
+    def get_name(self):
+        return self._name
+
+    def set_name(self, name):
+        _acquireLock()
+        try:
+            if self._name in _handlers:
+                del _handlers[self._name]
+            self._name = name
+            if name:
+                _handlers[name] = self
+        finally:
+            _releaseLock()
+
+    name = property(get_name, set_name)
+
+    def createLock(self):
+        """
+        Acquire a thread lock for serializing access to the underlying I/O.
+        """
+        self.lock = threading.RLock()
+        _register_at_fork_reinit_lock(self)
+
+    def _at_fork_reinit(self):
+        self.lock._at_fork_reinit()
+
+    def acquire(self):
+        """
+        Acquire the I/O thread lock.
+        """
+        if self.lock:
+            self.lock.acquire()
+
+    def release(self):
+        """
+        Release the I/O thread lock.
+        """
+        if self.lock:
+            self.lock.release()
+
+    def setLevel(self, level):
+        """
+        Set the logging level of this handler.  level must be an int or a str.
+        """
+        self.level = _checkLevel(level)
+
+    def format(self, record):
+        """
+        Format the specified record.
+
+        If a formatter is set, use it. Otherwise, use the default formatter
+        for the module.
+        """
+        if self.formatter:
+            fmt = self.formatter
+        else:
+            fmt = _defaultFormatter
+        return fmt.format(record)
+
+    def emit(self, record):
+        """
+        Do whatever it takes to actually log the specified logging record.
+
+        This version is intended to be implemented by subclasses and so
+        raises a NotImplementedError.
+        """
+        raise NotImplementedError('emit must be implemented '
+                                  'by Handler subclasses')
+
+    def handle(self, record):
+        """
+        Conditionally emit the specified logging record.
+
+        Emission depends on filters which may have been added to the handler.
+        Wrap the actual emission of the record with acquisition/release of
+        the I/O thread lock. Returns whether the filter passed the record for
+        emission.
+        """
+        rv = self.filter(record)
+        if rv:
+            self.acquire()
+            try:
+                self.emit(record)
+            finally:
+                self.release()
+        return rv
+
+    def setFormatter(self, fmt):
+        """
+        Set the formatter for this handler.
+        """
+        self.formatter = fmt
+
+    def flush(self):
+        """
+        Ensure all logging output has been flushed.
+
+        This version does nothing and is intended to be implemented by
+        subclasses.
+        """
+        pass
+
+    def close(self):
+        """
+        Tidy up any resources used by the handler.
+
+        This version removes the handler from an internal map of handlers,
+        _handlers, which is used for handler lookup by name. Subclasses
+        should ensure that this gets called from overridden close()
+        methods.
+        """
+        #get the module data lock, as we're updating a shared structure.
+        _acquireLock()
+        try:    #unlikely to raise an exception, but you never know...
+            self._closed = True
+            if self._name and self._name in _handlers:
+                del _handlers[self._name]
+        finally:
+            _releaseLock()
+
+    def handleError(self, record):
+        """
+        Handle errors which occur during an emit() call.
+
+        This method should be called from handlers when an exception is
+        encountered during an emit() call. If raiseExceptions is false,
+        exceptions get silently ignored. This is what is mostly wanted
+        for a logging system - most users will not care about errors in
+        the logging system, they are more interested in application errors.
+        You could, however, replace this with a custom handler if you wish.
+        The record which was being processed is passed in to this method.
+        """
+        if raiseExceptions and sys.stderr:  # see issue 13807
+            t, v, tb = sys.exc_info()
+            try:
+                sys.stderr.write('--- Logging error ---\n')
+                traceback.print_exception(t, v, tb, None, sys.stderr)
+                sys.stderr.write('Call stack:\n')
+                # Walk the stack frame up until we're out of logging,
+                # so as to print the calling context.
+                frame = tb.tb_frame
+                while (frame and os.path.dirname(frame.f_code.co_filename) ==
+                       __path__[0]):
+                    frame = frame.f_back
+                if frame:
+                    traceback.print_stack(frame, file=sys.stderr)
+                else:
+                    # couldn't find the right stack frame, for some reason
+                    sys.stderr.write('Logged from file %s, line %s\n' % (
+                                     record.filename, record.lineno))
+                # Issue 18671: output logging message and arguments
+                try:
+                    sys.stderr.write('Message: %r\n'
+                                     'Arguments: %s\n' % (record.msg,
+                                                          record.args))
+                except RecursionError:  # See issue 36272
+                    raise
+                except Exception:
+                    sys.stderr.write('Unable to print the message and arguments'
+                                     ' - possible formatting error.\nUse the'
+                                     ' traceback above to help find the error.\n'
+                                    )
+            except OSError: #pragma: no cover
+                pass    # see issue 5971
+            finally:
+                del t, v, tb
+
+    def __repr__(self):
+        level = getLevelName(self.level)
+        return '<%s (%s)>' % (self.__class__.__name__, level)
+
+class StreamHandler(Handler):
+    """
+    A handler class which writes logging records, appropriately formatted,
+    to a stream. Note that this class does not close the stream, as
+    sys.stdout or sys.stderr may be used.
+    """
+
+    terminator = '\n'
+
+    def __init__(self, stream=None):
+        """
+        Initialize the handler.
+
+        If stream is not specified, sys.stderr is used.
+        """
+        Handler.__init__(self)
+        if stream is None:
+            stream = sys.stderr
+        self.stream = stream
+
+    def flush(self):
+        """
+        Flushes the stream.
+        """
+        self.acquire()
+        try:
+            if self.stream and hasattr(self.stream, "flush"):
+                self.stream.flush()
+        finally:
+            self.release()
+
+    def emit(self, record):
+        """
+        Emit a record.
+
+        If a formatter is specified, it is used to format the record.
+        The record is then written to the stream with a trailing newline.  If
+        exception information is present, it is formatted using
+        traceback.print_exception and appended to the stream.  If the stream
+        has an 'encoding' attribute, it is used to determine how to do the
+        output to the stream.
+        """
+        try:
+            msg = self.format(record)
+            stream = self.stream
+            # issue 35046: merged two stream.writes into one.
+            stream.write(msg + self.terminator)
+            self.flush()
+        except RecursionError:  # See issue 36272
+            raise
+        except Exception:
+            self.handleError(record)
+
+    def setStream(self, stream):
+        """
+        Sets the StreamHandler's stream to the specified value,
+        if it is different.
+
+        Returns the old stream, if the stream was changed, or None
+        if it wasn't.
+        """
+        if stream is self.stream:
+            result = None
+        else:
+            result = self.stream
+            self.acquire()
+            try:
+                self.flush()
+                self.stream = stream
+            finally:
+                self.release()
+        return result
+
+    def __repr__(self):
+        level = getLevelName(self.level)
+        name = getattr(self.stream, 'name', '')
+        #  bpo-36015: name can be an int
+        name = str(name)
+        if name:
+            name += ' '
+        return '<%s %s(%s)>' % (self.__class__.__name__, name, level)
+
+
+class FileHandler(StreamHandler):
+    """
+    A handler class which writes formatted logging records to disk files.
+    """
+    def __init__(self, filename, mode='a', encoding=None, delay=False, errors=None):
+        """
+        Open the specified file and use it as the stream for logging.
+        """
+        # Issue #27493: add support for Path objects to be passed in
+        filename = os.fspath(filename)
+        #keep the absolute path, otherwise derived classes which use this
+        #may come a cropper when the current directory changes
+        self.baseFilename = os.path.abspath(filename)
+        self.mode = mode
+        self.encoding = encoding
+        if "b" not in mode:
+            self.encoding = io.text_encoding(encoding)
+        self.errors = errors
+        self.delay = delay
+        # bpo-26789: FileHandler keeps a reference to the builtin open()
+        # function to be able to open or reopen the file during Python
+        # finalization.
+        self._builtin_open = open
+        if delay:
+            #We don't open the stream, but we still need to call the
+            #Handler constructor to set level, formatter, lock etc.
+            Handler.__init__(self)
+            self.stream = None
+        else:
+            StreamHandler.__init__(self, self._open())
+
+    def close(self):
+        """
+        Closes the stream.
+        """
+        self.acquire()
+        try:
+            try:
+                if self.stream:
+                    try:
+                        self.flush()
+                    finally:
+                        stream = self.stream
+                        self.stream = None
+                        if hasattr(stream, "close"):
+                            stream.close()
+            finally:
+                # Issue #19523: call unconditionally to
+                # prevent a handler leak when delay is set
+                # Also see Issue #42378: we also rely on
+                # self._closed being set to True there
+                StreamHandler.close(self)
+        finally:
+            self.release()
+
+    def _open(self):
+        """
+        Open the current base file with the (original) mode and encoding.
+        Return the resulting stream.
+        """
+        open_func = self._builtin_open
+        return open_func(self.baseFilename, self.mode,
+                         encoding=self.encoding, errors=self.errors)
+
+    def emit(self, record):
+        """
+        Emit a record.
+
+        If the stream was not opened because 'delay' was specified in the
+        constructor, open it before calling the superclass's emit.
+
+        If stream is not open, current mode is 'w' and `_closed=True`, record
+        will not be emitted (see Issue #42378).
+        """
+        if self.stream is None:
+            if self.mode != 'w' or not self._closed:
+                self.stream = self._open()
+        if self.stream:
+            StreamHandler.emit(self, record)
+
+    def __repr__(self):
+        level = getLevelName(self.level)
+        return '<%s %s (%s)>' % (self.__class__.__name__, self.baseFilename, level)
+
+
+class _StderrHandler(StreamHandler):
+    """
+    This class is like a StreamHandler using sys.stderr, but always uses
+    whatever sys.stderr is currently set to rather than the value of
+    sys.stderr at handler construction time.
+    """
+    def __init__(self, level=NOTSET):
+        """
+        Initialize the handler.
+        """
+        Handler.__init__(self, level)
+
+    @property
+    def stream(self):
+        return sys.stderr
+
+
+_defaultLastResort = _StderrHandler(WARNING)
+lastResort = _defaultLastResort
+
+#---------------------------------------------------------------------------
+#   Manager classes and functions
+#---------------------------------------------------------------------------
+
+class PlaceHolder(object):
+    """
+    PlaceHolder instances are used in the Manager logger hierarchy to take
+    the place of nodes for which no loggers have been defined. This class is
+    intended for internal use only and not as part of the public API.
+    """
+    def __init__(self, alogger):
+        """
+        Initialize with the specified logger being a child of this placeholder.
+        """
+        self.loggerMap = { alogger : None }
+
+    def append(self, alogger):
+        """
+        Add the specified logger as a child of this placeholder.
+        """
+        if alogger not in self.loggerMap:
+            self.loggerMap[alogger] = None
+
+#
+#   Determine which class to use when instantiating loggers.
+#
+
+def setLoggerClass(klass):
+    """
+    Set the class to be used when instantiating a logger. The class should
+    define __init__() such that only a name argument is required, and the
+    __init__() should call Logger.__init__()
+    """
+    if klass != Logger:
+        if not issubclass(klass, Logger):
+            raise TypeError("logger not derived from logging.Logger: "
+                            + klass.__name__)
+    global _loggerClass
+    _loggerClass = klass
+
+def getLoggerClass():
+    """
+    Return the class to be used when instantiating a logger.
+    """
+    return _loggerClass
+
+class Manager(object):
+    """
+    There is [under normal circumstances] just one Manager instance, which
+    holds the hierarchy of loggers.
+    """
+    def __init__(self, rootnode):
+        """
+        Initialize the manager with the root node of the logger hierarchy.
+        """
+        self.root = rootnode
+        self.disable = 0
+        self.emittedNoHandlerWarning = False
+        self.loggerDict = {}
+        self.loggerClass = None
+        self.logRecordFactory = None
+
+    @property
+    def disable(self):
+        return self._disable
+
+    @disable.setter
+    def disable(self, value):
+        self._disable = _checkLevel(value)
+
+    def getLogger(self, name):
+        """
+        Get a logger with the specified name (channel name), creating it
+        if it doesn't yet exist. This name is a dot-separated hierarchical
+        name, such as "a", "a.b", "a.b.c" or similar.
+
+        If a PlaceHolder existed for the specified name [i.e. the logger
+        didn't exist but a child of it did], replace it with the created
+        logger and fix up the parent/child references which pointed to the
+        placeholder to now point to the logger.
+        """
+        rv = None
+        if not isinstance(name, str):
+            raise TypeError('A logger name must be a string')
+        _acquireLock()
+        try:
+            if name in self.loggerDict:
+                rv = self.loggerDict[name]
+                if isinstance(rv, PlaceHolder):
+                    ph = rv
+                    rv = (self.loggerClass or _loggerClass)(name)
+                    rv.manager = self
+                    self.loggerDict[name] = rv
+                    self._fixupChildren(ph, rv)
+                    self._fixupParents(rv)
+            else:
+                rv = (self.loggerClass or _loggerClass)(name)
+                rv.manager = self
+                self.loggerDict[name] = rv
+                self._fixupParents(rv)
+        finally:
+            _releaseLock()
+        return rv
+
+    def setLoggerClass(self, klass):
+        """
+        Set the class to be used when instantiating a logger with this Manager.
+        """
+        if klass != Logger:
+            if not issubclass(klass, Logger):
+                raise TypeError("logger not derived from logging.Logger: "
+                                + klass.__name__)
+        self.loggerClass = klass
+
+    def setLogRecordFactory(self, factory):
+        """
+        Set the factory to be used when instantiating a log record with this
+        Manager.
+        """
+        self.logRecordFactory = factory
+
+    def _fixupParents(self, alogger):
+        """
+        Ensure that there are either loggers or placeholders all the way
+        from the specified logger to the root of the logger hierarchy.
+        """
+        name = alogger.name
+        i = name.rfind(".")
+        rv = None
+        while (i > 0) and not rv:
+            substr = name[:i]
+            if substr not in self.loggerDict:
+                self.loggerDict[substr] = PlaceHolder(alogger)
+            else:
+                obj = self.loggerDict[substr]
+                if isinstance(obj, Logger):
+                    rv = obj
+                else:
+                    assert isinstance(obj, PlaceHolder)
+                    obj.append(alogger)
+            i = name.rfind(".", 0, i - 1)
+        if not rv:
+            rv = self.root
+        alogger.parent = rv
+
+    def _fixupChildren(self, ph, alogger):
+        """
+        Ensure that children of the placeholder ph are connected to the
+        specified logger.
+        """
+        name = alogger.name
+        namelen = len(name)
+        for c in ph.loggerMap.keys():
+            #The if means ... if not c.parent.name.startswith(nm)
+            if c.parent.name[:namelen] != name:
+                alogger.parent = c.parent
+                c.parent = alogger
+
+    def _clear_cache(self):
+        """
+        Clear the cache for all loggers in loggerDict
+        Called when level changes are made
+        """
+
+        _acquireLock()
+        for logger in self.loggerDict.values():
+            if isinstance(logger, Logger):
+                logger._cache.clear()
+        self.root._cache.clear()
+        _releaseLock()
+
+#---------------------------------------------------------------------------
+#   Logger classes and functions
+#---------------------------------------------------------------------------
+
+class Logger(Filterer):
+    """
+    Instances of the Logger class represent a single logging channel. A
+    "logging channel" indicates an area of an application. Exactly how an
+    "area" is defined is up to the application developer. Since an
+    application can have any number of areas, logging channels are identified
+    by a unique string. Application areas can be nested (e.g. an area
+    of "input processing" might include sub-areas "read CSV files", "read
+    XLS files" and "read Gnumeric files"). To cater for this natural nesting,
+    channel names are organized into a namespace hierarchy where levels are
+    separated by periods, much like the Java or Python package namespace. So
+    in the instance given above, channel names might be "input" for the upper
+    level, and "input.csv", "input.xls" and "input.gnu" for the sub-levels.
+    There is no arbitrary limit to the depth of nesting.
+    """
+    def __init__(self, name, level=NOTSET):
+        """
+        Initialize the logger with a name and an optional level.
+        """
+        Filterer.__init__(self)
+        self.name = name
+        self.level = _checkLevel(level)
+        self.parent = None
+        self.propagate = True
+        self.handlers = []
+        self.disabled = False
+        self._cache = {}
+
+    def setLevel(self, level):
+        """
+        Set the logging level of this logger.  level must be an int or a str.
+        """
+        self.level = _checkLevel(level)
+        self.manager._clear_cache()
+
+    def debug(self, msg, *args, **kwargs):
+        """
+        Log 'msg % args' with severity 'DEBUG'.
+
+        To pass exception information, use the keyword argument exc_info with
+        a true value, e.g.
+
+        logger.debug("Houston, we have a %s", "thorny problem", exc_info=1)
+        """
+        if self.isEnabledFor(DEBUG):
+            self._log(DEBUG, msg, args, **kwargs)
+
+    def info(self, msg, *args, **kwargs):
+        """
+        Log 'msg % args' with severity 'INFO'.
+
+        To pass exception information, use the keyword argument exc_info with
+        a true value, e.g.
+
+        logger.info("Houston, we have a %s", "interesting problem", exc_info=1)
+        """
+        if self.isEnabledFor(INFO):
+            self._log(INFO, msg, args, **kwargs)
+
+    def warning(self, msg, *args, **kwargs):
+        """
+        Log 'msg % args' with severity 'WARNING'.
+
+        To pass exception information, use the keyword argument exc_info with
+        a true value, e.g.
+
+        logger.warning("Houston, we have a %s", "bit of a problem", exc_info=1)
+        """
+        if self.isEnabledFor(WARNING):
+            self._log(WARNING, msg, args, **kwargs)
+
+    def warn(self, msg, *args, **kwargs):
+        warnings.warn("The 'warn' method is deprecated, "
+            "use 'warning' instead", DeprecationWarning, 2)
+        self.warning(msg, *args, **kwargs)
+
+    def error(self, msg, *args, **kwargs):
+        """
+        Log 'msg % args' with severity 'ERROR'.
+
+        To pass exception information, use the keyword argument exc_info with
+        a true value, e.g.
+
+        logger.error("Houston, we have a %s", "major problem", exc_info=1)
+        """
+        if self.isEnabledFor(ERROR):
+            self._log(ERROR, msg, args, **kwargs)
+
+    def exception(self, msg, *args, exc_info=True, **kwargs):
+        """
+        Convenience method for logging an ERROR with exception information.
+        """
+        self.error(msg, *args, exc_info=exc_info, **kwargs)
+
+    def critical(self, msg, *args, **kwargs):
+        """
+        Log 'msg % args' with severity 'CRITICAL'.
+
+        To pass exception information, use the keyword argument exc_info with
+        a true value, e.g.
+
+        logger.critical("Houston, we have a %s", "major disaster", exc_info=1)
+        """
+        if self.isEnabledFor(CRITICAL):
+            self._log(CRITICAL, msg, args, **kwargs)
+
+    def fatal(self, msg, *args, **kwargs):
+        """
+        Don't use this method, use critical() instead.
+        """
+        self.critical(msg, *args, **kwargs)
+
+    def log(self, level, msg, *args, **kwargs):
+        """
+        Log 'msg % args' with the integer severity 'level'.
+
+        To pass exception information, use the keyword argument exc_info with
+        a true value, e.g.
+
+        logger.log(level, "We have a %s", "mysterious problem", exc_info=1)
+        """
+        if not isinstance(level, int):
+            if raiseExceptions:
+                raise TypeError("level must be an integer")
+            else:
+                return
+        if self.isEnabledFor(level):
+            self._log(level, msg, args, **kwargs)
+
+    def findCaller(self, stack_info=False, stacklevel=1):
+        """
+        Find the stack frame of the caller so that we can note the source
+        file name, line number and function name.
+        """
+        f = currentframe()
+        #On some versions of IronPython, currentframe() returns None if
+        #IronPython isn't run with -X:Frames.
+        if f is not None:
+            f = f.f_back
+        orig_f = f
+        while f and stacklevel > 1:
+            f = f.f_back
+            stacklevel -= 1
+        if not f:
+            f = orig_f
+        rv = "(unknown file)", 0, "(unknown function)", None
+        while hasattr(f, "f_code"):
+            co = f.f_code
+            filename = os.path.normcase(co.co_filename)
+            if filename == _srcfile:
+                f = f.f_back
+                continue
+            sinfo = None
+            if stack_info:
+                sio = io.StringIO()
+                sio.write('Stack (most recent call last):\n')
+                traceback.print_stack(f, file=sio)
+                sinfo = sio.getvalue()
+                if sinfo[-1] == '\n':
+                    sinfo = sinfo[:-1]
+                sio.close()
+            rv = (co.co_filename, f.f_lineno, co.co_name, sinfo)
+            break
+        return rv
+
+    def makeRecord(self, name, level, fn, lno, msg, args, exc_info,
+                   func=None, extra=None, sinfo=None):
+        """
+        A factory method which can be overridden in subclasses to create
+        specialized LogRecords.
+        """
+        rv = _logRecordFactory(name, level, fn, lno, msg, args, exc_info, func,
+                             sinfo)
+        if extra is not None:
+            for key in extra:
+                if (key in ["message", "asctime"]) or (key in rv.__dict__):
+                    raise KeyError("Attempt to overwrite %r in LogRecord" % key)
+                rv.__dict__[key] = extra[key]
+        return rv
+
+    def _log(self, level, msg, args, exc_info=None, extra=None, stack_info=False,
+             stacklevel=1):
+        """
+        Low-level logging routine which creates a LogRecord and then calls
+        all the handlers of this logger to handle the record.
+        """
+        sinfo = None
+        if _srcfile:
+            #IronPython doesn't track Python frames, so findCaller raises an
+            #exception on some versions of IronPython. We trap it here so that
+            #IronPython can use logging.
+            try:
+                fn, lno, func, sinfo = self.findCaller(stack_info, stacklevel)
+            except ValueError: # pragma: no cover
+                fn, lno, func = "(unknown file)", 0, "(unknown function)"
+        else: # pragma: no cover
+            fn, lno, func = "(unknown file)", 0, "(unknown function)"
+        if exc_info:
+            if isinstance(exc_info, BaseException):
+                exc_info = (type(exc_info), exc_info, exc_info.__traceback__)
+            elif not isinstance(exc_info, tuple):
+                exc_info = sys.exc_info()
+        record = self.makeRecord(self.name, level, fn, lno, msg, args,
+                                 exc_info, func, extra, sinfo)
+        self.handle(record)
+
+    def handle(self, record):
+        """
+        Call the handlers for the specified record.
+
+        This method is used for unpickled records received from a socket, as
+        well as those created locally. Logger-level filtering is applied.
+        """
+        if (not self.disabled) and self.filter(record):
+            self.callHandlers(record)
+
+    def addHandler(self, hdlr):
+        """
+        Add the specified handler to this logger.
+        """
+        _acquireLock()
+        try:
+            if not (hdlr in self.handlers):
+                self.handlers.append(hdlr)
+        finally:
+            _releaseLock()
+
+    def removeHandler(self, hdlr):
+        """
+        Remove the specified handler from this logger.
+        """
+        _acquireLock()
+        try:
+            if hdlr in self.handlers:
+                self.handlers.remove(hdlr)
+        finally:
+            _releaseLock()
+
+    def hasHandlers(self):
+        """
+        See if this logger has any handlers configured.
+
+        Loop through all handlers for this logger and its parents in the
+        logger hierarchy. Return True if a handler was found, else False.
+        Stop searching up the hierarchy whenever a logger with the "propagate"
+        attribute set to zero is found - that will be the last logger which
+        is checked for the existence of handlers.
+        """
+        c = self
+        rv = False
+        while c:
+            if c.handlers:
+                rv = True
+                break
+            if not c.propagate:
+                break
+            else:
+                c = c.parent
+        return rv
+
+    def callHandlers(self, record):
+        """
+        Pass a record to all relevant handlers.
+
+        Loop through all handlers for this logger and its parents in the
+        logger hierarchy. If no handler was found, output a one-off error
+        message to sys.stderr. Stop searching up the hierarchy whenever a
+        logger with the "propagate" attribute set to zero is found - that
+        will be the last logger whose handlers are called.
+        """
+        c = self
+        found = 0
+        while c:
+            for hdlr in c.handlers:
+                found = found + 1
+                if record.levelno >= hdlr.level:
+                    hdlr.handle(record)
+            if not c.propagate:
+                c = None    #break out
+            else:
+                c = c.parent
+        if (found == 0):
+            if lastResort:
+                if record.levelno >= lastResort.level:
+                    lastResort.handle(record)
+            elif raiseExceptions and not self.manager.emittedNoHandlerWarning:
+                sys.stderr.write("No handlers could be found for logger"
+                                 " \"%s\"\n" % self.name)
+                self.manager.emittedNoHandlerWarning = True
+
+    def getEffectiveLevel(self):
+        """
+        Get the effective level for this logger.
+
+        Loop through this logger and its parents in the logger hierarchy,
+        looking for a non-zero logging level. Return the first one found.
+        """
+        logger = self
+        while logger:
+            if logger.level:
+                return logger.level
+            logger = logger.parent
+        return NOTSET
+
+    def isEnabledFor(self, level):
+        """
+        Is this logger enabled for level 'level'?
+        """
+        if self.disabled:
+            return False
+
+        try:
+            return self._cache[level]
+        except KeyError:
+            _acquireLock()
+            try:
+                if self.manager.disable >= level:
+                    is_enabled = self._cache[level] = False
+                else:
+                    is_enabled = self._cache[level] = (
+                        level >= self.getEffectiveLevel()
+                    )
+            finally:
+                _releaseLock()
+            return is_enabled
+
+    def getChild(self, suffix):
+        """
+        Get a logger which is a descendant to this one.
+
+        This is a convenience method, such that
+
+        logging.getLogger('abc').getChild('def.ghi')
+
+        is the same as
+
+        logging.getLogger('abc.def.ghi')
+
+        It's useful, for example, when the parent logger is named using
+        __name__ rather than a literal string.
+        """
+        if self.root is not self:
+            suffix = '.'.join((self.name, suffix))
+        return self.manager.getLogger(suffix)
+
+    def __repr__(self):
+        level = getLevelName(self.getEffectiveLevel())
+        return '<%s %s (%s)>' % (self.__class__.__name__, self.name, level)
+
+    def __reduce__(self):
+        # In general, only the root logger will not be accessible via its name.
+        # However, the root logger's class has its own __reduce__ method.
+        if getLogger(self.name) is not self:
+            import pickle
+            raise pickle.PicklingError('logger cannot be pickled')
+        return getLogger, (self.name,)
+
+
+class RootLogger(Logger):
+    """
+    A root logger is not that different to any other logger, except that
+    it must have a logging level and there is only one instance of it in
+    the hierarchy.
+    """
+    def __init__(self, level):
+        """
+        Initialize the logger with the name "root".
+        """
+        Logger.__init__(self, "root", level)
+
+    def __reduce__(self):
+        return getLogger, ()
+
+_loggerClass = Logger
+
+class LoggerAdapter(object):
+    """
+    An adapter for loggers which makes it easier to specify contextual
+    information in logging output.
+    """
+
+    def __init__(self, logger, extra=None):
+        """
+        Initialize the adapter with a logger and a dict-like object which
+        provides contextual information. This constructor signature allows
+        easy stacking of LoggerAdapters, if so desired.
+
+        You can effectively pass keyword arguments as shown in the
+        following example:
+
+        adapter = LoggerAdapter(someLogger, dict(p1=v1, p2="v2"))
+        """
+        self.logger = logger
+        self.extra = extra
+
+    def process(self, msg, kwargs):
+        """
+        Process the logging message and keyword arguments passed in to
+        a logging call to insert contextual information. You can either
+        manipulate the message itself, the keyword args or both. Return
+        the message and kwargs modified (or not) to suit your needs.
+
+        Normally, you'll only need to override this one method in a
+        LoggerAdapter subclass for your specific needs.
+        """
+        kwargs["extra"] = self.extra
+        return msg, kwargs
+
+    #
+    # Boilerplate convenience methods
+    #
+    def debug(self, msg, *args, **kwargs):
+        """
+        Delegate a debug call to the underlying logger.
+        """
+        self.log(DEBUG, msg, *args, **kwargs)
+
+    def info(self, msg, *args, **kwargs):
+        """
+        Delegate an info call to the underlying logger.
+        """
+        self.log(INFO, msg, *args, **kwargs)
+
+    def warning(self, msg, *args, **kwargs):
+        """
+        Delegate a warning call to the underlying logger.
+        """
+        self.log(WARNING, msg, *args, **kwargs)
+
+    def warn(self, msg, *args, **kwargs):
+        warnings.warn("The 'warn' method is deprecated, "
+            "use 'warning' instead", DeprecationWarning, 2)
+        self.warning(msg, *args, **kwargs)
+
+    def error(self, msg, *args, **kwargs):
+        """
+        Delegate an error call to the underlying logger.
+        """
+        self.log(ERROR, msg, *args, **kwargs)
+
+    def exception(self, msg, *args, exc_info=True, **kwargs):
+        """
+        Delegate an exception call to the underlying logger.
+        """
+        self.log(ERROR, msg, *args, exc_info=exc_info, **kwargs)
+
+    def critical(self, msg, *args, **kwargs):
+        """
+        Delegate a critical call to the underlying logger.
+        """
+        self.log(CRITICAL, msg, *args, **kwargs)
+
+    def log(self, level, msg, *args, **kwargs):
+        """
+        Delegate a log call to the underlying logger, after adding
+        contextual information from this adapter instance.
+        """
+        if self.isEnabledFor(level):
+            msg, kwargs = self.process(msg, kwargs)
+            self.logger.log(level, msg, *args, **kwargs)
+
+    def isEnabledFor(self, level):
+        """
+        Is this logger enabled for level 'level'?
+        """
+        return self.logger.isEnabledFor(level)
+
+    def setLevel(self, level):
+        """
+        Set the specified level on the underlying logger.
+        """
+        self.logger.setLevel(level)
+
+    def getEffectiveLevel(self):
+        """
+        Get the effective level for the underlying logger.
+        """
+        return self.logger.getEffectiveLevel()
+
+    def hasHandlers(self):
+        """
+        See if the underlying logger has any handlers.
+        """
+        return self.logger.hasHandlers()
+
+    def _log(self, level, msg, args, exc_info=None, extra=None, stack_info=False):
+        """
+        Low-level log implementation, proxied to allow nested logger adapters.
+        """
+        return self.logger._log(
+            level,
+            msg,
+            args,
+            exc_info=exc_info,
+            extra=extra,
+            stack_info=stack_info,
+        )
+
+    @property
+    def manager(self):
+        return self.logger.manager
+
+    @manager.setter
+    def manager(self, value):
+        self.logger.manager = value
+
+    @property
+    def name(self):
+        return self.logger.name
+
+    def __repr__(self):
+        logger = self.logger
+        level = getLevelName(logger.getEffectiveLevel())
+        return '<%s %s (%s)>' % (self.__class__.__name__, logger.name, level)
+
+root = RootLogger(WARNING)
+Logger.root = root
+Logger.manager = Manager(Logger.root)
+
+#---------------------------------------------------------------------------
+# Configuration classes and functions
+#---------------------------------------------------------------------------
+
+def basicConfig(**kwargs):
+    """
+    Do basic configuration for the logging system.
+
+    This function does nothing if the root logger already has handlers
+    configured, unless the keyword argument *force* is set to ``True``.
+    It is a convenience method intended for use by simple scripts
+    to do one-shot configuration of the logging package.
+
+    The default behaviour is to create a StreamHandler which writes to
+    sys.stderr, set a formatter using the BASIC_FORMAT format string, and
+    add the handler to the root logger.
+
+    A number of optional keyword arguments may be specified, which can alter
+    the default behaviour.
+
+    filename  Specifies that a FileHandler be created, using the specified
+              filename, rather than a StreamHandler.
+    filemode  Specifies the mode to open the file, if filename is specified
+              (if filemode is unspecified, it defaults to 'a').
+    format    Use the specified format string for the handler.
+    datefmt   Use the specified date/time format.
+    style     If a format string is specified, use this to specify the
+              type of format string (possible values '%', '{', '$', for
+              %-formatting, :meth:`str.format` and :class:`string.Template`
+              - defaults to '%').
+    level     Set the root logger level to the specified level.
+    stream    Use the specified stream to initialize the StreamHandler. Note
+              that this argument is incompatible with 'filename' - if both
+              are present, 'stream' is ignored.
+    handlers  If specified, this should be an iterable of already created
+              handlers, which will be added to the root handler. Any handler
+              in the list which does not have a formatter assigned will be
+              assigned the formatter created in this function.
+    force     If this keyword  is specified as true, any existing handlers
+              attached to the root logger are removed and closed, before
+              carrying out the configuration as specified by the other
+              arguments.
+    encoding  If specified together with a filename, this encoding is passed to
+              the created FileHandler, causing it to be used when the file is
+              opened.
+    errors    If specified together with a filename, this value is passed to the
+              created FileHandler, causing it to be used when the file is
+              opened in text mode. If not specified, the default value is
+              `backslashreplace`.
+
+    Note that you could specify a stream created using open(filename, mode)
+    rather than passing the filename and mode in. However, it should be
+    remembered that StreamHandler does not close its stream (since it may be
+    using sys.stdout or sys.stderr), whereas FileHandler closes its stream
+    when the handler is closed.
+
+    .. versionchanged:: 3.2
+       Added the ``style`` parameter.
+
+    .. versionchanged:: 3.3
+       Added the ``handlers`` parameter. A ``ValueError`` is now thrown for
+       incompatible arguments (e.g. ``handlers`` specified together with
+       ``filename``/``filemode``, or ``filename``/``filemode`` specified
+       together with ``stream``, or ``handlers`` specified together with
+       ``stream``.
+
+    .. versionchanged:: 3.8
+       Added the ``force`` parameter.
+
+    .. versionchanged:: 3.9
+       Added the ``encoding`` and ``errors`` parameters.
+    """
+    # Add thread safety in case someone mistakenly calls
+    # basicConfig() from multiple threads
+    _acquireLock()
+    try:
+        force = kwargs.pop('force', False)
+        encoding = kwargs.pop('encoding', None)
+        errors = kwargs.pop('errors', 'backslashreplace')
+        if force:
+            for h in root.handlers[:]:
+                root.removeHandler(h)
+                h.close()
+        if len(root.handlers) == 0:
+            handlers = kwargs.pop("handlers", None)
+            if handlers is None:
+                if "stream" in kwargs and "filename" in kwargs:
+                    raise ValueError("'stream' and 'filename' should not be "
+                                     "specified together")
+            else:
+                if "stream" in kwargs or "filename" in kwargs:
+                    raise ValueError("'stream' or 'filename' should not be "
+                                     "specified together with 'handlers'")
+            if handlers is None:
+                filename = kwargs.pop("filename", None)
+                mode = kwargs.pop("filemode", 'a')
+                if filename:
+                    if 'b' in mode:
+                        errors = None
+                    else:
+                        encoding = io.text_encoding(encoding)
+                    h = FileHandler(filename, mode,
+                                    encoding=encoding, errors=errors)
+                else:
+                    stream = kwargs.pop("stream", None)
+                    h = StreamHandler(stream)
+                handlers = [h]
+            dfs = kwargs.pop("datefmt", None)
+            style = kwargs.pop("style", '%')
+            if style not in _STYLES:
+                raise ValueError('Style must be one of: %s' % ','.join(
+                                 _STYLES.keys()))
+            fs = kwargs.pop("format", _STYLES[style][1])
+            fmt = Formatter(fs, dfs, style)
+            for h in handlers:
+                if h.formatter is None:
+                    h.setFormatter(fmt)
+                root.addHandler(h)
+            level = kwargs.pop("level", None)
+            if level is not None:
+                root.setLevel(level)
+            if kwargs:
+                keys = ', '.join(kwargs.keys())
+                raise ValueError('Unrecognised argument(s): %s' % keys)
+    finally:
+        _releaseLock()
+
+#---------------------------------------------------------------------------
+# Utility functions at module level.
+# Basically delegate everything to the root logger.
+#---------------------------------------------------------------------------
+
+def getLogger(name=None):
+    """
+    Return a logger with the specified name, creating it if necessary.
+
+    If no name is specified, return the root logger.
+    """
+    if not name or isinstance(name, str) and name == root.name:
+        return root
+    return Logger.manager.getLogger(name)
+
+def critical(msg, *args, **kwargs):
+    """
+    Log a message with severity 'CRITICAL' on the root logger. If the logger
+    has no handlers, call basicConfig() to add a console handler with a
+    pre-defined format.
+    """
+    if len(root.handlers) == 0:
+        basicConfig()
+    root.critical(msg, *args, **kwargs)
+
+def fatal(msg, *args, **kwargs):
+    """
+    Don't use this function, use critical() instead.
+    """
+    critical(msg, *args, **kwargs)
+
+def error(msg, *args, **kwargs):
+    """
+    Log a message with severity 'ERROR' on the root logger. If the logger has
+    no handlers, call basicConfig() to add a console handler with a pre-defined
+    format.
+    """
+    if len(root.handlers) == 0:
+        basicConfig()
+    root.error(msg, *args, **kwargs)
+
+def exception(msg, *args, exc_info=True, **kwargs):
+    """
+    Log a message with severity 'ERROR' on the root logger, with exception
+    information. If the logger has no handlers, basicConfig() is called to add
+    a console handler with a pre-defined format.
+    """
+    error(msg, *args, exc_info=exc_info, **kwargs)
+
+def warning(msg, *args, **kwargs):
+    """
+    Log a message with severity 'WARNING' on the root logger. If the logger has
+    no handlers, call basicConfig() to add a console handler with a pre-defined
+    format.
+    """
+    if len(root.handlers) == 0:
+        basicConfig()
+    root.warning(msg, *args, **kwargs)
+
+def warn(msg, *args, **kwargs):
+    warnings.warn("The 'warn' function is deprecated, "
+        "use 'warning' instead", DeprecationWarning, 2)
+    warning(msg, *args, **kwargs)
+
+def info(msg, *args, **kwargs):
+    """
+    Log a message with severity 'INFO' on the root logger. If the logger has
+    no handlers, call basicConfig() to add a console handler with a pre-defined
+    format.
+    """
+    if len(root.handlers) == 0:
+        basicConfig()
+    root.info(msg, *args, **kwargs)
+
+def debug(msg, *args, **kwargs):
+    """
+    Log a message with severity 'DEBUG' on the root logger. If the logger has
+    no handlers, call basicConfig() to add a console handler with a pre-defined
+    format.
+    """
+    if len(root.handlers) == 0:
+        basicConfig()
+    root.debug(msg, *args, **kwargs)
+
+def log(level, msg, *args, **kwargs):
+    """
+    Log 'msg % args' with the integer severity 'level' on the root logger. If
+    the logger has no handlers, call basicConfig() to add a console handler
+    with a pre-defined format.
+    """
+    if len(root.handlers) == 0:
+        basicConfig()
+    root.log(level, msg, *args, **kwargs)
+
+def disable(level=CRITICAL):
+    """
+    Disable all logging calls of severity 'level' and below.
+    """
+    root.manager.disable = level
+    root.manager._clear_cache()
+
+def shutdown(handlerList=_handlerList):
+    """
+    Perform any cleanup actions in the logging system (e.g. flushing
+    buffers).
+
+    Should be called at application exit.
+    """
+    for wr in reversed(handlerList[:]):
+        #errors might occur, for example, if files are locked
+        #we just ignore them if raiseExceptions is not set
+        try:
+            h = wr()
+            if h:
+                try:
+                    h.acquire()
+                    h.flush()
+                    h.close()
+                except (OSError, ValueError):
+                    # Ignore errors which might be caused
+                    # because handlers have been closed but
+                    # references to them are still around at
+                    # application exit.
+                    pass
+                finally:
+                    h.release()
+        except: # ignore everything, as we're shutting down
+            if raiseExceptions:
+                raise
+            #else, swallow
+
+#Let's try and shutdown automatically on application exit...
+import atexit
+atexit.register(shutdown)
+
+# Null handler
+
+class NullHandler(Handler):
+    """
+    This handler does nothing. It's intended to be used to avoid the
+    "No handlers could be found for logger XXX" one-off warning. This is
+    important for library code, which may contain code to log events. If a user
+    of the library does not configure logging, the one-off warning might be
+    produced; to avoid this, the library developer simply needs to instantiate
+    a NullHandler and add it to the top-level logger of the library module or
+    package.
+    """
+    def handle(self, record):
+        """Stub."""
+
+    def emit(self, record):
+        """Stub."""
+
+    def createLock(self):
+        self.lock = None
+
+    def _at_fork_reinit(self):
+        pass
+
+# Warnings integration
+
+_warnings_showwarning = None
+
+def _showwarning(message, category, filename, lineno, file=None, line=None):
+    """
+    Implementation of showwarnings which redirects to logging, which will first
+    check to see if the file parameter is None. If a file is specified, it will
+    delegate to the original warnings implementation of showwarning. Otherwise,
+    it will call warnings.formatwarning and will log the resulting string to a
+    warnings logger named "py.warnings" with level logging.WARNING.
+    """
+    if file is not None:
+        if _warnings_showwarning is not None:
+            _warnings_showwarning(message, category, filename, lineno, file, line)
+    else:
+        s = warnings.formatwarning(message, category, filename, lineno, line)
+        logger = getLogger("py.warnings")
+        if not logger.handlers:
+            logger.addHandler(NullHandler())
+        logger.warning("%s", s)
+
+def captureWarnings(capture):
+    """
+    If capture is true, redirect all warnings to the logging package.
+    If capture is False, ensure that warnings are not redirected to logging
+    but to their original destinations.
+    """
+    global _warnings_showwarning
+    if capture:
+        if _warnings_showwarning is None:
+            _warnings_showwarning = warnings.showwarning
+            warnings.showwarning = _showwarning
+    else:
+        if _warnings_showwarning is not None:
+            warnings.showwarning = _warnings_showwarning
+            _warnings_showwarning = None

valley/lib/python3.10/logging/config.py

@@ -0,0 +1,947 @@
+# Copyright 2001-2019 by Vinay Sajip. All Rights Reserved.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose and without fee is hereby granted,
+# provided that the above copyright notice appear in all copies and that
+# both that copyright notice and this permission notice appear in
+# supporting documentation, and that the name of Vinay Sajip
+# not be used in advertising or publicity pertaining to distribution
+# of the software without specific, written prior permission.
+# VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+# VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+"""
+Configuration functions for the logging package for Python. The core package
+is based on PEP 282 and comments thereto in comp.lang.python, and influenced
+by Apache's log4j system.
+
+Copyright (C) 2001-2019 Vinay Sajip. All Rights Reserved.
+
+To use, simply 'import logging' and log away!
+"""
+
+import errno
+import io
+import logging
+import logging.handlers
+import re
+import struct
+import sys
+import threading
+import traceback
+
+from socketserver import ThreadingTCPServer, StreamRequestHandler
+
+
+DEFAULT_LOGGING_CONFIG_PORT = 9030
+
+RESET_ERROR = errno.ECONNRESET
+
+#
+#   The following code implements a socket listener for on-the-fly
+#   reconfiguration of logging.
+#
+#   _listener holds the server object doing the listening
+_listener = None
+
+def fileConfig(fname, defaults=None, disable_existing_loggers=True, encoding=None):
+    """
+    Read the logging configuration from a ConfigParser-format file.
+
+    This can be called several times from an application, allowing an end user
+    the ability to select from various pre-canned configurations (if the
+    developer provides a mechanism to present the choices and load the chosen
+    configuration).
+    """
+    import configparser
+
+    if isinstance(fname, configparser.RawConfigParser):
+        cp = fname
+    else:
+        cp = configparser.ConfigParser(defaults)
+        if hasattr(fname, 'readline'):
+            cp.read_file(fname)
+        else:
+            encoding = io.text_encoding(encoding)
+            cp.read(fname, encoding=encoding)
+
+    formatters = _create_formatters(cp)
+
+    # critical section
+    logging._acquireLock()
+    try:
+        _clearExistingHandlers()
+
+        # Handlers add themselves to logging._handlers
+        handlers = _install_handlers(cp, formatters)
+        _install_loggers(cp, handlers, disable_existing_loggers)
+    finally:
+        logging._releaseLock()
+
+
+def _resolve(name):
+    """Resolve a dotted name to a global object."""
+    name = name.split('.')
+    used = name.pop(0)
+    found = __import__(used)
+    for n in name:
+        used = used + '.' + n
+        try:
+            found = getattr(found, n)
+        except AttributeError:
+            __import__(used)
+            found = getattr(found, n)
+    return found
+
+def _strip_spaces(alist):
+    return map(str.strip, alist)
+
+def _create_formatters(cp):
+    """Create and return formatters"""
+    flist = cp["formatters"]["keys"]
+    if not len(flist):
+        return {}
+    flist = flist.split(",")
+    flist = _strip_spaces(flist)
+    formatters = {}
+    for form in flist:
+        sectname = "formatter_%s" % form
+        fs = cp.get(sectname, "format", raw=True, fallback=None)
+        dfs = cp.get(sectname, "datefmt", raw=True, fallback=None)
+        stl = cp.get(sectname, "style", raw=True, fallback='%')
+        c = logging.Formatter
+        class_name = cp[sectname].get("class")
+        if class_name:
+            c = _resolve(class_name)
+        f = c(fs, dfs, stl)
+        formatters[form] = f
+    return formatters
+
+
+def _install_handlers(cp, formatters):
+    """Install and return handlers"""
+    hlist = cp["handlers"]["keys"]
+    if not len(hlist):
+        return {}
+    hlist = hlist.split(",")
+    hlist = _strip_spaces(hlist)
+    handlers = {}
+    fixups = [] #for inter-handler references
+    for hand in hlist:
+        section = cp["handler_%s" % hand]
+        klass = section["class"]
+        fmt = section.get("formatter", "")
+        try:
+            klass = eval(klass, vars(logging))
+        except (AttributeError, NameError):
+            klass = _resolve(klass)
+        args = section.get("args", '()')
+        args = eval(args, vars(logging))
+        kwargs = section.get("kwargs", '{}')
+        kwargs = eval(kwargs, vars(logging))
+        h = klass(*args, **kwargs)
+        h.name = hand
+        if "level" in section:
+            level = section["level"]
+            h.setLevel(level)
+        if len(fmt):
+            h.setFormatter(formatters[fmt])
+        if issubclass(klass, logging.handlers.MemoryHandler):
+            target = section.get("target", "")
+            if len(target): #the target handler may not be loaded yet, so keep for later...
+                fixups.append((h, target))
+        handlers[hand] = h
+    #now all handlers are loaded, fixup inter-handler references...
+    for h, t in fixups:
+        h.setTarget(handlers[t])
+    return handlers
+
+def _handle_existing_loggers(existing, child_loggers, disable_existing):
+    """
+    When (re)configuring logging, handle loggers which were in the previous
+    configuration but are not in the new configuration. There's no point
+    deleting them as other threads may continue to hold references to them;
+    and by disabling them, you stop them doing any logging.
+
+    However, don't disable children of named loggers, as that's probably not
+    what was intended by the user. Also, allow existing loggers to NOT be
+    disabled if disable_existing is false.
+    """
+    root = logging.root
+    for log in existing:
+        logger = root.manager.loggerDict[log]
+        if log in child_loggers:
+            if not isinstance(logger, logging.PlaceHolder):
+                logger.setLevel(logging.NOTSET)
+                logger.handlers = []
+                logger.propagate = True
+        else:
+            logger.disabled = disable_existing
+
+def _install_loggers(cp, handlers, disable_existing):
+    """Create and install loggers"""
+
+    # configure the root first
+    llist = cp["loggers"]["keys"]
+    llist = llist.split(",")
+    llist = list(_strip_spaces(llist))
+    llist.remove("root")
+    section = cp["logger_root"]
+    root = logging.root
+    log = root
+    if "level" in section:
+        level = section["level"]
+        log.setLevel(level)
+    for h in root.handlers[:]:
+        root.removeHandler(h)
+    hlist = section["handlers"]
+    if len(hlist):
+        hlist = hlist.split(",")
+        hlist = _strip_spaces(hlist)
+        for hand in hlist:
+            log.addHandler(handlers[hand])
+
+    #and now the others...
+    #we don't want to lose the existing loggers,
+    #since other threads may have pointers to them.
+    #existing is set to contain all existing loggers,
+    #and as we go through the new configuration we
+    #remove any which are configured. At the end,
+    #what's left in existing is the set of loggers
+    #which were in the previous configuration but
+    #which are not in the new configuration.
+    existing = list(root.manager.loggerDict.keys())
+    #The list needs to be sorted so that we can
+    #avoid disabling child loggers of explicitly
+    #named loggers. With a sorted list it is easier
+    #to find the child loggers.
+    existing.sort()
+    #We'll keep the list of existing loggers
+    #which are children of named loggers here...
+    child_loggers = []
+    #now set up the new ones...
+    for log in llist:
+        section = cp["logger_%s" % log]
+        qn = section["qualname"]
+        propagate = section.getint("propagate", fallback=1)
+        logger = logging.getLogger(qn)
+        if qn in existing:
+            i = existing.index(qn) + 1 # start with the entry after qn
+            prefixed = qn + "."
+            pflen = len(prefixed)
+            num_existing = len(existing)
+            while i < num_existing:
+                if existing[i][:pflen] == prefixed:
+                    child_loggers.append(existing[i])
+                i += 1
+            existing.remove(qn)
+        if "level" in section:
+            level = section["level"]
+            logger.setLevel(level)
+        for h in logger.handlers[:]:
+            logger.removeHandler(h)
+        logger.propagate = propagate
+        logger.disabled = 0
+        hlist = section["handlers"]
+        if len(hlist):
+            hlist = hlist.split(",")
+            hlist = _strip_spaces(hlist)
+            for hand in hlist:
+                logger.addHandler(handlers[hand])
+
+    #Disable any old loggers. There's no point deleting
+    #them as other threads may continue to hold references
+    #and by disabling them, you stop them doing any logging.
+    #However, don't disable children of named loggers, as that's
+    #probably not what was intended by the user.
+    #for log in existing:
+    #    logger = root.manager.loggerDict[log]
+    #    if log in child_loggers:
+    #        logger.level = logging.NOTSET
+    #        logger.handlers = []
+    #        logger.propagate = 1
+    #    elif disable_existing_loggers:
+    #        logger.disabled = 1
+    _handle_existing_loggers(existing, child_loggers, disable_existing)
+
+
+def _clearExistingHandlers():
+    """Clear and close existing handlers"""
+    logging._handlers.clear()
+    logging.shutdown(logging._handlerList[:])
+    del logging._handlerList[:]
+
+
+IDENTIFIER = re.compile('^[a-z_][a-z0-9_]*$', re.I)
+
+
+def valid_ident(s):
+    m = IDENTIFIER.match(s)
+    if not m:
+        raise ValueError('Not a valid Python identifier: %r' % s)
+    return True
+
+
+class ConvertingMixin(object):
+    """For ConvertingXXX's, this mixin class provides common functions"""
+
+    def convert_with_key(self, key, value, replace=True):
+        result = self.configurator.convert(value)
+        #If the converted value is different, save for next time
+        if value is not result:
+            if replace:
+                self[key] = result
+            if type(result) in (ConvertingDict, ConvertingList,
+                               ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+    def convert(self, value):
+        result = self.configurator.convert(value)
+        if value is not result:
+            if type(result) in (ConvertingDict, ConvertingList,
+                               ConvertingTuple):
+                result.parent = self
+        return result
+
+
+# The ConvertingXXX classes are wrappers around standard Python containers,
+# and they serve to convert any suitable values in the container. The
+# conversion converts base dicts, lists and tuples to their wrapped
+# equivalents, whereas strings which match a conversion format are converted
+# appropriately.
+#
+# Each wrapper should have a configurator attribute holding the actual
+# configurator to use for conversion.
+
+class ConvertingDict(dict, ConvertingMixin):
+    """A converting dictionary wrapper."""
+
+    def __getitem__(self, key):
+        value = dict.__getitem__(self, key)
+        return self.convert_with_key(key, value)
+
+    def get(self, key, default=None):
+        value = dict.get(self, key, default)
+        return self.convert_with_key(key, value)
+
+    def pop(self, key, default=None):
+        value = dict.pop(self, key, default)
+        return self.convert_with_key(key, value, replace=False)
+
+class ConvertingList(list, ConvertingMixin):
+    """A converting list wrapper."""
+    def __getitem__(self, key):
+        value = list.__getitem__(self, key)
+        return self.convert_with_key(key, value)
+
+    def pop(self, idx=-1):
+        value = list.pop(self, idx)
+        return self.convert(value)
+
+class ConvertingTuple(tuple, ConvertingMixin):
+    """A converting tuple wrapper."""
+    def __getitem__(self, key):
+        value = tuple.__getitem__(self, key)
+        # Can't replace a tuple entry.
+        return self.convert_with_key(key, value, replace=False)
+
+class BaseConfigurator(object):
+    """
+    The configurator base class which defines some useful defaults.
+    """
+
+    CONVERT_PATTERN = re.compile(r'^(?P<prefix>[a-z]+)://(?P<suffix>.*)$')
+
+    WORD_PATTERN = re.compile(r'^\s*(\w+)\s*')
+    DOT_PATTERN = re.compile(r'^\.\s*(\w+)\s*')
+    INDEX_PATTERN = re.compile(r'^\[\s*(\w+)\s*\]\s*')
+    DIGIT_PATTERN = re.compile(r'^\d+$')
+
+    value_converters = {
+        'ext' : 'ext_convert',
+        'cfg' : 'cfg_convert',
+    }
+
+    # We might want to use a different one, e.g. importlib
+    importer = staticmethod(__import__)
+
+    def __init__(self, config):
+        self.config = ConvertingDict(config)
+        self.config.configurator = self
+
+    def resolve(self, s):
+        """
+        Resolve strings to objects using standard import and attribute
+        syntax.
+        """
+        name = s.split('.')
+        used = name.pop(0)
+        try:
+            found = self.importer(used)
+            for frag in name:
+                used += '.' + frag
+                try:
+                    found = getattr(found, frag)
+                except AttributeError:
+                    self.importer(used)
+                    found = getattr(found, frag)
+            return found
+        except ImportError:
+            e, tb = sys.exc_info()[1:]
+            v = ValueError('Cannot resolve %r: %s' % (s, e))
+            v.__cause__, v.__traceback__ = e, tb
+            raise v
+
+    def ext_convert(self, value):
+        """Default converter for the ext:// protocol."""
+        return self.resolve(value)
+
+    def cfg_convert(self, value):
+        """Default converter for the cfg:// protocol."""
+        rest = value
+        m = self.WORD_PATTERN.match(rest)
+        if m is None:
+            raise ValueError("Unable to convert %r" % value)
+        else:
+            rest = rest[m.end():]
+            d = self.config[m.groups()[0]]
+            #print d, rest
+            while rest:
+                m = self.DOT_PATTERN.match(rest)
+                if m:
+                    d = d[m.groups()[0]]
+                else:
+                    m = self.INDEX_PATTERN.match(rest)
+                    if m:
+                        idx = m.groups()[0]
+                        if not self.DIGIT_PATTERN.match(idx):
+                            d = d[idx]
+                        else:
+                            try:
+                                n = int(idx) # try as number first (most likely)
+                                d = d[n]
+                            except TypeError:
+                                d = d[idx]
+                if m:
+                    rest = rest[m.end():]
+                else:
+                    raise ValueError('Unable to convert '
+                                     '%r at %r' % (value, rest))
+        #rest should be empty
+        return d
+
+    def convert(self, value):
+        """
+        Convert values to an appropriate type. dicts, lists and tuples are
+        replaced by their converting alternatives. Strings are checked to
+        see if they have a conversion format and are converted if they do.
+        """
+        if not isinstance(value, ConvertingDict) and isinstance(value, dict):
+            value = ConvertingDict(value)
+            value.configurator = self
+        elif not isinstance(value, ConvertingList) and isinstance(value, list):
+            value = ConvertingList(value)
+            value.configurator = self
+        elif not isinstance(value, ConvertingTuple) and\
+                 isinstance(value, tuple) and not hasattr(value, '_fields'):
+            value = ConvertingTuple(value)
+            value.configurator = self
+        elif isinstance(value, str): # str for py3k
+            m = self.CONVERT_PATTERN.match(value)
+            if m:
+                d = m.groupdict()
+                prefix = d['prefix']
+                converter = self.value_converters.get(prefix, None)
+                if converter:
+                    suffix = d['suffix']
+                    converter = getattr(self, converter)
+                    value = converter(suffix)
+        return value
+
+    def configure_custom(self, config):
+        """Configure an object with a user-supplied factory."""
+        c = config.pop('()')
+        if not callable(c):
+            c = self.resolve(c)
+        props = config.pop('.', None)
+        # Check for valid identifiers
+        kwargs = {k: config[k] for k in config if valid_ident(k)}
+        result = c(**kwargs)
+        if props:
+            for name, value in props.items():
+                setattr(result, name, value)
+        return result
+
+    def as_tuple(self, value):
+        """Utility function which converts lists to tuples."""
+        if isinstance(value, list):
+            value = tuple(value)
+        return value
+
+class DictConfigurator(BaseConfigurator):
+    """
+    Configure logging using a dictionary-like object to describe the
+    configuration.
+    """
+
+    def configure(self):
+        """Do the configuration."""
+
+        config = self.config
+        if 'version' not in config:
+            raise ValueError("dictionary doesn't specify a version")
+        if config['version'] != 1:
+            raise ValueError("Unsupported version: %s" % config['version'])
+        incremental = config.pop('incremental', False)
+        EMPTY_DICT = {}
+        logging._acquireLock()
+        try:
+            if incremental:
+                handlers = config.get('handlers', EMPTY_DICT)
+                for name in handlers:
+                    if name not in logging._handlers:
+                        raise ValueError('No handler found with '
+                                         'name %r'  % name)
+                    else:
+                        try:
+                            handler = logging._handlers[name]
+                            handler_config = handlers[name]
+                            level = handler_config.get('level', None)
+                            if level:
+                                handler.setLevel(logging._checkLevel(level))
+                        except Exception as e:
+                            raise ValueError('Unable to configure handler '
+                                             '%r' % name) from e
+                loggers = config.get('loggers', EMPTY_DICT)
+                for name in loggers:
+                    try:
+                        self.configure_logger(name, loggers[name], True)
+                    except Exception as e:
+                        raise ValueError('Unable to configure logger '
+                                         '%r' % name) from e
+                root = config.get('root', None)
+                if root:
+                    try:
+                        self.configure_root(root, True)
+                    except Exception as e:
+                        raise ValueError('Unable to configure root '
+                                         'logger') from e
+            else:
+                disable_existing = config.pop('disable_existing_loggers', True)
+
+                _clearExistingHandlers()
+
+                # Do formatters first - they don't refer to anything else
+                formatters = config.get('formatters', EMPTY_DICT)
+                for name in formatters:
+                    try:
+                        formatters[name] = self.configure_formatter(
+                                                            formatters[name])
+                    except Exception as e:
+                        raise ValueError('Unable to configure '
+                                         'formatter %r' % name) from e
+                # Next, do filters - they don't refer to anything else, either
+                filters = config.get('filters', EMPTY_DICT)
+                for name in filters:
+                    try:
+                        filters[name] = self.configure_filter(filters[name])
+                    except Exception as e:
+                        raise ValueError('Unable to configure '
+                                         'filter %r' % name) from e
+
+                # Next, do handlers - they refer to formatters and filters
+                # As handlers can refer to other handlers, sort the keys
+                # to allow a deterministic order of configuration
+                handlers = config.get('handlers', EMPTY_DICT)
+                deferred = []
+                for name in sorted(handlers):
+                    try:
+                        handler = self.configure_handler(handlers[name])
+                        handler.name = name
+                        handlers[name] = handler
+                    except Exception as e:
+                        if 'target not configured yet' in str(e.__cause__):
+                            deferred.append(name)
+                        else:
+                            raise ValueError('Unable to configure handler '
+                                             '%r' % name) from e
+
+                # Now do any that were deferred
+                for name in deferred:
+                    try:
+                        handler = self.configure_handler(handlers[name])
+                        handler.name = name
+                        handlers[name] = handler
+                    except Exception as e:
+                        raise ValueError('Unable to configure handler '
+                                         '%r' % name) from e
+
+                # Next, do loggers - they refer to handlers and filters
+
+                #we don't want to lose the existing loggers,
+                #since other threads may have pointers to them.
+                #existing is set to contain all existing loggers,
+                #and as we go through the new configuration we
+                #remove any which are configured. At the end,
+                #what's left in existing is the set of loggers
+                #which were in the previous configuration but
+                #which are not in the new configuration.
+                root = logging.root
+                existing = list(root.manager.loggerDict.keys())
+                #The list needs to be sorted so that we can
+                #avoid disabling child loggers of explicitly
+                #named loggers. With a sorted list it is easier
+                #to find the child loggers.
+                existing.sort()
+                #We'll keep the list of existing loggers
+                #which are children of named loggers here...
+                child_loggers = []
+                #now set up the new ones...
+                loggers = config.get('loggers', EMPTY_DICT)
+                for name in loggers:
+                    if name in existing:
+                        i = existing.index(name) + 1 # look after name
+                        prefixed = name + "."
+                        pflen = len(prefixed)
+                        num_existing = len(existing)
+                        while i < num_existing:
+                            if existing[i][:pflen] == prefixed:
+                                child_loggers.append(existing[i])
+                            i += 1
+                        existing.remove(name)
+                    try:
+                        self.configure_logger(name, loggers[name])
+                    except Exception as e:
+                        raise ValueError('Unable to configure logger '
+                                         '%r' % name) from e
+
+                #Disable any old loggers. There's no point deleting
+                #them as other threads may continue to hold references
+                #and by disabling them, you stop them doing any logging.
+                #However, don't disable children of named loggers, as that's
+                #probably not what was intended by the user.
+                #for log in existing:
+                #    logger = root.manager.loggerDict[log]
+                #    if log in child_loggers:
+                #        logger.level = logging.NOTSET
+                #        logger.handlers = []
+                #        logger.propagate = True
+                #    elif disable_existing:
+                #        logger.disabled = True
+                _handle_existing_loggers(existing, child_loggers,
+                                         disable_existing)
+
+                # And finally, do the root logger
+                root = config.get('root', None)
+                if root:
+                    try:
+                        self.configure_root(root)
+                    except Exception as e:
+                        raise ValueError('Unable to configure root '
+                                         'logger') from e
+        finally:
+            logging._releaseLock()
+
+    def configure_formatter(self, config):
+        """Configure a formatter from a dictionary."""
+        if '()' in config:
+            factory = config['()'] # for use in exception handler
+            try:
+                result = self.configure_custom(config)
+            except TypeError as te:
+                if "'format'" not in str(te):
+                    raise
+                #Name of parameter changed from fmt to format.
+                #Retry with old name.
+                #This is so that code can be used with older Python versions
+                #(e.g. by Django)
+                config['fmt'] = config.pop('format')
+                config['()'] = factory
+                result = self.configure_custom(config)
+        else:
+            fmt = config.get('format', None)
+            dfmt = config.get('datefmt', None)
+            style = config.get('style', '%')
+            cname = config.get('class', None)
+
+            if not cname:
+                c = logging.Formatter
+            else:
+                c = _resolve(cname)
+
+            # A TypeError would be raised if "validate" key is passed in with a formatter callable
+            # that does not accept "validate" as a parameter
+            if 'validate' in config:  # if user hasn't mentioned it, the default will be fine
+                result = c(fmt, dfmt, style, config['validate'])
+            else:
+                result = c(fmt, dfmt, style)
+
+        return result
+
+    def configure_filter(self, config):
+        """Configure a filter from a dictionary."""
+        if '()' in config:
+            result = self.configure_custom(config)
+        else:
+            name = config.get('name', '')
+            result = logging.Filter(name)
+        return result
+
+    def add_filters(self, filterer, filters):
+        """Add filters to a filterer from a list of names."""
+        for f in filters:
+            try:
+                filterer.addFilter(self.config['filters'][f])
+            except Exception as e:
+                raise ValueError('Unable to add filter %r' % f) from e
+
+    def configure_handler(self, config):
+        """Configure a handler from a dictionary."""
+        config_copy = dict(config)  # for restoring in case of error
+        formatter = config.pop('formatter', None)
+        if formatter:
+            try:
+                formatter = self.config['formatters'][formatter]
+            except Exception as e:
+                raise ValueError('Unable to set formatter '
+                                 '%r' % formatter) from e
+        level = config.pop('level', None)
+        filters = config.pop('filters', None)
+        if '()' in config:
+            c = config.pop('()')
+            if not callable(c):
+                c = self.resolve(c)
+            factory = c
+        else:
+            cname = config.pop('class')
+            klass = self.resolve(cname)
+            #Special case for handler which refers to another handler
+            if issubclass(klass, logging.handlers.MemoryHandler) and\
+                'target' in config:
+                try:
+                    th = self.config['handlers'][config['target']]
+                    if not isinstance(th, logging.Handler):
+                        config.update(config_copy)  # restore for deferred cfg
+                        raise TypeError('target not configured yet')
+                    config['target'] = th
+                except Exception as e:
+                    raise ValueError('Unable to set target handler '
+                                     '%r' % config['target']) from e
+            elif issubclass(klass, logging.handlers.SMTPHandler) and\
+                'mailhost' in config:
+                config['mailhost'] = self.as_tuple(config['mailhost'])
+            elif issubclass(klass, logging.handlers.SysLogHandler) and\
+                'address' in config:
+                config['address'] = self.as_tuple(config['address'])
+            factory = klass
+        props = config.pop('.', None)
+        kwargs = {k: config[k] for k in config if valid_ident(k)}
+        try:
+            result = factory(**kwargs)
+        except TypeError as te:
+            if "'stream'" not in str(te):
+                raise
+            #The argument name changed from strm to stream
+            #Retry with old name.
+            #This is so that code can be used with older Python versions
+            #(e.g. by Django)
+            kwargs['strm'] = kwargs.pop('stream')
+            result = factory(**kwargs)
+        if formatter:
+            result.setFormatter(formatter)
+        if level is not None:
+            result.setLevel(logging._checkLevel(level))
+        if filters:
+            self.add_filters(result, filters)
+        if props:
+            for name, value in props.items():
+                setattr(result, name, value)
+        return result
+
+    def add_handlers(self, logger, handlers):
+        """Add handlers to a logger from a list of names."""
+        for h in handlers:
+            try:
+                logger.addHandler(self.config['handlers'][h])
+            except Exception as e:
+                raise ValueError('Unable to add handler %r' % h) from e
+
+    def common_logger_config(self, logger, config, incremental=False):
+        """
+        Perform configuration which is common to root and non-root loggers.
+        """
+        level = config.get('level', None)
+        if level is not None:
+            logger.setLevel(logging._checkLevel(level))
+        if not incremental:
+            #Remove any existing handlers
+            for h in logger.handlers[:]:
+                logger.removeHandler(h)
+            handlers = config.get('handlers', None)
+            if handlers:
+                self.add_handlers(logger, handlers)
+            filters = config.get('filters', None)
+            if filters:
+                self.add_filters(logger, filters)
+
+    def configure_logger(self, name, config, incremental=False):
+        """Configure a non-root logger from a dictionary."""
+        logger = logging.getLogger(name)
+        self.common_logger_config(logger, config, incremental)
+        logger.disabled = False
+        propagate = config.get('propagate', None)
+        if propagate is not None:
+            logger.propagate = propagate
+
+    def configure_root(self, config, incremental=False):
+        """Configure a root logger from a dictionary."""
+        root = logging.getLogger()
+        self.common_logger_config(root, config, incremental)
+
+dictConfigClass = DictConfigurator
+
+def dictConfig(config):
+    """Configure logging using a dictionary."""
+    dictConfigClass(config).configure()
+
+
+def listen(port=DEFAULT_LOGGING_CONFIG_PORT, verify=None):
+    """
+    Start up a socket server on the specified port, and listen for new
+    configurations.
+
+    These will be sent as a file suitable for processing by fileConfig().
+    Returns a Thread object on which you can call start() to start the server,
+    and which you can join() when appropriate. To stop the server, call
+    stopListening().
+
+    Use the ``verify`` argument to verify any bytes received across the wire
+    from a client. If specified, it should be a callable which receives a
+    single argument - the bytes of configuration data received across the
+    network - and it should return either ``None``, to indicate that the
+    passed in bytes could not be verified and should be discarded, or a
+    byte string which is then passed to the configuration machinery as
+    normal. Note that you can return transformed bytes, e.g. by decrypting
+    the bytes passed in.
+    """
+
+    class ConfigStreamHandler(StreamRequestHandler):
+        """
+        Handler for a logging configuration request.
+
+        It expects a completely new logging configuration and uses fileConfig
+        to install it.
+        """
+        def handle(self):
+            """
+            Handle a request.
+
+            Each request is expected to be a 4-byte length, packed using
+            struct.pack(">L", n), followed by the config file.
+            Uses fileConfig() to do the grunt work.
+            """
+            try:
+                conn = self.connection
+                chunk = conn.recv(4)
+                if len(chunk) == 4:
+                    slen = struct.unpack(">L", chunk)[0]
+                    chunk = self.connection.recv(slen)
+                    while len(chunk) < slen:
+                        chunk = chunk + conn.recv(slen - len(chunk))
+                    if self.server.verify is not None:
+                        chunk = self.server.verify(chunk)
+                    if chunk is not None:   # verified, can process
+                        chunk = chunk.decode("utf-8")
+                        try:
+                            import json
+                            d =json.loads(chunk)
+                            assert isinstance(d, dict)
+                            dictConfig(d)
+                        except Exception:
+                            #Apply new configuration.
+
+                            file = io.StringIO(chunk)
+                            try:
+                                fileConfig(file)
+                            except Exception:
+                                traceback.print_exc()
+                    if self.server.ready:
+                        self.server.ready.set()
+            except OSError as e:
+                if e.errno != RESET_ERROR:
+                    raise
+
+    class ConfigSocketReceiver(ThreadingTCPServer):
+        """
+        A simple TCP socket-based logging config receiver.
+        """
+
+        allow_reuse_address = 1
+
+        def __init__(self, host='localhost', port=DEFAULT_LOGGING_CONFIG_PORT,
+                     handler=None, ready=None, verify=None):
+            ThreadingTCPServer.__init__(self, (host, port), handler)
+            logging._acquireLock()
+            self.abort = 0
+            logging._releaseLock()
+            self.timeout = 1
+            self.ready = ready
+            self.verify = verify
+
+        def serve_until_stopped(self):
+            import select
+            abort = 0
+            while not abort:
+                rd, wr, ex = select.select([self.socket.fileno()],
+                                           [], [],
+                                           self.timeout)
+                if rd:
+                    self.handle_request()
+                logging._acquireLock()
+                abort = self.abort
+                logging._releaseLock()
+            self.server_close()
+
+    class Server(threading.Thread):
+
+        def __init__(self, rcvr, hdlr, port, verify):
+            super(Server, self).__init__()
+            self.rcvr = rcvr
+            self.hdlr = hdlr
+            self.port = port
+            self.verify = verify
+            self.ready = threading.Event()
+
+        def run(self):
+            server = self.rcvr(port=self.port, handler=self.hdlr,
+                               ready=self.ready,
+                               verify=self.verify)
+            if self.port == 0:
+                self.port = server.server_address[1]
+            self.ready.set()
+            global _listener
+            logging._acquireLock()
+            _listener = server
+            logging._releaseLock()
+            server.serve_until_stopped()
+
+    return Server(ConfigSocketReceiver, ConfigStreamHandler, port, verify)
+
+def stopListening():
+    """
+    Stop the listening server which was created with a call to listen().
+    """
+    global _listener
+    logging._acquireLock()
+    try:
+        if _listener:
+            _listener.abort = 1
+            _listener = None
+    finally:
+        logging._releaseLock()

valley/lib/python3.10/logging/handlers.py

@@ -0,0 +1,1587 @@
+# Copyright 2001-2021 by Vinay Sajip. All Rights Reserved.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose and without fee is hereby granted,
+# provided that the above copyright notice appear in all copies and that
+# both that copyright notice and this permission notice appear in
+# supporting documentation, and that the name of Vinay Sajip
+# not be used in advertising or publicity pertaining to distribution
+# of the software without specific, written prior permission.
+# VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+# VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+"""
+Additional handlers for the logging package for Python. The core package is
+based on PEP 282 and comments thereto in comp.lang.python.
+
+Copyright (C) 2001-2021 Vinay Sajip. All Rights Reserved.
+
+To use, simply 'import logging.handlers' and log away!
+"""
+
+import io, logging, socket, os, pickle, struct, time, re
+from stat import ST_DEV, ST_INO, ST_MTIME
+import queue
+import threading
+import copy
+
+#
+# Some constants...
+#
+
+DEFAULT_TCP_LOGGING_PORT    = 9020
+DEFAULT_UDP_LOGGING_PORT    = 9021
+DEFAULT_HTTP_LOGGING_PORT   = 9022
+DEFAULT_SOAP_LOGGING_PORT   = 9023
+SYSLOG_UDP_PORT             = 514
+SYSLOG_TCP_PORT             = 514
+
+_MIDNIGHT = 24 * 60 * 60  # number of seconds in a day
+
+class BaseRotatingHandler(logging.FileHandler):
+    """
+    Base class for handlers that rotate log files at a certain point.
+    Not meant to be instantiated directly.  Instead, use RotatingFileHandler
+    or TimedRotatingFileHandler.
+    """
+    namer = None
+    rotator = None
+
+    def __init__(self, filename, mode, encoding=None, delay=False, errors=None):
+        """
+        Use the specified filename for streamed logging
+        """
+        logging.FileHandler.__init__(self, filename, mode=mode,
+                                     encoding=encoding, delay=delay,
+                                     errors=errors)
+        self.mode = mode
+        self.encoding = encoding
+        self.errors = errors
+
+    def emit(self, record):
+        """
+        Emit a record.
+
+        Output the record to the file, catering for rollover as described
+        in doRollover().
+        """
+        try:
+            if self.shouldRollover(record):
+                self.doRollover()
+            logging.FileHandler.emit(self, record)
+        except Exception:
+            self.handleError(record)
+
+    def rotation_filename(self, default_name):
+        """
+        Modify the filename of a log file when rotating.
+
+        This is provided so that a custom filename can be provided.
+
+        The default implementation calls the 'namer' attribute of the
+        handler, if it's callable, passing the default name to
+        it. If the attribute isn't callable (the default is None), the name
+        is returned unchanged.
+
+        :param default_name: The default name for the log file.
+        """
+        if not callable(self.namer):
+            result = default_name
+        else:
+            result = self.namer(default_name)
+        return result
+
+    def rotate(self, source, dest):
+        """
+        When rotating, rotate the current log.
+
+        The default implementation calls the 'rotator' attribute of the
+        handler, if it's callable, passing the source and dest arguments to
+        it. If the attribute isn't callable (the default is None), the source
+        is simply renamed to the destination.
+
+        :param source: The source filename. This is normally the base
+                       filename, e.g. 'test.log'
+        :param dest:   The destination filename. This is normally
+                       what the source is rotated to, e.g. 'test.log.1'.
+        """
+        if not callable(self.rotator):
+            # Issue 18940: A file may not have been created if delay is True.
+            if os.path.exists(source):
+                os.rename(source, dest)
+        else:
+            self.rotator(source, dest)
+
+class RotatingFileHandler(BaseRotatingHandler):
+    """
+    Handler for logging to a set of files, which switches from one file
+    to the next when the current file reaches a certain size.
+    """
+    def __init__(self, filename, mode='a', maxBytes=0, backupCount=0,
+                 encoding=None, delay=False, errors=None):
+        """
+        Open the specified file and use it as the stream for logging.
+
+        By default, the file grows indefinitely. You can specify particular
+        values of maxBytes and backupCount to allow the file to rollover at
+        a predetermined size.
+
+        Rollover occurs whenever the current log file is nearly maxBytes in
+        length. If backupCount is >= 1, the system will successively create
+        new files with the same pathname as the base file, but with extensions
+        ".1", ".2" etc. appended to it. For example, with a backupCount of 5
+        and a base file name of "app.log", you would get "app.log",
+        "app.log.1", "app.log.2", ... through to "app.log.5". The file being
+        written to is always "app.log" - when it gets filled up, it is closed
+        and renamed to "app.log.1", and if files "app.log.1", "app.log.2" etc.
+        exist, then they are renamed to "app.log.2", "app.log.3" etc.
+        respectively.
+
+        If maxBytes is zero, rollover never occurs.
+        """
+        # If rotation/rollover is wanted, it doesn't make sense to use another
+        # mode. If for example 'w' were specified, then if there were multiple
+        # runs of the calling application, the logs from previous runs would be
+        # lost if the 'w' is respected, because the log file would be truncated
+        # on each run.
+        if maxBytes > 0:
+            mode = 'a'
+        if "b" not in mode:
+            encoding = io.text_encoding(encoding)
+        BaseRotatingHandler.__init__(self, filename, mode, encoding=encoding,
+                                     delay=delay, errors=errors)
+        self.maxBytes = maxBytes
+        self.backupCount = backupCount
+
+    def doRollover(self):
+        """
+        Do a rollover, as described in __init__().
+        """
+        if self.stream:
+            self.stream.close()
+            self.stream = None
+        if self.backupCount > 0:
+            for i in range(self.backupCount - 1, 0, -1):
+                sfn = self.rotation_filename("%s.%d" % (self.baseFilename, i))
+                dfn = self.rotation_filename("%s.%d" % (self.baseFilename,
+                                                        i + 1))
+                if os.path.exists(sfn):
+                    if os.path.exists(dfn):
+                        os.remove(dfn)
+                    os.rename(sfn, dfn)
+            dfn = self.rotation_filename(self.baseFilename + ".1")
+            if os.path.exists(dfn):
+                os.remove(dfn)
+            self.rotate(self.baseFilename, dfn)
+        if not self.delay:
+            self.stream = self._open()
+
+    def shouldRollover(self, record):
+        """
+        Determine if rollover should occur.
+
+        Basically, see if the supplied record would cause the file to exceed
+        the size limit we have.
+        """
+        # See bpo-45401: Never rollover anything other than regular files
+        if os.path.exists(self.baseFilename) and not os.path.isfile(self.baseFilename):
+            return False
+        if self.stream is None:                 # delay was set...
+            self.stream = self._open()
+        if self.maxBytes > 0:                   # are we rolling over?
+            msg = "%s\n" % self.format(record)
+            self.stream.seek(0, 2)  #due to non-posix-compliant Windows feature
+            if self.stream.tell() + len(msg) >= self.maxBytes:
+                return True
+        return False
+
+class TimedRotatingFileHandler(BaseRotatingHandler):
+    """
+    Handler for logging to a file, rotating the log file at certain timed
+    intervals.
+
+    If backupCount is > 0, when rollover is done, no more than backupCount
+    files are kept - the oldest ones are deleted.
+    """
+    def __init__(self, filename, when='h', interval=1, backupCount=0,
+                 encoding=None, delay=False, utc=False, atTime=None,
+                 errors=None):
+        encoding = io.text_encoding(encoding)
+        BaseRotatingHandler.__init__(self, filename, 'a', encoding=encoding,
+                                     delay=delay, errors=errors)
+        self.when = when.upper()
+        self.backupCount = backupCount
+        self.utc = utc
+        self.atTime = atTime
+        # Calculate the real rollover interval, which is just the number of
+        # seconds between rollovers.  Also set the filename suffix used when
+        # a rollover occurs.  Current 'when' events supported:
+        # S - Seconds
+        # M - Minutes
+        # H - Hours
+        # D - Days
+        # midnight - roll over at midnight
+        # W{0-6} - roll over on a certain day; 0 - Monday
+        #
+        # Case of the 'when' specifier is not important; lower or upper case
+        # will work.
+        if self.when == 'S':
+            self.interval = 1 # one second
+            self.suffix = "%Y-%m-%d_%H-%M-%S"
+            self.extMatch = r"^\d{4}-\d{2}-\d{2}_\d{2}-\d{2}-\d{2}(\.\w+)?$"
+        elif self.when == 'M':
+            self.interval = 60 # one minute
+            self.suffix = "%Y-%m-%d_%H-%M"
+            self.extMatch = r"^\d{4}-\d{2}-\d{2}_\d{2}-\d{2}(\.\w+)?$"
+        elif self.when == 'H':
+            self.interval = 60 * 60 # one hour
+            self.suffix = "%Y-%m-%d_%H"
+            self.extMatch = r"^\d{4}-\d{2}-\d{2}_\d{2}(\.\w+)?$"
+        elif self.when == 'D' or self.when == 'MIDNIGHT':
+            self.interval = 60 * 60 * 24 # one day
+            self.suffix = "%Y-%m-%d"
+            self.extMatch = r"^\d{4}-\d{2}-\d{2}(\.\w+)?$"
+        elif self.when.startswith('W'):
+            self.interval = 60 * 60 * 24 * 7 # one week
+            if len(self.when) != 2:
+                raise ValueError("You must specify a day for weekly rollover from 0 to 6 (0 is Monday): %s" % self.when)
+            if self.when[1] < '0' or self.when[1] > '6':
+                raise ValueError("Invalid day specified for weekly rollover: %s" % self.when)
+            self.dayOfWeek = int(self.when[1])
+            self.suffix = "%Y-%m-%d"
+            self.extMatch = r"^\d{4}-\d{2}-\d{2}(\.\w+)?$"
+        else:
+            raise ValueError("Invalid rollover interval specified: %s" % self.when)
+
+        self.extMatch = re.compile(self.extMatch, re.ASCII)
+        self.interval = self.interval * interval # multiply by units requested
+        # The following line added because the filename passed in could be a
+        # path object (see Issue #27493), but self.baseFilename will be a string
+        filename = self.baseFilename
+        if os.path.exists(filename):
+            t = os.stat(filename)[ST_MTIME]
+        else:
+            t = int(time.time())
+        self.rolloverAt = self.computeRollover(t)
+
+    def computeRollover(self, currentTime):
+        """
+        Work out the rollover time based on the specified time.
+        """
+        result = currentTime + self.interval
+        # If we are rolling over at midnight or weekly, then the interval is already known.
+        # What we need to figure out is WHEN the next interval is.  In other words,
+        # if you are rolling over at midnight, then your base interval is 1 day,
+        # but you want to start that one day clock at midnight, not now.  So, we
+        # have to fudge the rolloverAt value in order to trigger the first rollover
+        # at the right time.  After that, the regular interval will take care of
+        # the rest.  Note that this code doesn't care about leap seconds. :)
+        if self.when == 'MIDNIGHT' or self.when.startswith('W'):
+            # This could be done with less code, but I wanted it to be clear
+            if self.utc:
+                t = time.gmtime(currentTime)
+            else:
+                t = time.localtime(currentTime)
+            currentHour = t[3]
+            currentMinute = t[4]
+            currentSecond = t[5]
+            currentDay = t[6]
+            # r is the number of seconds left between now and the next rotation
+            if self.atTime is None:
+                rotate_ts = _MIDNIGHT
+            else:
+                rotate_ts = ((self.atTime.hour * 60 + self.atTime.minute)*60 +
+                    self.atTime.second)
+
+            r = rotate_ts - ((currentHour * 60 + currentMinute) * 60 +
+                currentSecond)
+            if r < 0:
+                # Rotate time is before the current time (for example when
+                # self.rotateAt is 13:45 and it now 14:15), rotation is
+                # tomorrow.
+                r += _MIDNIGHT
+                currentDay = (currentDay + 1) % 7
+            result = currentTime + r
+            # If we are rolling over on a certain day, add in the number of days until
+            # the next rollover, but offset by 1 since we just calculated the time
+            # until the next day starts.  There are three cases:
+            # Case 1) The day to rollover is today; in this case, do nothing
+            # Case 2) The day to rollover is further in the interval (i.e., today is
+            #         day 2 (Wednesday) and rollover is on day 6 (Sunday).  Days to
+            #         next rollover is simply 6 - 2 - 1, or 3.
+            # Case 3) The day to rollover is behind us in the interval (i.e., today
+            #         is day 5 (Saturday) and rollover is on day 3 (Thursday).
+            #         Days to rollover is 6 - 5 + 3, or 4.  In this case, it's the
+            #         number of days left in the current week (1) plus the number
+            #         of days in the next week until the rollover day (3).
+            # The calculations described in 2) and 3) above need to have a day added.
+            # This is because the above time calculation takes us to midnight on this
+            # day, i.e. the start of the next day.
+            if self.when.startswith('W'):
+                day = currentDay # 0 is Monday
+                if day != self.dayOfWeek:
+                    if day < self.dayOfWeek:
+                        daysToWait = self.dayOfWeek - day
+                    else:
+                        daysToWait = 6 - day + self.dayOfWeek + 1
+                    newRolloverAt = result + (daysToWait * (60 * 60 * 24))
+                    if not self.utc:
+                        dstNow = t[-1]
+                        dstAtRollover = time.localtime(newRolloverAt)[-1]
+                        if dstNow != dstAtRollover:
+                            if not dstNow:  # DST kicks in before next rollover, so we need to deduct an hour
+                                addend = -3600
+                            else:           # DST bows out before next rollover, so we need to add an hour
+                                addend = 3600
+                            newRolloverAt += addend
+                    result = newRolloverAt
+        return result
+
+    def shouldRollover(self, record):
+        """
+        Determine if rollover should occur.
+
+        record is not used, as we are just comparing times, but it is needed so
+        the method signatures are the same
+        """
+        t = int(time.time())
+        if t >= self.rolloverAt:
+            # See #89564: Never rollover anything other than regular files
+            if os.path.exists(self.baseFilename) and not os.path.isfile(self.baseFilename):
+                # The file is not a regular file, so do not rollover, but do
+                # set the next rollover time to avoid repeated checks.
+                self.rolloverAt = self.computeRollover(t)
+                return False
+
+            return True
+        return False
+
+    def getFilesToDelete(self):
+        """
+        Determine the files to delete when rolling over.
+
+        More specific than the earlier method, which just used glob.glob().
+        """
+        dirName, baseName = os.path.split(self.baseFilename)
+        fileNames = os.listdir(dirName)
+        result = []
+        # See bpo-44753: Don't use the extension when computing the prefix.
+        n, e = os.path.splitext(baseName)
+        prefix = n + '.'
+        plen = len(prefix)
+        for fileName in fileNames:
+            if self.namer is None:
+                # Our files will always start with baseName
+                if not fileName.startswith(baseName):
+                    continue
+            else:
+                # Our files could be just about anything after custom naming, but
+                # likely candidates are of the form
+                # foo.log.DATETIME_SUFFIX or foo.DATETIME_SUFFIX.log
+                if (not fileName.startswith(baseName) and fileName.endswith(e) and
+                    len(fileName) > (plen + 1) and not fileName[plen+1].isdigit()):
+                    continue
+
+            if fileName[:plen] == prefix:
+                suffix = fileName[plen:]
+                # See bpo-45628: The date/time suffix could be anywhere in the
+                # filename
+                parts = suffix.split('.')
+                for part in parts:
+                    if self.extMatch.match(part):
+                        result.append(os.path.join(dirName, fileName))
+                        break
+        if len(result) < self.backupCount:
+            result = []
+        else:
+            result.sort()
+            result = result[:len(result) - self.backupCount]
+        return result
+
+    def doRollover(self):
+        """
+        do a rollover; in this case, a date/time stamp is appended to the filename
+        when the rollover happens.  However, you want the file to be named for the
+        start of the interval, not the current time.  If there is a backup count,
+        then we have to get a list of matching filenames, sort them and remove
+        the one with the oldest suffix.
+        """
+        if self.stream:
+            self.stream.close()
+            self.stream = None
+        # get the time that this sequence started at and make it a TimeTuple
+        currentTime = int(time.time())
+        dstNow = time.localtime(currentTime)[-1]
+        t = self.rolloverAt - self.interval
+        if self.utc:
+            timeTuple = time.gmtime(t)
+        else:
+            timeTuple = time.localtime(t)
+            dstThen = timeTuple[-1]
+            if dstNow != dstThen:
+                if dstNow:
+                    addend = 3600
+                else:
+                    addend = -3600
+                timeTuple = time.localtime(t + addend)
+        dfn = self.rotation_filename(self.baseFilename + "." +
+                                     time.strftime(self.suffix, timeTuple))
+        if os.path.exists(dfn):
+            os.remove(dfn)
+        self.rotate(self.baseFilename, dfn)
+        if self.backupCount > 0:
+            for s in self.getFilesToDelete():
+                os.remove(s)
+        if not self.delay:
+            self.stream = self._open()
+        newRolloverAt = self.computeRollover(currentTime)
+        while newRolloverAt <= currentTime:
+            newRolloverAt = newRolloverAt + self.interval
+        #If DST changes and midnight or weekly rollover, adjust for this.
+        if (self.when == 'MIDNIGHT' or self.when.startswith('W')) and not self.utc:
+            dstAtRollover = time.localtime(newRolloverAt)[-1]
+            if dstNow != dstAtRollover:
+                if not dstNow:  # DST kicks in before next rollover, so we need to deduct an hour
+                    addend = -3600
+                else:           # DST bows out before next rollover, so we need to add an hour
+                    addend = 3600
+                newRolloverAt += addend
+        self.rolloverAt = newRolloverAt
+
+class WatchedFileHandler(logging.FileHandler):
+    """
+    A handler for logging to a file, which watches the file
+    to see if it has changed while in use. This can happen because of
+    usage of programs such as newsyslog and logrotate which perform
+    log file rotation. This handler, intended for use under Unix,
+    watches the file to see if it has changed since the last emit.
+    (A file has changed if its device or inode have changed.)
+    If it has changed, the old file stream is closed, and the file
+    opened to get a new stream.
+
+    This handler is not appropriate for use under Windows, because
+    under Windows open files cannot be moved or renamed - logging
+    opens the files with exclusive locks - and so there is no need
+    for such a handler. Furthermore, ST_INO is not supported under
+    Windows; stat always returns zero for this value.
+
+    This handler is based on a suggestion and patch by Chad J.
+    Schroeder.
+    """
+    def __init__(self, filename, mode='a', encoding=None, delay=False,
+                 errors=None):
+        if "b" not in mode:
+            encoding = io.text_encoding(encoding)
+        logging.FileHandler.__init__(self, filename, mode=mode,
+                                     encoding=encoding, delay=delay,
+                                     errors=errors)
+        self.dev, self.ino = -1, -1
+        self._statstream()
+
+    def _statstream(self):
+        if self.stream:
+            sres = os.fstat(self.stream.fileno())
+            self.dev, self.ino = sres[ST_DEV], sres[ST_INO]
+
+    def reopenIfNeeded(self):
+        """
+        Reopen log file if needed.
+
+        Checks if the underlying file has changed, and if it
+        has, close the old stream and reopen the file to get the
+        current stream.
+        """
+        # Reduce the chance of race conditions by stat'ing by path only
+        # once and then fstat'ing our new fd if we opened a new log stream.
+        # See issue #14632: Thanks to John Mulligan for the problem report
+        # and patch.
+        try:
+            # stat the file by path, checking for existence
+            sres = os.stat(self.baseFilename)
+        except FileNotFoundError:
+            sres = None
+        # compare file system stat with that of our stream file handle
+        if not sres or sres[ST_DEV] != self.dev or sres[ST_INO] != self.ino:
+            if self.stream is not None:
+                # we have an open file handle, clean it up
+                self.stream.flush()
+                self.stream.close()
+                self.stream = None  # See Issue #21742: _open () might fail.
+                # open a new file handle and get new stat info from that fd
+                self.stream = self._open()
+                self._statstream()
+
+    def emit(self, record):
+        """
+        Emit a record.
+
+        If underlying file has changed, reopen the file before emitting the
+        record to it.
+        """
+        self.reopenIfNeeded()
+        logging.FileHandler.emit(self, record)
+
+
+class SocketHandler(logging.Handler):
+    """
+    A handler class which writes logging records, in pickle format, to
+    a streaming socket. The socket is kept open across logging calls.
+    If the peer resets it, an attempt is made to reconnect on the next call.
+    The pickle which is sent is that of the LogRecord's attribute dictionary
+    (__dict__), so that the receiver does not need to have the logging module
+    installed in order to process the logging event.
+
+    To unpickle the record at the receiving end into a LogRecord, use the
+    makeLogRecord function.
+    """
+
+    def __init__(self, host, port):
+        """
+        Initializes the handler with a specific host address and port.
+
+        When the attribute *closeOnError* is set to True - if a socket error
+        occurs, the socket is silently closed and then reopened on the next
+        logging call.
+        """
+        logging.Handler.__init__(self)
+        self.host = host
+        self.port = port
+        if port is None:
+            self.address = host
+        else:
+            self.address = (host, port)
+        self.sock = None
+        self.closeOnError = False
+        self.retryTime = None
+        #
+        # Exponential backoff parameters.
+        #
+        self.retryStart = 1.0
+        self.retryMax = 30.0
+        self.retryFactor = 2.0
+
+    def makeSocket(self, timeout=1):
+        """
+        A factory method which allows subclasses to define the precise
+        type of socket they want.
+        """
+        if self.port is not None:
+            result = socket.create_connection(self.address, timeout=timeout)
+        else:
+            result = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+            result.settimeout(timeout)
+            try:
+                result.connect(self.address)
+            except OSError:
+                result.close()  # Issue 19182
+                raise
+        return result
+
+    def createSocket(self):
+        """
+        Try to create a socket, using an exponential backoff with
+        a max retry time. Thanks to Robert Olson for the original patch
+        (SF #815911) which has been slightly refactored.
+        """
+        now = time.time()
+        # Either retryTime is None, in which case this
+        # is the first time back after a disconnect, or
+        # we've waited long enough.
+        if self.retryTime is None:
+            attempt = True
+        else:
+            attempt = (now >= self.retryTime)
+        if attempt:
+            try:
+                self.sock = self.makeSocket()
+                self.retryTime = None # next time, no delay before trying
+            except OSError:
+                #Creation failed, so set the retry time and return.
+                if self.retryTime is None:
+                    self.retryPeriod = self.retryStart
+                else:
+                    self.retryPeriod = self.retryPeriod * self.retryFactor
+                    if self.retryPeriod > self.retryMax:
+                        self.retryPeriod = self.retryMax
+                self.retryTime = now + self.retryPeriod
+
+    def send(self, s):
+        """
+        Send a pickled string to the socket.
+
+        This function allows for partial sends which can happen when the
+        network is busy.
+        """
+        if self.sock is None:
+            self.createSocket()
+        #self.sock can be None either because we haven't reached the retry
+        #time yet, or because we have reached the retry time and retried,
+        #but are still unable to connect.
+        if self.sock:
+            try:
+                self.sock.sendall(s)
+            except OSError: #pragma: no cover
+                self.sock.close()
+                self.sock = None  # so we can call createSocket next time
+
+    def makePickle(self, record):
+        """
+        Pickles the record in binary format with a length prefix, and
+        returns it ready for transmission across the socket.
+        """
+        ei = record.exc_info
+        if ei:
+            # just to get traceback text into record.exc_text ...
+            dummy = self.format(record)
+        # See issue #14436: If msg or args are objects, they may not be
+        # available on the receiving end. So we convert the msg % args
+        # to a string, save it as msg and zap the args.
+        d = dict(record.__dict__)
+        d['msg'] = record.getMessage()
+        d['args'] = None
+        d['exc_info'] = None
+        # Issue #25685: delete 'message' if present: redundant with 'msg'
+        d.pop('message', None)
+        s = pickle.dumps(d, 1)
+        slen = struct.pack(">L", len(s))
+        return slen + s
+
+    def handleError(self, record):
+        """
+        Handle an error during logging.
+
+        An error has occurred during logging. Most likely cause -
+        connection lost. Close the socket so that we can retry on the
+        next event.
+        """
+        if self.closeOnError and self.sock:
+            self.sock.close()
+            self.sock = None        #try to reconnect next time
+        else:
+            logging.Handler.handleError(self, record)
+
+    def emit(self, record):
+        """
+        Emit a record.
+
+        Pickles the record and writes it to the socket in binary format.
+        If there is an error with the socket, silently drop the packet.
+        If there was a problem with the socket, re-establishes the
+        socket.
+        """
+        try:
+            s = self.makePickle(record)
+            self.send(s)
+        except Exception:
+            self.handleError(record)
+
+    def close(self):
+        """
+        Closes the socket.
+        """
+        self.acquire()
+        try:
+            sock = self.sock
+            if sock:
+                self.sock = None
+                sock.close()
+            logging.Handler.close(self)
+        finally:
+            self.release()
+
+class DatagramHandler(SocketHandler):
+    """
+    A handler class which writes logging records, in pickle format, to
+    a datagram socket.  The pickle which is sent is that of the LogRecord's
+    attribute dictionary (__dict__), so that the receiver does not need to
+    have the logging module installed in order to process the logging event.
+
+    To unpickle the record at the receiving end into a LogRecord, use the
+    makeLogRecord function.
+
+    """
+    def __init__(self, host, port):
+        """
+        Initializes the handler with a specific host address and port.
+        """
+        SocketHandler.__init__(self, host, port)
+        self.closeOnError = False
+
+    def makeSocket(self):
+        """
+        The factory method of SocketHandler is here overridden to create
+        a UDP socket (SOCK_DGRAM).
+        """
+        if self.port is None:
+            family = socket.AF_UNIX
+        else:
+            family = socket.AF_INET
+        s = socket.socket(family, socket.SOCK_DGRAM)
+        return s
+
+    def send(self, s):
+        """
+        Send a pickled string to a socket.
+
+        This function no longer allows for partial sends which can happen
+        when the network is busy - UDP does not guarantee delivery and
+        can deliver packets out of sequence.
+        """
+        if self.sock is None:
+            self.createSocket()
+        self.sock.sendto(s, self.address)
+
+class SysLogHandler(logging.Handler):
+    """
+    A handler class which sends formatted logging records to a syslog
+    server. Based on Sam Rushing's syslog module:
+    http://www.nightmare.com/squirl/python-ext/misc/syslog.py
+    Contributed by Nicolas Untz (after which minor refactoring changes
+    have been made).
+    """
+
+    # from <linux/sys/syslog.h>:
+    # ======================================================================
+    # priorities/facilities are encoded into a single 32-bit quantity, where
+    # the bottom 3 bits are the priority (0-7) and the top 28 bits are the
+    # facility (0-big number). Both the priorities and the facilities map
+    # roughly one-to-one to strings in the syslogd(8) source code.  This
+    # mapping is included in this file.
+    #
+    # priorities (these are ordered)
+
+    LOG_EMERG     = 0       #  system is unusable
+    LOG_ALERT     = 1       #  action must be taken immediately
+    LOG_CRIT      = 2       #  critical conditions
+    LOG_ERR       = 3       #  error conditions
+    LOG_WARNING   = 4       #  warning conditions
+    LOG_NOTICE    = 5       #  normal but significant condition
+    LOG_INFO      = 6       #  informational
+    LOG_DEBUG     = 7       #  debug-level messages
+
+    #  facility codes
+    LOG_KERN      = 0       #  kernel messages
+    LOG_USER      = 1       #  random user-level messages
+    LOG_MAIL      = 2       #  mail system
+    LOG_DAEMON    = 3       #  system daemons
+    LOG_AUTH      = 4       #  security/authorization messages
+    LOG_SYSLOG    = 5       #  messages generated internally by syslogd
+    LOG_LPR       = 6       #  line printer subsystem
+    LOG_NEWS      = 7       #  network news subsystem
+    LOG_UUCP      = 8       #  UUCP subsystem
+    LOG_CRON      = 9       #  clock daemon
+    LOG_AUTHPRIV  = 10      #  security/authorization messages (private)
+    LOG_FTP       = 11      #  FTP daemon
+    LOG_NTP       = 12      #  NTP subsystem
+    LOG_SECURITY  = 13      #  Log audit
+    LOG_CONSOLE   = 14      #  Log alert
+    LOG_SOLCRON   = 15      #  Scheduling daemon (Solaris)
+
+    #  other codes through 15 reserved for system use
+    LOG_LOCAL0    = 16      #  reserved for local use
+    LOG_LOCAL1    = 17      #  reserved for local use
+    LOG_LOCAL2    = 18      #  reserved for local use
+    LOG_LOCAL3    = 19      #  reserved for local use
+    LOG_LOCAL4    = 20      #  reserved for local use
+    LOG_LOCAL5    = 21      #  reserved for local use
+    LOG_LOCAL6    = 22      #  reserved for local use
+    LOG_LOCAL7    = 23      #  reserved for local use
+
+    priority_names = {
+        "alert":    LOG_ALERT,
+        "crit":     LOG_CRIT,
+        "critical": LOG_CRIT,
+        "debug":    LOG_DEBUG,
+        "emerg":    LOG_EMERG,
+        "err":      LOG_ERR,
+        "error":    LOG_ERR,        #  DEPRECATED
+        "info":     LOG_INFO,
+        "notice":   LOG_NOTICE,
+        "panic":    LOG_EMERG,      #  DEPRECATED
+        "warn":     LOG_WARNING,    #  DEPRECATED
+        "warning":  LOG_WARNING,
+        }
+
+    facility_names = {
+        "auth":         LOG_AUTH,
+        "authpriv":     LOG_AUTHPRIV,
+        "console":      LOG_CONSOLE,
+        "cron":         LOG_CRON,
+        "daemon":       LOG_DAEMON,
+        "ftp":          LOG_FTP,
+        "kern":         LOG_KERN,
+        "lpr":          LOG_LPR,
+        "mail":         LOG_MAIL,
+        "news":         LOG_NEWS,
+        "ntp":          LOG_NTP,
+        "security":     LOG_SECURITY,
+        "solaris-cron": LOG_SOLCRON,
+        "syslog":       LOG_SYSLOG,
+        "user":         LOG_USER,
+        "uucp":         LOG_UUCP,
+        "local0":       LOG_LOCAL0,
+        "local1":       LOG_LOCAL1,
+        "local2":       LOG_LOCAL2,
+        "local3":       LOG_LOCAL3,
+        "local4":       LOG_LOCAL4,
+        "local5":       LOG_LOCAL5,
+        "local6":       LOG_LOCAL6,
+        "local7":       LOG_LOCAL7,
+        }
+
+    #The map below appears to be trivially lowercasing the key. However,
+    #there's more to it than meets the eye - in some locales, lowercasing
+    #gives unexpected results. See SF #1524081: in the Turkish locale,
+    #"INFO".lower() != "info"
+    priority_map = {
+        "DEBUG" : "debug",
+        "INFO" : "info",
+        "WARNING" : "warning",
+        "ERROR" : "error",
+        "CRITICAL" : "critical"
+    }
+
+    def __init__(self, address=('localhost', SYSLOG_UDP_PORT),
+                 facility=LOG_USER, socktype=None):
+        """
+        Initialize a handler.
+
+        If address is specified as a string, a UNIX socket is used. To log to a
+        local syslogd, "SysLogHandler(address="/dev/log")" can be used.
+        If facility is not specified, LOG_USER is used. If socktype is
+        specified as socket.SOCK_DGRAM or socket.SOCK_STREAM, that specific
+        socket type will be used. For Unix sockets, you can also specify a
+        socktype of None, in which case socket.SOCK_DGRAM will be used, falling
+        back to socket.SOCK_STREAM.
+        """
+        logging.Handler.__init__(self)
+
+        self.address = address
+        self.facility = facility
+        self.socktype = socktype
+
+        if isinstance(address, str):
+            self.unixsocket = True
+            # Syslog server may be unavailable during handler initialisation.
+            # C's openlog() function also ignores connection errors.
+            # Moreover, we ignore these errors while logging, so it not worse
+            # to ignore it also here.
+            try:
+                self._connect_unixsocket(address)
+            except OSError:
+                pass
+        else:
+            self.unixsocket = False
+            if socktype is None:
+                socktype = socket.SOCK_DGRAM
+            host, port = address
+            ress = socket.getaddrinfo(host, port, 0, socktype)
+            if not ress:
+                raise OSError("getaddrinfo returns an empty list")
+            for res in ress:
+                af, socktype, proto, _, sa = res
+                err = sock = None
+                try:
+                    sock = socket.socket(af, socktype, proto)
+                    if socktype == socket.SOCK_STREAM:
+                        sock.connect(sa)
+                    break
+                except OSError as exc:
+                    err = exc
+                    if sock is not None:
+                        sock.close()
+            if err is not None:
+                raise err
+            self.socket = sock
+            self.socktype = socktype
+
+    def _connect_unixsocket(self, address):
+        use_socktype = self.socktype
+        if use_socktype is None:
+            use_socktype = socket.SOCK_DGRAM
+        self.socket = socket.socket(socket.AF_UNIX, use_socktype)
+        try:
+            self.socket.connect(address)
+            # it worked, so set self.socktype to the used type
+            self.socktype = use_socktype
+        except OSError:
+            self.socket.close()
+            if self.socktype is not None:
+                # user didn't specify falling back, so fail
+                raise
+            use_socktype = socket.SOCK_STREAM
+            self.socket = socket.socket(socket.AF_UNIX, use_socktype)
+            try:
+                self.socket.connect(address)
+                # it worked, so set self.socktype to the used type
+                self.socktype = use_socktype
+            except OSError:
+                self.socket.close()
+                raise
+
+    def encodePriority(self, facility, priority):
+        """
+        Encode the facility and priority. You can pass in strings or
+        integers - if strings are passed, the facility_names and
+        priority_names mapping dictionaries are used to convert them to
+        integers.
+        """
+        if isinstance(facility, str):
+            facility = self.facility_names[facility]
+        if isinstance(priority, str):
+            priority = self.priority_names[priority]
+        return (facility << 3) | priority
+
+    def close(self):
+        """
+        Closes the socket.
+        """
+        self.acquire()
+        try:
+            self.socket.close()
+            logging.Handler.close(self)
+        finally:
+            self.release()
+
+    def mapPriority(self, levelName):
+        """
+        Map a logging level name to a key in the priority_names map.
+        This is useful in two scenarios: when custom levels are being
+        used, and in the case where you can't do a straightforward
+        mapping by lowercasing the logging level name because of locale-
+        specific issues (see SF #1524081).
+        """
+        return self.priority_map.get(levelName, "warning")
+
+    ident = ''          # prepended to all messages
+    append_nul = True   # some old syslog daemons expect a NUL terminator
+
+    def emit(self, record):
+        """
+        Emit a record.
+
+        The record is formatted, and then sent to the syslog server. If
+        exception information is present, it is NOT sent to the server.
+        """
+        try:
+            msg = self.format(record)
+            if self.ident:
+                msg = self.ident + msg
+            if self.append_nul:
+                msg += '\000'
+
+            # We need to convert record level to lowercase, maybe this will
+            # change in the future.
+            prio = '<%d>' % self.encodePriority(self.facility,
+                                                self.mapPriority(record.levelname))
+            prio = prio.encode('utf-8')
+            # Message is a string. Convert to bytes as required by RFC 5424
+            msg = msg.encode('utf-8')
+            msg = prio + msg
+            if self.unixsocket:
+                try:
+                    self.socket.send(msg)
+                except OSError:
+                    self.socket.close()
+                    self._connect_unixsocket(self.address)
+                    self.socket.send(msg)
+            elif self.socktype == socket.SOCK_DGRAM:
+                self.socket.sendto(msg, self.address)
+            else:
+                self.socket.sendall(msg)
+        except Exception:
+            self.handleError(record)
+
+class SMTPHandler(logging.Handler):
+    """
+    A handler class which sends an SMTP email for each logging event.
+    """
+    def __init__(self, mailhost, fromaddr, toaddrs, subject,
+                 credentials=None, secure=None, timeout=5.0):
+        """
+        Initialize the handler.
+
+        Initialize the instance with the from and to addresses and subject
+        line of the email. To specify a non-standard SMTP port, use the
+        (host, port) tuple format for the mailhost argument. To specify
+        authentication credentials, supply a (username, password) tuple
+        for the credentials argument. To specify the use of a secure
+        protocol (TLS), pass in a tuple for the secure argument. This will
+        only be used when authentication credentials are supplied. The tuple
+        will be either an empty tuple, or a single-value tuple with the name
+        of a keyfile, or a 2-value tuple with the names of the keyfile and
+        certificate file. (This tuple is passed to the `starttls` method).
+        A timeout in seconds can be specified for the SMTP connection (the
+        default is one second).
+        """
+        logging.Handler.__init__(self)
+        if isinstance(mailhost, (list, tuple)):
+            self.mailhost, self.mailport = mailhost
+        else:
+            self.mailhost, self.mailport = mailhost, None
+        if isinstance(credentials, (list, tuple)):
+            self.username, self.password = credentials
+        else:
+            self.username = None
+        self.fromaddr = fromaddr
+        if isinstance(toaddrs, str):
+            toaddrs = [toaddrs]
+        self.toaddrs = toaddrs
+        self.subject = subject
+        self.secure = secure
+        self.timeout = timeout
+
+    def getSubject(self, record):
+        """
+        Determine the subject for the email.
+
+        If you want to specify a subject line which is record-dependent,
+        override this method.
+        """
+        return self.subject
+
+    def emit(self, record):
+        """
+        Emit a record.
+
+        Format the record and send it to the specified addressees.
+        """
+        try:
+            import smtplib
+            from email.message import EmailMessage
+            import email.utils
+
+            port = self.mailport
+            if not port:
+                port = smtplib.SMTP_PORT
+            smtp = smtplib.SMTP(self.mailhost, port, timeout=self.timeout)
+            msg = EmailMessage()
+            msg['From'] = self.fromaddr
+            msg['To'] = ','.join(self.toaddrs)
+            msg['Subject'] = self.getSubject(record)
+            msg['Date'] = email.utils.localtime()
+            msg.set_content(self.format(record))
+            if self.username:
+                if self.secure is not None:
+                    smtp.ehlo()
+                    smtp.starttls(*self.secure)
+                    smtp.ehlo()
+                smtp.login(self.username, self.password)
+            smtp.send_message(msg)
+            smtp.quit()
+        except Exception:
+            self.handleError(record)
+
+class NTEventLogHandler(logging.Handler):
+    """
+    A handler class which sends events to the NT Event Log. Adds a
+    registry entry for the specified application name. If no dllname is
+    provided, win32service.pyd (which contains some basic message
+    placeholders) is used. Note that use of these placeholders will make
+    your event logs big, as the entire message source is held in the log.
+    If you want slimmer logs, you have to pass in the name of your own DLL
+    which contains the message definitions you want to use in the event log.
+    """
+    def __init__(self, appname, dllname=None, logtype="Application"):
+        logging.Handler.__init__(self)
+        try:
+            import win32evtlogutil, win32evtlog
+            self.appname = appname
+            self._welu = win32evtlogutil
+            if not dllname:
+                dllname = os.path.split(self._welu.__file__)
+                dllname = os.path.split(dllname[0])
+                dllname = os.path.join(dllname[0], r'win32service.pyd')
+            self.dllname = dllname
+            self.logtype = logtype
+            # Administrative privileges are required to add a source to the registry.
+            # This may not be available for a user that just wants to add to an
+            # existing source - handle this specific case.
+            try:
+                self._welu.AddSourceToRegistry(appname, dllname, logtype)
+            except Exception as e:
+                # This will probably be a pywintypes.error. Only raise if it's not
+                # an "access denied" error, else let it pass
+                if getattr(e, 'winerror', None) != 5:  # not access denied
+                    raise
+            self.deftype = win32evtlog.EVENTLOG_ERROR_TYPE
+            self.typemap = {
+                logging.DEBUG   : win32evtlog.EVENTLOG_INFORMATION_TYPE,
+                logging.INFO    : win32evtlog.EVENTLOG_INFORMATION_TYPE,
+                logging.WARNING : win32evtlog.EVENTLOG_WARNING_TYPE,
+                logging.ERROR   : win32evtlog.EVENTLOG_ERROR_TYPE,
+                logging.CRITICAL: win32evtlog.EVENTLOG_ERROR_TYPE,
+         }
+        except ImportError:
+            print("The Python Win32 extensions for NT (service, event "\
+                        "logging) appear not to be available.")
+            self._welu = None
+
+    def getMessageID(self, record):
+        """
+        Return the message ID for the event record. If you are using your
+        own messages, you could do this by having the msg passed to the
+        logger being an ID rather than a formatting string. Then, in here,
+        you could use a dictionary lookup to get the message ID. This
+        version returns 1, which is the base message ID in win32service.pyd.
+        """
+        return 1
+
+    def getEventCategory(self, record):
+        """
+        Return the event category for the record.
+
+        Override this if you want to specify your own categories. This version
+        returns 0.
+        """
+        return 0
+
+    def getEventType(self, record):
+        """
+        Return the event type for the record.
+
+        Override this if you want to specify your own types. This version does
+        a mapping using the handler's typemap attribute, which is set up in
+        __init__() to a dictionary which contains mappings for DEBUG, INFO,
+        WARNING, ERROR and CRITICAL. If you are using your own levels you will
+        either need to override this method or place a suitable dictionary in
+        the handler's typemap attribute.
+        """
+        return self.typemap.get(record.levelno, self.deftype)
+
+    def emit(self, record):
+        """
+        Emit a record.
+
+        Determine the message ID, event category and event type. Then
+        log the message in the NT event log.
+        """
+        if self._welu:
+            try:
+                id = self.getMessageID(record)
+                cat = self.getEventCategory(record)
+                type = self.getEventType(record)
+                msg = self.format(record)
+                self._welu.ReportEvent(self.appname, id, cat, type, [msg])
+            except Exception:
+                self.handleError(record)
+
+    def close(self):
+        """
+        Clean up this handler.
+
+        You can remove the application name from the registry as a
+        source of event log entries. However, if you do this, you will
+        not be able to see the events as you intended in the Event Log
+        Viewer - it needs to be able to access the registry to get the
+        DLL name.
+        """
+        #self._welu.RemoveSourceFromRegistry(self.appname, self.logtype)
+        logging.Handler.close(self)
+
+class HTTPHandler(logging.Handler):
+    """
+    A class which sends records to a web server, using either GET or
+    POST semantics.
+    """
+    def __init__(self, host, url, method="GET", secure=False, credentials=None,
+                 context=None):
+        """
+        Initialize the instance with the host, the request URL, and the method
+        ("GET" or "POST")
+        """
+        logging.Handler.__init__(self)
+        method = method.upper()
+        if method not in ["GET", "POST"]:
+            raise ValueError("method must be GET or POST")
+        if not secure and context is not None:
+            raise ValueError("context parameter only makes sense "
+                             "with secure=True")
+        self.host = host
+        self.url = url
+        self.method = method
+        self.secure = secure
+        self.credentials = credentials
+        self.context = context
+
+    def mapLogRecord(self, record):
+        """
+        Default implementation of mapping the log record into a dict
+        that is sent as the CGI data. Overwrite in your class.
+        Contributed by Franz Glasner.
+        """
+        return record.__dict__
+
+    def getConnection(self, host, secure):
+        """
+        get a HTTP[S]Connection.
+
+        Override when a custom connection is required, for example if
+        there is a proxy.
+        """
+        import http.client
+        if secure:
+            connection = http.client.HTTPSConnection(host, context=self.context)
+        else:
+            connection = http.client.HTTPConnection(host)
+        return connection
+
+    def emit(self, record):
+        """
+        Emit a record.
+
+        Send the record to the web server as a percent-encoded dictionary
+        """
+        try:
+            import urllib.parse
+            host = self.host
+            h = self.getConnection(host, self.secure)
+            url = self.url
+            data = urllib.parse.urlencode(self.mapLogRecord(record))
+            if self.method == "GET":
+                if (url.find('?') >= 0):
+                    sep = '&'
+                else:
+                    sep = '?'
+                url = url + "%c%s" % (sep, data)
+            h.putrequest(self.method, url)
+            # support multiple hosts on one IP address...
+            # need to strip optional :port from host, if present
+            i = host.find(":")
+            if i >= 0:
+                host = host[:i]
+            # See issue #30904: putrequest call above already adds this header
+            # on Python 3.x.
+            # h.putheader("Host", host)
+            if self.method == "POST":
+                h.putheader("Content-type",
+                            "application/x-www-form-urlencoded")
+                h.putheader("Content-length", str(len(data)))
+            if self.credentials:
+                import base64
+                s = ('%s:%s' % self.credentials).encode('utf-8')
+                s = 'Basic ' + base64.b64encode(s).strip().decode('ascii')
+                h.putheader('Authorization', s)
+            h.endheaders()
+            if self.method == "POST":
+                h.send(data.encode('utf-8'))
+            h.getresponse()    #can't do anything with the result
+        except Exception:
+            self.handleError(record)
+
+class BufferingHandler(logging.Handler):
+    """
+  A handler class which buffers logging records in memory. Whenever each
+  record is added to the buffer, a check is made to see if the buffer should
+  be flushed. If it should, then flush() is expected to do what's needed.
+    """
+    def __init__(self, capacity):
+        """
+        Initialize the handler with the buffer size.
+        """
+        logging.Handler.__init__(self)
+        self.capacity = capacity
+        self.buffer = []
+
+    def shouldFlush(self, record):
+        """
+        Should the handler flush its buffer?
+
+        Returns true if the buffer is up to capacity. This method can be
+        overridden to implement custom flushing strategies.
+        """
+        return (len(self.buffer) >= self.capacity)
+
+    def emit(self, record):
+        """
+        Emit a record.
+
+        Append the record. If shouldFlush() tells us to, call flush() to process
+        the buffer.
+        """
+        self.buffer.append(record)
+        if self.shouldFlush(record):
+            self.flush()
+
+    def flush(self):
+        """
+        Override to implement custom flushing behaviour.
+
+        This version just zaps the buffer to empty.
+        """
+        self.acquire()
+        try:
+            self.buffer.clear()
+        finally:
+            self.release()
+
+    def close(self):
+        """
+        Close the handler.
+
+        This version just flushes and chains to the parent class' close().
+        """
+        try:
+            self.flush()
+        finally:
+            logging.Handler.close(self)
+
+class MemoryHandler(BufferingHandler):
+    """
+    A handler class which buffers logging records in memory, periodically
+    flushing them to a target handler. Flushing occurs whenever the buffer
+    is full, or when an event of a certain severity or greater is seen.
+    """
+    def __init__(self, capacity, flushLevel=logging.ERROR, target=None,
+                 flushOnClose=True):
+        """
+        Initialize the handler with the buffer size, the level at which
+        flushing should occur and an optional target.
+
+        Note that without a target being set either here or via setTarget(),
+        a MemoryHandler is no use to anyone!
+
+        The ``flushOnClose`` argument is ``True`` for backward compatibility
+        reasons - the old behaviour is that when the handler is closed, the
+        buffer is flushed, even if the flush level hasn't been exceeded nor the
+        capacity exceeded. To prevent this, set ``flushOnClose`` to ``False``.
+        """
+        BufferingHandler.__init__(self, capacity)
+        self.flushLevel = flushLevel
+        self.target = target
+        # See Issue #26559 for why this has been added
+        self.flushOnClose = flushOnClose
+
+    def shouldFlush(self, record):
+        """
+        Check for buffer full or a record at the flushLevel or higher.
+        """
+        return (len(self.buffer) >= self.capacity) or \
+                (record.levelno >= self.flushLevel)
+
+    def setTarget(self, target):
+        """
+        Set the target handler for this handler.
+        """
+        self.acquire()
+        try:
+            self.target = target
+        finally:
+            self.release()
+
+    def flush(self):
+        """
+        For a MemoryHandler, flushing means just sending the buffered
+        records to the target, if there is one. Override if you want
+        different behaviour.
+
+        The record buffer is also cleared by this operation.
+        """
+        self.acquire()
+        try:
+            if self.target:
+                for record in self.buffer:
+                    self.target.handle(record)
+                self.buffer.clear()
+        finally:
+            self.release()
+
+    def close(self):
+        """
+        Flush, if appropriately configured, set the target to None and lose the
+        buffer.
+        """
+        try:
+            if self.flushOnClose:
+                self.flush()
+        finally:
+            self.acquire()
+            try:
+                self.target = None
+                BufferingHandler.close(self)
+            finally:
+                self.release()
+
+
+class QueueHandler(logging.Handler):
+    """
+    This handler sends events to a queue. Typically, it would be used together
+    with a multiprocessing Queue to centralise logging to file in one process
+    (in a multi-process application), so as to avoid file write contention
+    between processes.
+
+    This code is new in Python 3.2, but this class can be copy pasted into
+    user code for use with earlier Python versions.
+    """
+
+    def __init__(self, queue):
+        """
+        Initialise an instance, using the passed queue.
+        """
+        logging.Handler.__init__(self)
+        self.queue = queue
+
+    def enqueue(self, record):
+        """
+        Enqueue a record.
+
+        The base implementation uses put_nowait. You may want to override
+        this method if you want to use blocking, timeouts or custom queue
+        implementations.
+        """
+        self.queue.put_nowait(record)
+
+    def prepare(self, record):
+        """
+        Prepares a record for queuing. The object returned by this method is
+        enqueued.
+
+        The base implementation formats the record to merge the message
+        and arguments, and removes unpickleable items from the record
+        in-place.
+
+        You might want to override this method if you want to convert
+        the record to a dict or JSON string, or send a modified copy
+        of the record while leaving the original intact.
+        """
+        # The format operation gets traceback text into record.exc_text
+        # (if there's exception data), and also returns the formatted
+        # message. We can then use this to replace the original
+        # msg + args, as these might be unpickleable. We also zap the
+        # exc_info, exc_text and stack_info attributes, as they are no longer
+        # needed and, if not None, will typically not be pickleable.
+        msg = self.format(record)
+        # bpo-35726: make copy of record to avoid affecting other handlers in the chain.
+        record = copy.copy(record)
+        record.message = msg
+        record.msg = msg
+        record.args = None
+        record.exc_info = None
+        record.exc_text = None
+        record.stack_info = None
+        return record
+
+    def emit(self, record):
+        """
+        Emit a record.
+
+        Writes the LogRecord to the queue, preparing it for pickling first.
+        """
+        try:
+            self.enqueue(self.prepare(record))
+        except Exception:
+            self.handleError(record)
+
+
+class QueueListener(object):
+    """
+    This class implements an internal threaded listener which watches for
+    LogRecords being added to a queue, removes them and passes them to a
+    list of handlers for processing.
+    """
+    _sentinel = None
+
+    def __init__(self, queue, *handlers, respect_handler_level=False):
+        """
+        Initialise an instance with the specified queue and
+        handlers.
+        """
+        self.queue = queue
+        self.handlers = handlers
+        self._thread = None
+        self.respect_handler_level = respect_handler_level
+
+    def dequeue(self, block):
+        """
+        Dequeue a record and return it, optionally blocking.
+
+        The base implementation uses get. You may want to override this method
+        if you want to use timeouts or work with custom queue implementations.
+        """
+        return self.queue.get(block)
+
+    def start(self):
+        """
+        Start the listener.
+
+        This starts up a background thread to monitor the queue for
+        LogRecords to process.
+        """
+        self._thread = t = threading.Thread(target=self._monitor)
+        t.daemon = True
+        t.start()
+
+    def prepare(self, record):
+        """
+        Prepare a record for handling.
+
+        This method just returns the passed-in record. You may want to
+        override this method if you need to do any custom marshalling or
+        manipulation of the record before passing it to the handlers.
+        """
+        return record
+
+    def handle(self, record):
+        """
+        Handle a record.
+
+        This just loops through the handlers offering them the record
+        to handle.
+        """
+        record = self.prepare(record)
+        for handler in self.handlers:
+            if not self.respect_handler_level:
+                process = True
+            else:
+                process = record.levelno >= handler.level
+            if process:
+                handler.handle(record)
+
+    def _monitor(self):
+        """
+        Monitor the queue for records, and ask the handler
+        to deal with them.
+
+        This method runs on a separate, internal thread.
+        The thread will terminate if it sees a sentinel object in the queue.
+        """
+        q = self.queue
+        has_task_done = hasattr(q, 'task_done')
+        while True:
+            try:
+                record = self.dequeue(True)
+                if record is self._sentinel:
+                    if has_task_done:
+                        q.task_done()
+                    break
+                self.handle(record)
+                if has_task_done:
+                    q.task_done()
+            except queue.Empty:
+                break
+
+    def enqueue_sentinel(self):
+        """
+        This is used to enqueue the sentinel record.
+
+        The base implementation uses put_nowait. You may want to override this
+        method if you want to use timeouts or work with custom queue
+        implementations.
+        """
+        self.queue.put_nowait(self._sentinel)
+
+    def stop(self):
+        """
+        Stop the listener.
+
+        This asks the thread to terminate, and then waits for it to do so.
+        Note that if you don't call this before your application exits, there
+        may be some records still left on the queue, which won't be processed.
+        """
+        self.enqueue_sentinel()
+        self._thread.join()
+        self._thread = None

valley/lib/python3.10/turtledemo/__init__.py

@@ -0,0 +1,14 @@
+"""
+    --------------------------------------
+        About this viewer
+    --------------------------------------
+
+    Tiny demo viewer to view turtle graphics example scripts.
+
+    Quickly and dirtyly assembled by Gregor Lingl.
+    June, 2006
+
+    For more information see: turtledemo - Help
+
+    Have fun!
+"""

valley/lib/python3.10/turtledemo/__main__.py

@@ -0,0 +1,398 @@
+#!/usr/bin/env python3
+
+"""
+  ----------------------------------------------
+      turtleDemo - Help
+  ----------------------------------------------
+
+  This document has two sections:
+
+  (1) How to use the demo viewer
+  (2) How to add your own demos to the demo repository
+
+
+  (1) How to use the demo viewer.
+
+  Select a demoscript from the example menu.
+  The (syntax colored) source code appears in the left
+  source code window. IT CANNOT BE EDITED, but ONLY VIEWED!
+
+  The demo viewer windows can be resized. The divider between text
+  and canvas can be moved by grabbing it with the mouse. The text font
+  size can be changed from the menu and with Control/Command '-'/'+'.
+  It can also be changed on most systems with Control-mousewheel
+  when the mouse is over the text.
+
+  Press START button to start the demo.
+  Stop execution by pressing the STOP button.
+  Clear screen by pressing the CLEAR button.
+  Restart by pressing the START button again.
+
+  SPECIAL demos, such as clock.py are those which run EVENTDRIVEN.
+
+      Press START button to start the demo.
+
+      - Until the EVENTLOOP is entered everything works
+      as in an ordinary demo script.
+
+      - When the EVENTLOOP is entered, you control the
+      application by using the mouse and/or keys (or it's
+      controlled by some timer events)
+      To stop it you can and must press the STOP button.
+
+      While the EVENTLOOP is running, the examples menu is disabled.
+
+      - Only after having pressed the STOP button, you may
+      restart it or choose another example script.
+
+   * * * * * * * *
+   In some rare situations there may occur interferences/conflicts
+   between events concerning the demo script and those concerning the
+   demo-viewer. (They run in the same process.) Strange behaviour may be
+   the consequence and in the worst case you must close and restart the
+   viewer.
+   * * * * * * * *
+
+
+   (2) How to add your own demos to the demo repository
+
+   - Place the file in the same directory as turtledemo/__main__.py
+     IMPORTANT! When imported, the demo should not modify the system
+     by calling functions in other modules, such as sys, tkinter, or
+     turtle. Global variables should be initialized in main().
+
+   - The code must contain a main() function which will
+     be executed by the viewer (see provided example scripts).
+     It may return a string which will be displayed in the Label below
+     the source code window (when execution has finished.)
+
+   - In order to run mydemo.py by itself, such as during development,
+     add the following at the end of the file:
+
+    if __name__ == '__main__':
+        main()
+        mainloop()  # keep window open
+
+    python -m turtledemo.mydemo  # will then run it
+
+   - If the demo is EVENT DRIVEN, main must return the string
+     "EVENTLOOP". This informs the demo viewer that the script is
+     still running and must be stopped by the user!
+
+     If an "EVENTLOOP" demo runs by itself, as with clock, which uses
+     ontimer, or minimal_hanoi, which loops by recursion, then the
+     code should catch the turtle.Terminator exception that will be
+     raised when the user presses the STOP button.  (Paint is not such
+     a demo; it only acts in response to mouse clicks and movements.)
+"""
+import sys
+import os
+
+from tkinter import *
+from idlelib.colorizer import ColorDelegator, color_config
+from idlelib.percolator import Percolator
+from idlelib.textview import view_text
+from turtledemo import __doc__ as about_turtledemo
+
+import turtle
+
+demo_dir = os.path.dirname(os.path.abspath(__file__))
+darwin = sys.platform == 'darwin'
+
+STARTUP = 1
+READY = 2
+RUNNING = 3
+DONE = 4
+EVENTDRIVEN = 5
+
+menufont = ("Arial", 12, NORMAL)
+btnfont = ("Arial", 12, 'bold')
+txtfont = ['Lucida Console', 10, 'normal']
+
+MINIMUM_FONT_SIZE = 6
+MAXIMUM_FONT_SIZE = 100
+font_sizes = [8, 9, 10, 11, 12, 14, 18, 20, 22, 24, 30]
+
+def getExampleEntries():
+    return [entry[:-3] for entry in os.listdir(demo_dir) if
+            entry.endswith(".py") and entry[0] != '_']
+
+help_entries = (  # (help_label,  help_doc)
+    ('Turtledemo help', __doc__),
+    ('About turtledemo', about_turtledemo),
+    ('About turtle module', turtle.__doc__),
+    )
+
+
+class DemoWindow(object):
+
+    def __init__(self, filename=None):
+        self.root = root = turtle._root = Tk()
+        root.title('Python turtle-graphics examples')
+        root.wm_protocol("WM_DELETE_WINDOW", self._destroy)
+
+        if darwin:
+            import subprocess
+            # Make sure we are the currently activated OS X application
+            # so that our menu bar appears.
+            subprocess.run(
+                    [
+                        'osascript',
+                        '-e', 'tell application "System Events"',
+                        '-e', 'set frontmost of the first process whose '
+                              'unix id is {} to true'.format(os.getpid()),
+                        '-e', 'end tell',
+                    ],
+                    stderr=subprocess.DEVNULL,
+                    stdout=subprocess.DEVNULL,)
+
+        root.grid_rowconfigure(0, weight=1)
+        root.grid_columnconfigure(0, weight=1)
+        root.grid_columnconfigure(1, minsize=90, weight=1)
+        root.grid_columnconfigure(2, minsize=90, weight=1)
+        root.grid_columnconfigure(3, minsize=90, weight=1)
+
+        self.mBar = Menu(root, relief=RAISED, borderwidth=2)
+        self.mBar.add_cascade(menu=self.makeLoadDemoMenu(self.mBar),
+                              label='Examples', underline=0)
+        self.mBar.add_cascade(menu=self.makeFontMenu(self.mBar),
+                              label='Fontsize', underline=0)
+        self.mBar.add_cascade(menu=self.makeHelpMenu(self.mBar),
+                              label='Help', underline=0)
+        root['menu'] = self.mBar
+
+        pane = PanedWindow(orient=HORIZONTAL, sashwidth=5,
+                           sashrelief=SOLID, bg='#ddd')
+        pane.add(self.makeTextFrame(pane))
+        pane.add(self.makeGraphFrame(pane))
+        pane.grid(row=0, columnspan=4, sticky='news')
+
+        self.output_lbl = Label(root, height= 1, text=" --- ", bg="#ddf",
+                                font=("Arial", 16, 'normal'), borderwidth=2,
+                                relief=RIDGE)
+        if darwin:  # Leave Mac button colors alone - #44254.
+            self.start_btn = Button(root, text=" START ", font=btnfont,
+                                    fg='#00cc22', command=self.startDemo)
+            self.stop_btn = Button(root, text=" STOP ", font=btnfont,
+                                   fg='#00cc22', command=self.stopIt)
+            self.clear_btn = Button(root, text=" CLEAR ", font=btnfont,
+                                    fg='#00cc22', command = self.clearCanvas)
+        else:
+            self.start_btn = Button(root, text=" START ", font=btnfont,
+                                    fg="white", disabledforeground = "#fed",
+                                    command=self.startDemo)
+            self.stop_btn = Button(root, text=" STOP ", font=btnfont,
+                                   fg="white", disabledforeground = "#fed",
+                                   command=self.stopIt)
+            self.clear_btn = Button(root, text=" CLEAR ", font=btnfont,
+                                    fg="white", disabledforeground="#fed",
+                                    command = self.clearCanvas)
+        self.output_lbl.grid(row=1, column=0, sticky='news', padx=(0,5))
+        self.start_btn.grid(row=1, column=1, sticky='ew')
+        self.stop_btn.grid(row=1, column=2, sticky='ew')
+        self.clear_btn.grid(row=1, column=3, sticky='ew')
+
+        Percolator(self.text).insertfilter(ColorDelegator())
+        self.dirty = False
+        self.exitflag = False
+        if filename:
+            self.loadfile(filename)
+        self.configGUI(DISABLED, DISABLED, DISABLED,
+                       "Choose example from menu", "black")
+        self.state = STARTUP
+
+
+    def onResize(self, event):
+        cwidth = self._canvas.winfo_width()
+        cheight = self._canvas.winfo_height()
+        self._canvas.xview_moveto(0.5*(self.canvwidth-cwidth)/self.canvwidth)
+        self._canvas.yview_moveto(0.5*(self.canvheight-cheight)/self.canvheight)
+
+    def makeTextFrame(self, root):
+        self.text_frame = text_frame = Frame(root)
+        self.text = text = Text(text_frame, name='text', padx=5,
+                                wrap='none', width=45)
+        color_config(text)
+
+        self.vbar = vbar = Scrollbar(text_frame, name='vbar')
+        vbar['command'] = text.yview
+        vbar.pack(side=LEFT, fill=Y)
+        self.hbar = hbar = Scrollbar(text_frame, name='hbar', orient=HORIZONTAL)
+        hbar['command'] = text.xview
+        hbar.pack(side=BOTTOM, fill=X)
+        text['yscrollcommand'] = vbar.set
+        text['xscrollcommand'] = hbar.set
+
+        text['font'] = tuple(txtfont)
+        shortcut = 'Command' if darwin else 'Control'
+        text.bind_all('<%s-minus>' % shortcut, self.decrease_size)
+        text.bind_all('<%s-underscore>' % shortcut, self.decrease_size)
+        text.bind_all('<%s-equal>' % shortcut, self.increase_size)
+        text.bind_all('<%s-plus>' % shortcut, self.increase_size)
+        text.bind('<Control-MouseWheel>', self.update_mousewheel)
+        text.bind('<Control-Button-4>', self.increase_size)
+        text.bind('<Control-Button-5>', self.decrease_size)
+
+        text.pack(side=LEFT, fill=BOTH, expand=1)
+        return text_frame
+
+    def makeGraphFrame(self, root):
+        turtle._Screen._root = root
+        self.canvwidth = 1000
+        self.canvheight = 800
+        turtle._Screen._canvas = self._canvas = canvas = turtle.ScrolledCanvas(
+                root, 800, 600, self.canvwidth, self.canvheight)
+        canvas.adjustScrolls()
+        canvas._rootwindow.bind('<Configure>', self.onResize)
+        canvas._canvas['borderwidth'] = 0
+
+        self.screen = _s_ = turtle.Screen()
+        turtle.TurtleScreen.__init__(_s_, _s_._canvas)
+        self.scanvas = _s_._canvas
+        turtle.RawTurtle.screens = [_s_]
+        return canvas
+
+    def set_txtsize(self, size):
+        txtfont[1] = size
+        self.text['font'] = tuple(txtfont)
+        self.output_lbl['text'] = 'Font size %d' % size
+
+    def decrease_size(self, dummy=None):
+        self.set_txtsize(max(txtfont[1] - 1, MINIMUM_FONT_SIZE))
+        return 'break'
+
+    def increase_size(self, dummy=None):
+        self.set_txtsize(min(txtfont[1] + 1, MAXIMUM_FONT_SIZE))
+        return 'break'
+
+    def update_mousewheel(self, event):
+        # For wheel up, event.delta = 120 on Windows, -1 on darwin.
+        # X-11 sends Control-Button-4 event instead.
+        if (event.delta < 0) == (not darwin):
+            return self.decrease_size()
+        else:
+            return self.increase_size()
+
+    def configGUI(self, start, stop, clear, txt="", color="blue"):
+        if darwin:  # Leave Mac button colors alone - #44254.
+            self.start_btn.config(state=start)
+            self.stop_btn.config(state=stop)
+            self.clear_btn.config(state=clear)
+        else:
+            self.start_btn.config(state=start,
+                                  bg="#d00" if start == NORMAL else "#fca")
+            self.stop_btn.config(state=stop,
+                                 bg="#d00" if stop == NORMAL else "#fca")
+            self.clear_btn.config(state=clear,
+                                  bg="#d00" if clear == NORMAL else "#fca")
+        self.output_lbl.config(text=txt, fg=color)
+
+    def makeLoadDemoMenu(self, master):
+        menu = Menu(master)
+
+        for entry in getExampleEntries():
+            def load(entry=entry):
+                self.loadfile(entry)
+            menu.add_command(label=entry, underline=0,
+                             font=menufont, command=load)
+        return menu
+
+    def makeFontMenu(self, master):
+        menu = Menu(master)
+        menu.add_command(label="Decrease (C-'-')", command=self.decrease_size,
+                         font=menufont)
+        menu.add_command(label="Increase (C-'+')", command=self.increase_size,
+                         font=menufont)
+        menu.add_separator()
+
+        for size in font_sizes:
+            def resize(size=size):
+                self.set_txtsize(size)
+            menu.add_command(label=str(size), underline=0,
+                             font=menufont, command=resize)
+        return menu
+
+    def makeHelpMenu(self, master):
+        menu = Menu(master)
+
+        for help_label, help_file in help_entries:
+            def show(help_label=help_label, help_file=help_file):
+                view_text(self.root, help_label, help_file)
+            menu.add_command(label=help_label, font=menufont, command=show)
+        return menu
+
+    def refreshCanvas(self):
+        if self.dirty:
+            self.screen.clear()
+            self.dirty=False
+
+    def loadfile(self, filename):
+        self.clearCanvas()
+        turtle.TurtleScreen._RUNNING = False
+        modname = 'turtledemo.' + filename
+        __import__(modname)
+        self.module = sys.modules[modname]
+        with open(self.module.__file__, 'r') as f:
+            chars = f.read()
+        self.text.delete("1.0", "end")
+        self.text.insert("1.0", chars)
+        self.root.title(filename + " - a Python turtle graphics example")
+        self.configGUI(NORMAL, DISABLED, DISABLED,
+                       "Press start button", "red")
+        self.state = READY
+
+    def startDemo(self):
+        self.refreshCanvas()
+        self.dirty = True
+        turtle.TurtleScreen._RUNNING = True
+        self.configGUI(DISABLED, NORMAL, DISABLED,
+                       "demo running...", "black")
+        self.screen.clear()
+        self.screen.mode("standard")
+        self.state = RUNNING
+
+        try:
+            result = self.module.main()
+            if result == "EVENTLOOP":
+                self.state = EVENTDRIVEN
+            else:
+                self.state = DONE
+        except turtle.Terminator:
+            if self.root is None:
+                return
+            self.state = DONE
+            result = "stopped!"
+        if self.state == DONE:
+            self.configGUI(NORMAL, DISABLED, NORMAL,
+                           result)
+        elif self.state == EVENTDRIVEN:
+            self.exitflag = True
+            self.configGUI(DISABLED, NORMAL, DISABLED,
+                           "use mouse/keys or STOP", "red")
+
+    def clearCanvas(self):
+        self.refreshCanvas()
+        self.screen._delete("all")
+        self.scanvas.config(cursor="")
+        self.configGUI(NORMAL, DISABLED, DISABLED)
+
+    def stopIt(self):
+        if self.exitflag:
+            self.clearCanvas()
+            self.exitflag = False
+            self.configGUI(NORMAL, DISABLED, DISABLED,
+                           "STOPPED!", "red")
+        turtle.TurtleScreen._RUNNING = False
+
+    def _destroy(self):
+        turtle.TurtleScreen._RUNNING = False
+        self.root.destroy()
+        self.root = None
+
+
+def main():
+    demo = DemoWindow()
+    demo.root.mainloop()
+
+if __name__ == '__main__':
+    main()

valley/lib/python3.10/turtledemo/bytedesign.py

@@ -0,0 +1,161 @@
+#!/usr/bin/env python3
+"""      turtle-example-suite:
+
+        tdemo_bytedesign.py
+
+An example adapted from the example-suite
+of PythonCard's turtle graphics.
+
+It's based on an article in BYTE magazine
+Problem Solving with Logo: Using Turtle
+Graphics to Redraw a Design
+November 1982, p. 118 - 134
+
+-------------------------------------------
+
+Due to the statement
+
+t.delay(0)
+
+in line 152, which sets the animation delay
+to 0, this animation runs in "line per line"
+mode as fast as possible.
+"""
+
+from turtle import Turtle, mainloop
+from time import perf_counter as clock
+
+# wrapper for any additional drawing routines
+# that need to know about each other
+class Designer(Turtle):
+
+    def design(self, homePos, scale):
+        self.up()
+        for i in range(5):
+            self.forward(64.65 * scale)
+            self.down()
+            self.wheel(self.position(), scale)
+            self.up()
+            self.backward(64.65 * scale)
+            self.right(72)
+        self.up()
+        self.goto(homePos)
+        self.right(36)
+        self.forward(24.5 * scale)
+        self.right(198)
+        self.down()
+        self.centerpiece(46 * scale, 143.4, scale)
+        self.getscreen().tracer(True)
+
+    def wheel(self, initpos, scale):
+        self.right(54)
+        for i in range(4):
+            self.pentpiece(initpos, scale)
+        self.down()
+        self.left(36)
+        for i in range(5):
+            self.tripiece(initpos, scale)
+        self.left(36)
+        for i in range(5):
+            self.down()
+            self.right(72)
+            self.forward(28 * scale)
+            self.up()
+            self.backward(28 * scale)
+        self.left(54)
+        self.getscreen().update()
+
+    def tripiece(self, initpos, scale):
+        oldh = self.heading()
+        self.down()
+        self.backward(2.5 * scale)
+        self.tripolyr(31.5 * scale, scale)
+        self.up()
+        self.goto(initpos)
+        self.setheading(oldh)
+        self.down()
+        self.backward(2.5 * scale)
+        self.tripolyl(31.5 * scale, scale)
+        self.up()
+        self.goto(initpos)
+        self.setheading(oldh)
+        self.left(72)
+        self.getscreen().update()
+
+    def pentpiece(self, initpos, scale):
+        oldh = self.heading()
+        self.up()
+        self.forward(29 * scale)
+        self.down()
+        for i in range(5):
+            self.forward(18 * scale)
+            self.right(72)
+        self.pentr(18 * scale, 75, scale)
+        self.up()
+        self.goto(initpos)
+        self.setheading(oldh)
+        self.forward(29 * scale)
+        self.down()
+        for i in range(5):
+            self.forward(18 * scale)
+            self.right(72)
+        self.pentl(18 * scale, 75, scale)
+        self.up()
+        self.goto(initpos)
+        self.setheading(oldh)
+        self.left(72)
+        self.getscreen().update()
+
+    def pentl(self, side, ang, scale):
+        if side < (2 * scale): return
+        self.forward(side)
+        self.left(ang)
+        self.pentl(side - (.38 * scale), ang, scale)
+
+    def pentr(self, side, ang, scale):
+        if side < (2 * scale): return
+        self.forward(side)
+        self.right(ang)
+        self.pentr(side - (.38 * scale), ang, scale)
+
+    def tripolyr(self, side, scale):
+        if side < (4 * scale): return
+        self.forward(side)
+        self.right(111)
+        self.forward(side / 1.78)
+        self.right(111)
+        self.forward(side / 1.3)
+        self.right(146)
+        self.tripolyr(side * .75, scale)
+
+    def tripolyl(self, side, scale):
+        if side < (4 * scale): return
+        self.forward(side)
+        self.left(111)
+        self.forward(side / 1.78)
+        self.left(111)
+        self.forward(side / 1.3)
+        self.left(146)
+        self.tripolyl(side * .75, scale)
+
+    def centerpiece(self, s, a, scale):
+        self.forward(s); self.left(a)
+        if s < (7.5 * scale):
+            return
+        self.centerpiece(s - (1.2 * scale), a, scale)
+
+def main():
+    t = Designer()
+    t.speed(0)
+    t.hideturtle()
+    t.getscreen().delay(0)
+    t.getscreen().tracer(0)
+    at = clock()
+    t.design(t.position(), 2)
+    et = clock()
+    return "runtime: %.2f sec." % (et-at)
+
+if __name__ == '__main__':
+    msg = main()
+    print(msg)
+    mainloop()

valley/lib/python3.10/turtledemo/chaos.py

@@ -0,0 +1,59 @@
+# File: tdemo_chaos.py
+# Author: Gregor Lingl
+# Date: 2009-06-24
+
+# A demonstration of chaos
+
+from turtle import *
+
+N = 80
+
+def f(x):
+    return 3.9*x*(1-x)
+
+def g(x):
+    return 3.9*(x-x**2)
+
+def h(x):
+    return 3.9*x-3.9*x*x
+
+def jumpto(x, y):
+    penup(); goto(x,y)
+
+def line(x1, y1, x2, y2):
+    jumpto(x1, y1)
+    pendown()
+    goto(x2, y2)
+
+def coosys():
+    line(-1, 0, N+1, 0)
+    line(0, -0.1, 0, 1.1)
+
+def plot(fun, start, color):
+    pencolor(color)
+    x = start
+    jumpto(0, x)
+    pendown()
+    dot(5)
+    for i in range(N):
+        x=fun(x)
+        goto(i+1,x)
+        dot(5)
+
+def main():
+    reset()
+    setworldcoordinates(-1.0,-0.1, N+1, 1.1)
+    speed(0)
+    hideturtle()
+    coosys()
+    plot(f, 0.35, "blue")
+    plot(g, 0.35, "green")
+    plot(h, 0.35, "red")
+    # Now zoom in:
+    for s in range(100):
+        setworldcoordinates(0.5*s,-0.1, N+1, 1.1)
+    return "Done!"
+
+if __name__ == "__main__":
+    main()
+    mainloop()

valley/lib/python3.10/turtledemo/clock.py

@@ -0,0 +1,131 @@
+#!/usr/bin/env python3
+# -*- coding: cp1252 -*-
+"""       turtle-example-suite:
+
+             tdemo_clock.py
+
+Enhanced clock-program, showing date
+and time
+  ------------------------------------
+   Press STOP to exit the program!
+  ------------------------------------
+"""
+from turtle import *
+from datetime import datetime
+
+def jump(distanz, winkel=0):
+    penup()
+    right(winkel)
+    forward(distanz)
+    left(winkel)
+    pendown()
+
+def hand(laenge, spitze):
+    fd(laenge*1.15)
+    rt(90)
+    fd(spitze/2.0)
+    lt(120)
+    fd(spitze)
+    lt(120)
+    fd(spitze)
+    lt(120)
+    fd(spitze/2.0)
+
+def make_hand_shape(name, laenge, spitze):
+    reset()
+    jump(-laenge*0.15)
+    begin_poly()
+    hand(laenge, spitze)
+    end_poly()
+    hand_form = get_poly()
+    register_shape(name, hand_form)
+
+def clockface(radius):
+    reset()
+    pensize(7)
+    for i in range(60):
+        jump(radius)
+        if i % 5 == 0:
+            fd(25)
+            jump(-radius-25)
+        else:
+            dot(3)
+            jump(-radius)
+        rt(6)
+
+def setup():
+    global second_hand, minute_hand, hour_hand, writer
+    mode("logo")
+    make_hand_shape("second_hand", 125, 25)
+    make_hand_shape("minute_hand",  130, 25)
+    make_hand_shape("hour_hand", 90, 25)
+    clockface(160)
+    second_hand = Turtle()
+    second_hand.shape("second_hand")
+    second_hand.color("gray20", "gray80")
+    minute_hand = Turtle()
+    minute_hand.shape("minute_hand")
+    minute_hand.color("blue1", "red1")
+    hour_hand = Turtle()
+    hour_hand.shape("hour_hand")
+    hour_hand.color("blue3", "red3")
+    for hand in second_hand, minute_hand, hour_hand:
+        hand.resizemode("user")
+        hand.shapesize(1, 1, 3)
+        hand.speed(0)
+    ht()
+    writer = Turtle()
+    #writer.mode("logo")
+    writer.ht()
+    writer.pu()
+    writer.bk(85)
+
+def wochentag(t):
+    wochentag = ["Monday", "Tuesday", "Wednesday",
+        "Thursday", "Friday", "Saturday", "Sunday"]
+    return wochentag[t.weekday()]
+
+def datum(z):
+    monat = ["Jan.", "Feb.", "Mar.", "Apr.", "May", "June",
+             "July", "Aug.", "Sep.", "Oct.", "Nov.", "Dec."]
+    j = z.year
+    m = monat[z.month - 1]
+    t = z.day
+    return "%s %d %d" % (m, t, j)
+
+def tick():
+    t = datetime.today()
+    sekunde = t.second + t.microsecond*0.000001
+    minute = t.minute + sekunde/60.0
+    stunde = t.hour + minute/60.0
+    try:
+        tracer(False)  # Terminator can occur here
+        writer.clear()
+        writer.home()
+        writer.forward(65)
+        writer.write(wochentag(t),
+                     align="center", font=("Courier", 14, "bold"))
+        writer.back(150)
+        writer.write(datum(t),
+                     align="center", font=("Courier", 14, "bold"))
+        writer.forward(85)
+        second_hand.setheading(6*sekunde)  # or here
+        minute_hand.setheading(6*minute)
+        hour_hand.setheading(30*stunde)
+        tracer(True)
+        ontimer(tick, 100)
+    except Terminator:
+        pass  # turtledemo user pressed STOP
+
+def main():
+    tracer(False)
+    setup()
+    tracer(True)
+    tick()
+    return "EVENTLOOP"
+
+if __name__ == "__main__":
+    mode("logo")
+    msg = main()
+    print(msg)
+    mainloop()

valley/lib/python3.10/turtledemo/colormixer.py

@@ -0,0 +1,58 @@
+# colormixer
+
+from turtle import Screen, Turtle, mainloop
+
+class ColorTurtle(Turtle):
+
+    def __init__(self, x, y):
+        Turtle.__init__(self)
+        self.shape("turtle")
+        self.resizemode("user")
+        self.shapesize(3,3,5)
+        self.pensize(10)
+        self._color = [0,0,0]
+        self.x = x
+        self._color[x] = y
+        self.color(self._color)
+        self.speed(0)
+        self.left(90)
+        self.pu()
+        self.goto(x,0)
+        self.pd()
+        self.sety(1)
+        self.pu()
+        self.sety(y)
+        self.pencolor("gray25")
+        self.ondrag(self.shift)
+
+    def shift(self, x, y):
+        self.sety(max(0,min(y,1)))
+        self._color[self.x] = self.ycor()
+        self.fillcolor(self._color)
+        setbgcolor()
+
+def setbgcolor():
+    screen.bgcolor(red.ycor(), green.ycor(), blue.ycor())
+
+def main():
+    global screen, red, green, blue
+    screen = Screen()
+    screen.delay(0)
+    screen.setworldcoordinates(-1, -0.3, 3, 1.3)
+
+    red = ColorTurtle(0, .5)
+    green = ColorTurtle(1, .5)
+    blue = ColorTurtle(2, .5)
+    setbgcolor()
+
+    writer = Turtle()
+    writer.ht()
+    writer.pu()
+    writer.goto(1,1.15)
+    writer.write("DRAG!",align="center",font=("Arial",30,("bold","italic")))
+    return "EVENTLOOP"
+
+if __name__ == "__main__":
+    msg = main()
+    print(msg)
+    mainloop()

valley/lib/python3.10/turtledemo/forest.py

@@ -0,0 +1,108 @@
+#!/usr/bin/env python3
+"""     turtlegraphics-example-suite:
+
+             tdemo_forest.py
+
+Displays a 'forest' of 3 breadth-first-trees
+similar to the one in tree.
+For further remarks see tree.py
+
+This example is a 'breadth-first'-rewrite of
+a Logo program written by Erich Neuwirth. See
+http://homepage.univie.ac.at/erich.neuwirth/
+"""
+from turtle import Turtle, colormode, tracer, mainloop
+from random import randrange
+from time import perf_counter as clock
+
+def symRandom(n):
+    return randrange(-n,n+1)
+
+def randomize( branchlist, angledist, sizedist ):
+    return [ (angle+symRandom(angledist),
+              sizefactor*1.01**symRandom(sizedist))
+                     for angle, sizefactor in branchlist ]
+
+def randomfd( t, distance, parts, angledist ):
+    for i in range(parts):
+        t.left(symRandom(angledist))
+        t.forward( (1.0 * distance)/parts )
+
+def tree(tlist, size, level, widthfactor, branchlists, angledist=10, sizedist=5):
+    # benutzt Liste von turtles und Liste von Zweiglisten,
+    # fuer jede turtle eine!
+    if level > 0:
+        lst = []
+        brs = []
+        for t, branchlist in list(zip(tlist,branchlists)):
+            t.pensize( size * widthfactor )
+            t.pencolor( 255 - (180 - 11 * level + symRandom(15)),
+                        180 - 11 * level + symRandom(15),
+                        0 )
+            t.pendown()
+            randomfd(t, size, level, angledist )
+            yield 1
+            for angle, sizefactor in branchlist:
+                t.left(angle)
+                lst.append(t.clone())
+                brs.append(randomize(branchlist, angledist, sizedist))
+                t.right(angle)
+        for x in tree(lst, size*sizefactor, level-1, widthfactor, brs,
+                      angledist, sizedist):
+            yield None
+
+
+def start(t,x,y):
+    colormode(255)
+    t.reset()
+    t.speed(0)
+    t.hideturtle()
+    t.left(90)
+    t.penup()
+    t.setpos(x,y)
+    t.pendown()
+
+def doit1(level, pen):
+    pen.hideturtle()
+    start(pen, 20, -208)
+    t = tree( [pen], 80, level, 0.1, [[ (45,0.69), (0,0.65), (-45,0.71) ]] )
+    return t
+
+def doit2(level, pen):
+    pen.hideturtle()
+    start(pen, -135, -130)
+    t = tree( [pen], 120, level, 0.1, [[ (45,0.69), (-45,0.71) ]] )
+    return t
+
+def doit3(level, pen):
+    pen.hideturtle()
+    start(pen, 190, -90)
+    t = tree( [pen], 100, level, 0.1, [[ (45,0.7), (0,0.72), (-45,0.65) ]] )
+    return t
+
+# Hier 3 Baumgeneratoren:
+def main():
+    p = Turtle()
+    p.ht()
+    tracer(75,0)
+    u = doit1(6, Turtle(undobuffersize=1))
+    s = doit2(7, Turtle(undobuffersize=1))
+    t = doit3(5, Turtle(undobuffersize=1))
+    a = clock()
+    while True:
+        done = 0
+        for b in u,s,t:
+            try:
+                b.__next__()
+            except:
+                done += 1
+        if done == 3:
+            break
+
+    tracer(1,10)
+    b = clock()
+    return "runtime: %.2f sec." % (b-a)
+
+if __name__ == '__main__':
+    main()
+    mainloop()

valley/lib/python3.10/turtledemo/fractalcurves.py

@@ -0,0 +1,138 @@
+#!/usr/bin/env python3
+"""      turtle-example-suite:
+
+        tdemo_fractalCurves.py
+
+This program draws two fractal-curve-designs:
+(1) A hilbert curve (in a box)
+(2) A combination of Koch-curves.
+
+The CurvesTurtle class and the fractal-curve-
+methods are taken from the PythonCard example
+scripts for turtle-graphics.
+"""
+from turtle import *
+from time import sleep, perf_counter as clock
+
+class CurvesTurtle(Pen):
+    # example derived from
+    # Turtle Geometry: The Computer as a Medium for Exploring Mathematics
+    # by Harold Abelson and Andrea diSessa
+    # p. 96-98
+    def hilbert(self, size, level, parity):
+        if level == 0:
+            return
+        # rotate and draw first subcurve with opposite parity to big curve
+        self.left(parity * 90)
+        self.hilbert(size, level - 1, -parity)
+        # interface to and draw second subcurve with same parity as big curve
+        self.forward(size)
+        self.right(parity * 90)
+        self.hilbert(size, level - 1, parity)
+        # third subcurve
+        self.forward(size)
+        self.hilbert(size, level - 1, parity)
+        # fourth subcurve
+        self.right(parity * 90)
+        self.forward(size)
+        self.hilbert(size, level - 1, -parity)
+        # a final turn is needed to make the turtle
+        # end up facing outward from the large square
+        self.left(parity * 90)
+
+    # Visual Modeling with Logo: A Structural Approach to Seeing
+    # by James Clayson
+    # Koch curve, after Helge von Koch who introduced this geometric figure in 1904
+    # p. 146
+    def fractalgon(self, n, rad, lev, dir):
+        import math
+
+        # if dir = 1 turn outward
+        # if dir = -1 turn inward
+        edge = 2 * rad * math.sin(math.pi / n)
+        self.pu()
+        self.fd(rad)
+        self.pd()
+        self.rt(180 - (90 * (n - 2) / n))
+        for i in range(n):
+            self.fractal(edge, lev, dir)
+            self.rt(360 / n)
+        self.lt(180 - (90 * (n - 2) / n))
+        self.pu()
+        self.bk(rad)
+        self.pd()
+
+    # p. 146
+    def fractal(self, dist, depth, dir):
+        if depth < 1:
+            self.fd(dist)
+            return
+        self.fractal(dist / 3, depth - 1, dir)
+        self.lt(60 * dir)
+        self.fractal(dist / 3, depth - 1, dir)
+        self.rt(120 * dir)
+        self.fractal(dist / 3, depth - 1, dir)
+        self.lt(60 * dir)
+        self.fractal(dist / 3, depth - 1, dir)
+
+def main():
+    ft = CurvesTurtle()
+
+    ft.reset()
+    ft.speed(0)
+    ft.ht()
+    ft.getscreen().tracer(1,0)
+    ft.pu()
+
+    size = 6
+    ft.setpos(-33*size, -32*size)
+    ft.pd()
+
+    ta=clock()
+    ft.fillcolor("red")
+    ft.begin_fill()
+    ft.fd(size)
+
+    ft.hilbert(size, 6, 1)
+
+    # frame
+    ft.fd(size)
+    for i in range(3):
+        ft.lt(90)
+        ft.fd(size*(64+i%2))
+    ft.pu()
+    for i in range(2):
+        ft.fd(size)
+        ft.rt(90)
+    ft.pd()
+    for i in range(4):
+        ft.fd(size*(66+i%2))
+        ft.rt(90)
+    ft.end_fill()
+    tb=clock()
+    res =  "Hilbert: %.2fsec. " % (tb-ta)
+
+    sleep(3)
+
+    ft.reset()
+    ft.speed(0)
+    ft.ht()
+    ft.getscreen().tracer(1,0)
+
+    ta=clock()
+    ft.color("black", "blue")
+    ft.begin_fill()
+    ft.fractalgon(3, 250, 4, 1)
+    ft.end_fill()
+    ft.begin_fill()
+    ft.color("red")
+    ft.fractalgon(3, 200, 4, -1)
+    ft.end_fill()
+    tb=clock()
+    res +=  "Koch: %.2fsec." % (tb-ta)
+    return res
+
+if __name__  == '__main__':
+    msg = main()
+    print(msg)
+    mainloop()

valley/lib/python3.10/turtledemo/lindenmayer.py

@@ -0,0 +1,119 @@
+#!/usr/bin/env python3
+"""       turtle-example-suite:
+
+        xtx_lindenmayer_indian.py
+
+Each morning women in Tamil Nadu, in southern
+India, place designs, created by using rice
+flour and known as kolam on the thresholds of
+their homes.
+
+These can be described by Lindenmayer systems,
+which can easily be implemented with turtle
+graphics and Python.
+
+Two examples are shown here:
+(1) the snake kolam
+(2) anklets of Krishna
+
+Taken from Marcia Ascher: Mathematics
+Elsewhere, An Exploration of Ideas Across
+Cultures
+
+"""
+################################
+# Mini Lindenmayer tool
+###############################
+
+from turtle import *
+
+def replace( seq, replacementRules, n ):
+    for i in range(n):
+        newseq = ""
+        for element in seq:
+            newseq = newseq + replacementRules.get(element,element)
+        seq = newseq
+    return seq
+
+def draw( commands, rules ):
+    for b in commands:
+        try:
+            rules[b]()
+        except TypeError:
+            try:
+                draw(rules[b], rules)
+            except:
+                pass
+
+
+def main():
+    ################################
+    # Example 1: Snake kolam
+    ################################
+
+
+    def r():
+        right(45)
+
+    def l():
+        left(45)
+
+    def f():
+        forward(7.5)
+
+    snake_rules = {"-":r, "+":l, "f":f, "b":"f+f+f--f--f+f+f"}
+    snake_replacementRules = {"b": "b+f+b--f--b+f+b"}
+    snake_start = "b--f--b--f"
+
+    drawing = replace(snake_start, snake_replacementRules, 3)
+
+    reset()
+    speed(3)
+    tracer(1,0)
+    ht()
+    up()
+    backward(195)
+    down()
+    draw(drawing, snake_rules)
+
+    from time import sleep
+    sleep(3)
+
+    ################################
+    # Example 2: Anklets of Krishna
+    ################################
+
+    def A():
+        color("red")
+        circle(10,90)
+
+    def B():
+        from math import sqrt
+        color("black")
+        l = 5/sqrt(2)
+        forward(l)
+        circle(l, 270)
+        forward(l)
+
+    def F():
+        color("green")
+        forward(10)
+
+    krishna_rules = {"a":A, "b":B, "f":F}
+    krishna_replacementRules = {"a" : "afbfa", "b" : "afbfbfbfa" }
+    krishna_start = "fbfbfbfb"
+
+    reset()
+    speed(0)
+    tracer(3,0)
+    ht()
+    left(45)
+    drawing = replace(krishna_start, krishna_replacementRules, 3)
+    draw(drawing, krishna_rules)
+    tracer(1)
+    return "Done!"
+
+if __name__=='__main__':
+    msg = main()
+    print(msg)
+    mainloop()

valley/lib/python3.10/turtledemo/minimal_hanoi.py

@@ -0,0 +1,79 @@
+#!/usr/bin/env python3
+"""       turtle-example-suite:
+
+         tdemo_minimal_hanoi.py
+
+A minimal 'Towers of Hanoi' animation:
+A tower of 6 discs is transferred from the
+left to the right peg.
+
+An imho quite elegant and concise
+implementation using a tower class, which
+is derived from the built-in type list.
+
+Discs are turtles with shape "square", but
+stretched to rectangles by shapesize()
+ ---------------------------------------
+       To exit press STOP button
+ ---------------------------------------
+"""
+from turtle import *
+
+class Disc(Turtle):
+    def __init__(self, n):
+        Turtle.__init__(self, shape="square", visible=False)
+        self.pu()
+        self.shapesize(1.5, n*1.5, 2) # square-->rectangle
+        self.fillcolor(n/6., 0, 1-n/6.)
+        self.st()
+
+class Tower(list):
+    "Hanoi tower, a subclass of built-in type list"
+    def __init__(self, x):
+        "create an empty tower. x is x-position of peg"
+        self.x = x
+    def push(self, d):
+        d.setx(self.x)
+        d.sety(-150+34*len(self))
+        self.append(d)
+    def pop(self):
+        d = list.pop(self)
+        d.sety(150)
+        return d
+
+def hanoi(n, from_, with_, to_):
+    if n > 0:
+        hanoi(n-1, from_, to_, with_)
+        to_.push(from_.pop())
+        hanoi(n-1, with_, from_, to_)
+
+def play():
+    onkey(None,"space")
+    clear()
+    try:
+        hanoi(6, t1, t2, t3)
+        write("press STOP button to exit",
+              align="center", font=("Courier", 16, "bold"))
+    except Terminator:
+        pass  # turtledemo user pressed STOP
+
+def main():
+    global t1, t2, t3
+    ht(); penup(); goto(0, -225)   # writer turtle
+    t1 = Tower(-250)
+    t2 = Tower(0)
+    t3 = Tower(250)
+    # make tower of 6 discs
+    for i in range(6,0,-1):
+        t1.push(Disc(i))
+    # prepare spartanic user interface ;-)
+    write("press spacebar to start game",
+          align="center", font=("Courier", 16, "bold"))
+    onkey(play, "space")
+    listen()
+    return "EVENTLOOP"
+
+if __name__=="__main__":
+    msg = main()
+    print(msg)
+    mainloop()

valley/lib/python3.10/turtledemo/nim.py

@@ -0,0 +1,226 @@
+"""      turtle-example-suite:
+
+            tdemo_nim.py
+
+Play nim against the computer. The player
+who takes the last stick is the winner.
+
+Implements the model-view-controller
+design pattern.
+"""
+
+
+import turtle
+import random
+import time
+
+SCREENWIDTH = 640
+SCREENHEIGHT = 480
+
+MINSTICKS = 7
+MAXSTICKS = 31
+
+HUNIT = SCREENHEIGHT // 12
+WUNIT = SCREENWIDTH // ((MAXSTICKS // 5) * 11 + (MAXSTICKS % 5) * 2)
+
+SCOLOR = (63, 63, 31)
+HCOLOR = (255, 204, 204)
+COLOR = (204, 204, 255)
+
+def randomrow():
+    return random.randint(MINSTICKS, MAXSTICKS)
+
+def computerzug(state):
+    xored = state[0] ^ state[1] ^ state[2]
+    if xored == 0:
+        return randommove(state)
+    for z in range(3):
+        s = state[z] ^ xored
+        if s <= state[z]:
+            move = (z, s)
+            return move
+
+def randommove(state):
+    m = max(state)
+    while True:
+        z = random.randint(0,2)
+        if state[z] > (m > 1):
+            break
+    rand = random.randint(m > 1, state[z]-1)
+    return z, rand
+
+
+class NimModel(object):
+    def __init__(self, game):
+        self.game = game
+
+    def setup(self):
+        if self.game.state not in [Nim.CREATED, Nim.OVER]:
+            return
+        self.sticks = [randomrow(), randomrow(), randomrow()]
+        self.player = 0
+        self.winner = None
+        self.game.view.setup()
+        self.game.state = Nim.RUNNING
+
+    def move(self, row, col):
+        maxspalte = self.sticks[row]
+        self.sticks[row] = col
+        self.game.view.notify_move(row, col, maxspalte, self.player)
+        if self.game_over():
+            self.game.state = Nim.OVER
+            self.winner = self.player
+            self.game.view.notify_over()
+        elif self.player == 0:
+            self.player = 1
+            row, col = computerzug(self.sticks)
+            self.move(row, col)
+            self.player = 0
+
+    def game_over(self):
+        return self.sticks == [0, 0, 0]
+
+    def notify_move(self, row, col):
+        if self.sticks[row] <= col:
+            return
+        self.move(row, col)
+
+
+class Stick(turtle.Turtle):
+    def __init__(self, row, col, game):
+        turtle.Turtle.__init__(self, visible=False)
+        self.row = row
+        self.col = col
+        self.game = game
+        x, y = self.coords(row, col)
+        self.shape("square")
+        self.shapesize(HUNIT/10.0, WUNIT/20.0)
+        self.speed(0)
+        self.pu()
+        self.goto(x,y)
+        self.color("white")
+        self.showturtle()
+
+    def coords(self, row, col):
+        packet, remainder = divmod(col, 5)
+        x = (3 + 11 * packet + 2 * remainder) * WUNIT
+        y = (2 + 3 * row) * HUNIT
+        return x - SCREENWIDTH // 2 + WUNIT // 2, SCREENHEIGHT // 2 - y - HUNIT // 2
+
+    def makemove(self, x, y):
+        if self.game.state != Nim.RUNNING:
+            return
+        self.game.controller.notify_move(self.row, self.col)
+
+
+class NimView(object):
+    def __init__(self, game):
+        self.game = game
+        self.screen = game.screen
+        self.model = game.model
+        self.screen.colormode(255)
+        self.screen.tracer(False)
+        self.screen.bgcolor((240, 240, 255))
+        self.writer = turtle.Turtle(visible=False)
+        self.writer.pu()
+        self.writer.speed(0)
+        self.sticks = {}
+        for row in range(3):
+            for col in range(MAXSTICKS):
+                self.sticks[(row, col)] = Stick(row, col, game)
+        self.display("... a moment please ...")
+        self.screen.tracer(True)
+
+    def display(self, msg1, msg2=None):
+        self.screen.tracer(False)
+        self.writer.clear()
+        if msg2 is not None:
+            self.writer.goto(0, - SCREENHEIGHT // 2 + 48)
+            self.writer.pencolor("red")
+            self.writer.write(msg2, align="center", font=("Courier",18,"bold"))
+        self.writer.goto(0, - SCREENHEIGHT // 2 + 20)
+        self.writer.pencolor("black")
+        self.writer.write(msg1, align="center", font=("Courier",14,"bold"))
+        self.screen.tracer(True)
+
+    def setup(self):
+        self.screen.tracer(False)
+        for row in range(3):
+            for col in range(self.model.sticks[row]):
+                self.sticks[(row, col)].color(SCOLOR)
+        for row in range(3):
+            for col in range(self.model.sticks[row], MAXSTICKS):
+                self.sticks[(row, col)].color("white")
+        self.display("Your turn! Click leftmost stick to remove.")
+        self.screen.tracer(True)
+
+    def notify_move(self, row, col, maxspalte, player):
+        if player == 0:
+            farbe = HCOLOR
+            for s in range(col, maxspalte):
+                self.sticks[(row, s)].color(farbe)
+        else:
+            self.display(" ... thinking ...         ")
+            time.sleep(0.5)
+            self.display(" ... thinking ... aaah ...")
+            farbe = COLOR
+            for s in range(maxspalte-1, col-1, -1):
+                time.sleep(0.2)
+                self.sticks[(row, s)].color(farbe)
+            self.display("Your turn! Click leftmost stick to remove.")
+
+    def notify_over(self):
+        if self.game.model.winner == 0:
+            msg2 = "Congrats. You're the winner!!!"
+        else:
+            msg2 = "Sorry, the computer is the winner."
+        self.display("To play again press space bar. To leave press ESC.", msg2)
+
+    def clear(self):
+        if self.game.state == Nim.OVER:
+            self.screen.clear()
+
+
+class NimController(object):
+
+    def __init__(self, game):
+        self.game = game
+        self.sticks = game.view.sticks
+        self.BUSY = False
+        for stick in self.sticks.values():
+            stick.onclick(stick.makemove)
+        self.game.screen.onkey(self.game.model.setup, "space")
+        self.game.screen.onkey(self.game.view.clear, "Escape")
+        self.game.view.display("Press space bar to start game")
+        self.game.screen.listen()
+
+    def notify_move(self, row, col):
+        if self.BUSY:
+            return
+        self.BUSY = True
+        self.game.model.notify_move(row, col)
+        self.BUSY = False
+
+
+class Nim(object):
+    CREATED = 0
+    RUNNING = 1
+    OVER = 2
+    def __init__(self, screen):
+        self.state = Nim.CREATED
+        self.screen = screen
+        self.model = NimModel(self)
+        self.view = NimView(self)
+        self.controller = NimController(self)
+
+
+def main():
+    mainscreen = turtle.Screen()
+    mainscreen.mode("standard")
+    mainscreen.setup(SCREENWIDTH, SCREENHEIGHT)
+    nim = Nim(mainscreen)
+    return "EVENTLOOP"
+
+if __name__ == "__main__":
+    main()
+    turtle.mainloop()