INSTRUCTION stringlengths 1 46.3k | RESPONSE stringlengths 75 80.2k |
|---|---|
Yields (page, page_url) from the given locations, skipping
locations that have errors. | def _get_pages(self, locations, project_name):
# type: (Iterable[Link], str) -> Iterable[HTMLPage]
"""
Yields (page, page_url) from the given locations, skipping
locations that have errors.
"""
seen = set() # type: Set[Link]
for location in locations:
... |
Yields all links in the page | def iter_links(self):
# type: () -> Iterable[Link]
"""Yields all links in the page"""
document = html5lib.parse(
self.content,
transport_encoding=_get_encoding_from_headers(self.headers),
namespaceHTMLElements=False,
)
base_url = _determine_bas... |
This function runs the given command; waits for it to finish; then
returns all output as a string. STDERR is included in output. If the full
path to the command is not given then the path is searched.
Note that lines are terminated by CR/LF (\\r\\n) combination even on
UNIX-like systems because this is... | def run(command, timeout=30, withexitstatus=False, events=None,
extra_args=None, logfile=None, cwd=None, env=None, **kwargs):
'''
This function runs the given command; waits for it to finish; then
returns all output as a string. STDERR is included in output. If the full
path to the command is n... |
Deprecated: pass encoding to run() instead. | def runu(command, timeout=30, withexitstatus=False, events=None,
extra_args=None, logfile=None, cwd=None, env=None, **kwargs):
"""Deprecated: pass encoding to run() instead.
"""
kwargs.setdefault('encoding', 'utf-8')
return run(command, timeout=timeout, withexitstatus=withexitstatus,
... |
Try to look up the process tree via the output of `ps`. | def get_process_mapping():
"""Try to look up the process tree via the output of `ps`.
"""
output = subprocess.check_output([
'ps', '-ww', '-o', 'pid=', '-o', 'ppid=', '-o', 'args=',
])
if not isinstance(output, str):
output = output.decode(sys.stdout.encoding)
processes = {}
... |
Build the path URL to use. | def path_url(self):
"""Build the path URL to use."""
url = []
p = urlsplit(self.url)
path = p.path
if not path:
path = '/'
url.append(path)
query = p.query
if query:
url.append('?')
url.append(query)
return... |
Encode parameters in a piece of data.
Will successfully encode parameters when passed as a dict or a list of
2-tuples. Order is retained if data is a list of 2-tuples but arbitrary
if parameters are supplied as a dict. | def _encode_params(data):
"""Encode parameters in a piece of data.
Will successfully encode parameters when passed as a dict or a list of
2-tuples. Order is retained if data is a list of 2-tuples but arbitrary
if parameters are supplied as a dict.
"""
if isinstance(data... |
Properly register a hook. | def register_hook(self, event, hook):
"""Properly register a hook."""
if event not in self.hooks:
raise ValueError('Unsupported event specified, with event name "%s"' % (event))
if isinstance(hook, Callable):
self.hooks[event].append(hook)
elif hasattr(hook, '__... |
Build the body for a multipart/form-data request.
Will successfully encode files when passed as a dict or a list of
tuples. Order is retained if data is a list of tuples but arbitrary
if parameters are supplied as a dict.
The tuples may be 2-tuples (filename, fileobj), 3-tuples (filenam... | def _encode_files(files, data):
"""Build the body for a multipart/form-data request.
Will successfully encode files when passed as a dict or a list of
tuples. Order is retained if data is a list of tuples but arbitrary
if parameters are supplied as a dict.
The tuples may be 2-tu... |
Deregister a previously registered hook.
Returns True if the hook existed, False if not. | def deregister_hook(self, event, hook):
"""Deregister a previously registered hook.
Returns True if the hook existed, False if not.
"""
try:
self.hooks[event].remove(hook)
return True
except ValueError:
return False |
Prepares the entire request with the given parameters. | def prepare(self,
method=None, url=None, headers=None, files=None, data=None,
params=None, auth=None, cookies=None, hooks=None, json=None):
"""Prepares the entire request with the given parameters."""
self.prepare_method(method)
self.prepare_url(url, params)
self... |
Prepares the given HTTP body data. | def prepare_body(self, data, files, json=None):
"""Prepares the given HTTP body data."""
# Check if file, fo, generator, iterator.
# If not, run through normal process.
# Nottin' on you.
body = None
content_type = None
if not data and json is not None:
... |
Prepare Content-Length header based on request method and body | def prepare_content_length(self, body):
"""Prepare Content-Length header based on request method and body"""
if body is not None:
length = super_len(body)
if length:
# If length exists, set it. Otherwise, we fallback
# to Transfer-Encoding: chunked... |
Prepares the given HTTP auth data. | def prepare_auth(self, auth, url=''):
"""Prepares the given HTTP auth data."""
# If no Auth is explicitly provided, extract it from the URL first.
if auth is None:
url_auth = get_auth_from_url(self.url)
auth = url_auth if any(url_auth) else None
if auth:
... |
Prepares the given HTTP cookie data.
This function eventually generates a ``Cookie`` header from the
given cookies using cookielib. Due to cookielib's design, the header
will not be regenerated if it already exists, meaning this function
can only be called once for the life of the
... | def prepare_cookies(self, cookies):
"""Prepares the given HTTP cookie data.
This function eventually generates a ``Cookie`` header from the
given cookies using cookielib. Due to cookielib's design, the header
will not be regenerated if it already exists, meaning this function
ca... |
Prepares the given hooks. | def prepare_hooks(self, hooks):
"""Prepares the given hooks."""
# hooks can be passed as None to the prepare method and to this
# method. To prevent iterating over None, simply use an empty list
# if hooks is False-y
hooks = hooks or []
for event in hooks:
sel... |
True if this Response one of the permanent versions of redirect. | def is_permanent_redirect(self):
"""True if this Response one of the permanent versions of redirect."""
return ('location' in self.headers and self.status_code in (codes.moved_permanently, codes.permanent_redirect)) |
Content of the response, in unicode.
If Response.encoding is None, encoding will be guessed using
``chardet``.
The encoding of the response content is determined based solely on HTTP
headers, following RFC 2616 to the letter. If you can take advantage of
non-HTTP knowledge to m... | def text(self):
"""Content of the response, in unicode.
If Response.encoding is None, encoding will be guessed using
``chardet``.
The encoding of the response content is determined based solely on HTTP
headers, following RFC 2616 to the letter. If you can take advantage of
... |
Raises stored :class:`HTTPError`, if one occurred. | def raise_for_status(self):
"""Raises stored :class:`HTTPError`, if one occurred."""
http_error_msg = ''
if isinstance(self.reason, bytes):
# We attempt to decode utf-8 first because some servers
# choose to localize their reason strings. If the string
# isn'... |
Releases the connection back to the pool. Once this method has been
called the underlying ``raw`` object must not be accessed again.
*Note: Should not normally need to be called explicitly.* | def close(self):
"""Releases the connection back to the pool. Once this method has been
called the underlying ``raw`` object must not be accessed again.
*Note: Should not normally need to be called explicitly.*
"""
if not self._content_consumed:
self.raw.close()
... |
Format an error message for an EnvironmentError
It may occur anytime during the execution of the install command. | def create_env_error_message(error, show_traceback, using_user_site):
"""Format an error message for an EnvironmentError
It may occur anytime during the execution of the install command.
"""
parts = []
# Mention the error if we are not going to show a traceback
parts.append("Could not install ... |
Process IPv6 address literals | def _ipv6_host(host, scheme):
"""
Process IPv6 address literals
"""
# httplib doesn't like it when we include brackets in IPv6 addresses
# Specifically, if we include brackets but also pass the port then
# httplib crazily doubles up the square brackets on the Host header.
# Instead, we need... |
Get a connection. Will return a pooled connection if one is available.
If no connections are available and :prop:`.block` is ``False``, then a
fresh connection is returned.
:param timeout:
Seconds to wait before giving up and raising
:class:`urllib3.exceptions.EmptyPool... | def _get_conn(self, timeout=None):
"""
Get a connection. Will return a pooled connection if one is available.
If no connections are available and :prop:`.block` is ``False``, then a
fresh connection is returned.
:param timeout:
Seconds to wait before giving up and r... |
Helper that always returns a :class:`urllib3.util.Timeout` | def _get_timeout(self, timeout):
""" Helper that always returns a :class:`urllib3.util.Timeout` """
if timeout is _Default:
return self.timeout.clone()
if isinstance(timeout, Timeout):
return timeout.clone()
else:
# User passed us an int/float. This i... |
Is the error actually a timeout? Will raise a ReadTimeout or pass | def _raise_timeout(self, err, url, timeout_value):
"""Is the error actually a timeout? Will raise a ReadTimeout or pass"""
if isinstance(err, SocketTimeout):
raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
# See the above comment about EAGAIN ... |
Get a connection from the pool and perform an HTTP request. This is the
lowest level call for making a request, so you'll need to specify all
the raw details.
.. note::
More commonly, it's appropriate to use a convenience method provided
by :class:`.RequestMethods`, such ... | def urlopen(self, method, url, body=None, headers=None, retries=None,
redirect=True, assert_same_host=True, timeout=_Default,
pool_timeout=None, release_conn=None, chunked=False,
body_pos=None, **response_kw):
"""
Get a connection from the pool and perform... |
Prepare the ``connection`` for :meth:`urllib3.util.ssl_wrap_socket`
and establish the tunnel if proxy is used. | def _prepare_conn(self, conn):
"""
Prepare the ``connection`` for :meth:`urllib3.util.ssl_wrap_socket`
and establish the tunnel if proxy is used.
"""
if isinstance(conn, VerifiedHTTPSConnection):
conn.set_cert(key_file=self.key_file,
cert_fi... |
Establish tunnel connection early, because otherwise httplib
would improperly set Host: header to proxy's IP:port. | def _prepare_proxy(self, conn):
"""
Establish tunnel connection early, because otherwise httplib
would improperly set Host: header to proxy's IP:port.
"""
conn.set_tunnel(self._proxy_host, self.port, self.proxy_headers)
conn.connect() |
Rebuilds the base system path and all of the contained finders within it.
This will re-apply any changes to the environment or any version changes on the system. | def reload_system_path(self):
# type: () -> None
"""
Rebuilds the base system path and all of the contained finders within it.
This will re-apply any changes to the environment or any version changes on the system.
"""
if self._system_path is not None:
self.... |
Find the python version which corresponds most closely to the version requested.
:param Union[str, int] major: The major version to look for, or the full version, or the name of the target version.
:param Optional[int] minor: The minor version. If provided, disables string-based lookups from the major ... | def find_python_version(
self, major=None, minor=None, patch=None, pre=None, dev=None, arch=None, name=None
):
# type: (Optional[Union[str, int]], Optional[int], Optional[int], Optional[bool], Optional[bool], Optional[str], Optional[str]) -> PathEntry
"""
Find the python version whic... |
Get the shell that the supplied pid or os.getpid() is running in. | def get_shell(pid=None, max_depth=6):
"""Get the shell that the supplied pid or os.getpid() is running in.
"""
pid = str(pid or os.getpid())
mapping = _get_process_mapping()
login_shell = os.environ.get('SHELL', '')
for _ in range(max_depth):
try:
proc = mapping[pid]
... |
Make the given class un-picklable. | def _make_class_unpicklable(cls):
"""Make the given class un-picklable."""
def _break_on_call_reduce(self, protocol=None):
raise TypeError('%r cannot be pickled' % self)
cls.__reduce_ex__ = _break_on_call_reduce
cls.__module__ = '<unknown>' |
Class decorator that ensures only unique members exist in an enumeration. | def unique(enumeration):
"""Class decorator that ensures only unique members exist in an enumeration."""
duplicates = []
for name, member in enumeration.__members__.items():
if name != member.name:
duplicates.append((name, member.name))
if duplicates:
duplicate_names = ', '.j... |
Convenience method to create a new Enum class.
`names` can be:
* A string containing member names, separated either with spaces or
commas. Values are auto-numbered from 1.
* An iterable of member names. Values are auto-numbered from 1.
* An iterable of (member name, value) ... | def _create_(cls, class_name, names=None, module=None, type=None, start=1):
"""Convenience method to create a new Enum class.
`names` can be:
* A string containing member names, separated either with spaces or
commas. Values are auto-numbered from 1.
* An iterable of member ... |
Returns the type for creating enum members, and the first inherited
enum class.
bases: the tuple of bases that was given to __new__ | def _get_mixins_(bases):
"""Returns the type for creating enum members, and the first inherited
enum class.
bases: the tuple of bases that was given to __new__
"""
if not bases or Enum is None:
return object, Enum
# double check that we are not subclassing... |
Returns a Basic Auth string. | def _basic_auth_str(username, password):
"""Returns a Basic Auth string."""
# "I want us to put a big-ol' comment on top of it that
# says that this behaviour is dumb but we need to preserve
# it because people are relying on it."
# - Lukasa
#
# These are here solely to maintain backward... |
Convert the package data into something usable
by output_package_listing_columns. | def format_for_columns(pkgs, options):
"""
Convert the package data into something usable
by output_package_listing_columns.
"""
running_outdated = options.outdated
# Adjust the header for the `pip list --outdated` case.
if running_outdated:
header = ["Package", "Version", "Latest", ... |
Create a package finder appropriate to this list command. | def _build_package_finder(self, options, index_urls, session):
"""
Create a package finder appropriate to this list command.
"""
return PackageFinder(
find_links=options.find_links,
index_urls=index_urls,
allow_all_prereleases=options.pre,
... |
Build a shebang line. In the simple case (on Windows, or a shebang line
which is not too long or contains spaces) use a simple formulation for
the shebang. Otherwise, use /bin/sh as the executable, with a contrived
shebang which allows the script to run either under Python or sh, using
s... | def _build_shebang(self, executable, post_interp):
"""
Build a shebang line. In the simple case (on Windows, or a shebang line
which is not too long or contains spaces) use a simple formulation for
the shebang. Otherwise, use /bin/sh as the executable, with a contrived
shebang wh... |
Make a script.
:param specification: The specification, which is either a valid export
entry specification (to make a script from a
callable) or a filename (to make a script by
copying from a source location).
:pa... | def make(self, specification, options=None):
"""
Make a script.
:param specification: The specification, which is either a valid export
entry specification (to make a script from a
callable) or a filename (to make a script by
... |
Take a list of specifications and make scripts from them,
:param specifications: A list of specifications.
:return: A list of all absolute pathnames written to, | def make_multiple(self, specifications, options=None):
"""
Take a list of specifications and make scripts from them,
:param specifications: A list of specifications.
:return: A list of all absolute pathnames written to,
"""
filenames = []
for specification in spec... |
Returns a generator that yields file paths under a *directory*,
matching *patterns* using `glob`_ syntax (e.g., ``*.txt``). Also
supports *ignored* patterns.
Args:
directory (str): Path that serves as the root of the
search. Yielded paths will include this as a prefix.
patterns ... | def iter_find_files(directory, patterns, ignored=None):
"""Returns a generator that yields file paths under a *directory*,
matching *patterns* using `glob`_ syntax (e.g., ``*.txt``). Also
supports *ignored* patterns.
Args:
directory (str): Path that serves as the root of the
search.... |
Create a :class:`FilePerms` object from an integer.
>>> FilePerms.from_int(0o644) # note the leading zero-oh for octal
FilePerms(user='rw', group='r', other='r') | def from_int(cls, i):
"""Create a :class:`FilePerms` object from an integer.
>>> FilePerms.from_int(0o644) # note the leading zero-oh for octal
FilePerms(user='rw', group='r', other='r')
"""
i &= FULL_PERMS
key = ('', 'x', 'w', 'xw', 'r', 'rx', 'rw', 'rwx')
part... |
Make a new :class:`FilePerms` object based on the permissions
assigned to the file or directory at *path*.
Args:
path (str): Filesystem path of the target file.
>>> from os.path import expanduser
>>> 'r' in FilePerms.from_path(expanduser('~')).user # probably
True | def from_path(cls, path):
"""Make a new :class:`FilePerms` object based on the permissions
assigned to the file or directory at *path*.
Args:
path (str): Filesystem path of the target file.
>>> from os.path import expanduser
>>> 'r' in FilePerms.from_path(expanduser... |
Called on context manager entry (the :keyword:`with` statement),
the ``setup()`` method creates the temporary file in the same
directory as the destination file.
``setup()`` tests for a writable directory with rename permissions
early, as the part file may not be written to immediately ... | def setup(self):
"""Called on context manager entry (the :keyword:`with` statement),
the ``setup()`` method creates the temporary file in the same
directory as the destination file.
``setup()`` tests for a writable directory with rename permissions
early, as the part file may no... |
Loads a pipfile from a given path.
If none is provided, one will try to be found. | def load(pipfile_path=None, inject_env=True):
"""Loads a pipfile from a given path.
If none is provided, one will try to be found.
"""
if pipfile_path is None:
pipfile_path = Pipfile.find()
return Pipfile.load(filename=pipfile_path, inject_env=inject_env) |
Recursively injects environment variables into TOML values | def inject_environment_variables(self, d):
"""
Recursively injects environment variables into TOML values
"""
if not d:
return d
if isinstance(d, six.string_types):
return os.path.expandvars(d)
for k, v in d.items():
if isinstance(v, s... |
Returns the path of a Pipfile in parent directories. | def find(max_depth=3):
"""Returns the path of a Pipfile in parent directories."""
i = 0
for c, d, f in walk_up(os.getcwd()):
i += 1
if i < max_depth:
if 'Pipfile':
p = os.path.join(c, 'Pipfile')
if os.path.isfile(p)... |
Load a Pipfile from a given filename. | def load(klass, filename, inject_env=True):
"""Load a Pipfile from a given filename."""
p = PipfileParser(filename=filename)
pipfile = klass(filename=filename)
pipfile.data = p.parse(inject_env=inject_env)
return pipfile |
Returns the SHA256 of the pipfile's data. | def hash(self):
"""Returns the SHA256 of the pipfile's data."""
content = json.dumps(self.data, sort_keys=True, separators=(",", ":"))
return hashlib.sha256(content.encode("utf8")).hexdigest() |
Returns a JSON representation of the Pipfile. | def lock(self):
"""Returns a JSON representation of the Pipfile."""
data = self.data
data['_meta']['hash'] = {"sha256": self.hash}
data['_meta']['pipfile-spec'] = 6
return json.dumps(data, indent=4, separators=(',', ': ')) |
Asserts PEP 508 specifiers. | def assert_requirements(self):
""""Asserts PEP 508 specifiers."""
# Support for 508's implementation_version.
if hasattr(sys, 'implementation'):
implementation_version = format_full_version(sys.implementation.version)
else:
implementation_version = "0"
#... |
copy data from file-like object fsrc to file-like object fdst | def copyfileobj(fsrc, fdst, length=16*1024):
"""copy data from file-like object fsrc to file-like object fdst"""
while 1:
buf = fsrc.read(length)
if not buf:
break
fdst.write(buf) |
Copy data from src to dst | def copyfile(src, dst):
"""Copy data from src to dst"""
if _samefile(src, dst):
raise Error("`%s` and `%s` are the same file" % (src, dst))
for fn in [src, dst]:
try:
st = os.stat(fn)
except OSError:
# File most likely does not exist
pass
... |
Copy mode bits from src to dst | def copymode(src, dst):
"""Copy mode bits from src to dst"""
if hasattr(os, 'chmod'):
st = os.stat(src)
mode = stat.S_IMODE(st.st_mode)
os.chmod(dst, mode) |
Copy all stat info (mode bits, atime, mtime, flags) from src to dst | def copystat(src, dst):
"""Copy all stat info (mode bits, atime, mtime, flags) from src to dst"""
st = os.stat(src)
mode = stat.S_IMODE(st.st_mode)
if hasattr(os, 'utime'):
os.utime(dst, (st.st_atime, st.st_mtime))
if hasattr(os, 'chmod'):
os.chmod(dst, mode)
if hasattr(os, 'chfl... |
Copy data and mode bits ("cp src dst").
The destination may be a directory. | def copy(src, dst):
"""Copy data and mode bits ("cp src dst").
The destination may be a directory.
"""
if os.path.isdir(dst):
dst = os.path.join(dst, os.path.basename(src))
copyfile(src, dst)
copymode(src, dst) |
Copy data and all stat info ("cp -p src dst").
The destination may be a directory. | def copy2(src, dst):
"""Copy data and all stat info ("cp -p src dst").
The destination may be a directory.
"""
if os.path.isdir(dst):
dst = os.path.join(dst, os.path.basename(src))
copyfile(src, dst)
copystat(src, dst) |
Recursively delete a directory tree.
If ignore_errors is set, errors are ignored; otherwise, if onerror
is set, it is called to handle the error with arguments (func,
path, exc_info) where func is os.listdir, os.remove, or os.rmdir;
path is the argument to that function that caused it to fail; and
... | def rmtree(path, ignore_errors=False, onerror=None):
"""Recursively delete a directory tree.
If ignore_errors is set, errors are ignored; otherwise, if onerror
is set, it is called to handle the error with arguments (func,
path, exc_info) where func is os.listdir, os.remove, or os.rmdir;
path is th... |
Recursively move a file or directory to another location. This is
similar to the Unix "mv" command.
If the destination is a directory or a symlink to a directory, the source
is moved inside the directory. The destination path must not already
exist.
If the destination already exists but is not a d... | def move(src, dst):
"""Recursively move a file or directory to another location. This is
similar to the Unix "mv" command.
If the destination is a directory or a symlink to a directory, the source
is moved inside the directory. The destination path must not already
exist.
If the destination al... |
Returns a gid, given a group name. | def _get_gid(name):
"""Returns a gid, given a group name."""
if getgrnam is None or name is None:
return None
try:
result = getgrnam(name)
except KeyError:
result = None
if result is not None:
return result[2]
return None |
Returns an uid, given a user name. | def _get_uid(name):
"""Returns an uid, given a user name."""
if getpwnam is None or name is None:
return None
try:
result = getpwnam(name)
except KeyError:
result = None
if result is not None:
return result[2]
return None |
Create a (possibly compressed) tar file from all the files under
'base_dir'.
'compress' must be "gzip" (the default), "bzip2", or None.
'owner' and 'group' can be used to define an owner and a group for the
archive that is being built. If not provided, the current owner and group
will be used.
... | def _make_tarball(base_name, base_dir, compress="gzip", verbose=0, dry_run=0,
owner=None, group=None, logger=None):
"""Create a (possibly compressed) tar file from all the files under
'base_dir'.
'compress' must be "gzip" (the default), "bzip2", or None.
'owner' and 'group' can be us... |
Create a zip file from all the files under 'base_dir'.
The output zip file will be named 'base_name' + ".zip". Uses either the
"zipfile" Python module (if available) or the InfoZIP "zip" utility
(if installed and found on the default search path). If neither tool is
available, raises ExecError. Retu... | def _make_zipfile(base_name, base_dir, verbose=0, dry_run=0, logger=None):
"""Create a zip file from all the files under 'base_dir'.
The output zip file will be named 'base_name' + ".zip". Uses either the
"zipfile" Python module (if available) or the InfoZIP "zip" utility
(if installed and found on th... |
Returns a list of supported formats for archiving and unarchiving.
Each element of the returned sequence is a tuple (name, description) | def get_archive_formats():
"""Returns a list of supported formats for archiving and unarchiving.
Each element of the returned sequence is a tuple (name, description)
"""
formats = [(name, registry[2]) for name, registry in
_ARCHIVE_FORMATS.items()]
formats.sort()
return formats |
Registers an archive format.
name is the name of the format. function is the callable that will be
used to create archives. If provided, extra_args is a sequence of
(name, value) tuples that will be passed as arguments to the callable.
description can be provided to describe the format, and will be ret... | def register_archive_format(name, function, extra_args=None, description=''):
"""Registers an archive format.
name is the name of the format. function is the callable that will be
used to create archives. If provided, extra_args is a sequence of
(name, value) tuples that will be passed as arguments to ... |
Create an archive file (eg. zip or tar).
'base_name' is the name of the file to create, minus any format-specific
extension; 'format' is the archive format: one of "zip", "tar", "bztar"
or "gztar".
'root_dir' is a directory that will be the root directory of the
archive; ie. we typically chdir int... | def make_archive(base_name, format, root_dir=None, base_dir=None, verbose=0,
dry_run=0, owner=None, group=None, logger=None):
"""Create an archive file (eg. zip or tar).
'base_name' is the name of the file to create, minus any format-specific
extension; 'format' is the archive format: one ... |
Returns a list of supported formats for unpacking.
Each element of the returned sequence is a tuple
(name, extensions, description) | def get_unpack_formats():
"""Returns a list of supported formats for unpacking.
Each element of the returned sequence is a tuple
(name, extensions, description)
"""
formats = [(name, info[0], info[3]) for name, info in
_UNPACK_FORMATS.items()]
formats.sort()
return formats |
Checks what gets registered as an unpacker. | def _check_unpack_options(extensions, function, extra_args):
"""Checks what gets registered as an unpacker."""
# first make sure no other unpacker is registered for this extension
existing_extensions = {}
for name, info in _UNPACK_FORMATS.items():
for ext in info[0]:
existing_extensi... |
Registers an unpack format.
`name` is the name of the format. `extensions` is a list of extensions
corresponding to the format.
`function` is the callable that will be
used to unpack archives. The callable will receive archives to unpack.
If it's unable to handle an archive, it needs to raise a Re... | def register_unpack_format(name, extensions, function, extra_args=None,
description=''):
"""Registers an unpack format.
`name` is the name of the format. `extensions` is a list of extensions
corresponding to the format.
`function` is the callable that will be
used to unp... |
Unpack zip `filename` to `extract_dir` | def _unpack_zipfile(filename, extract_dir):
"""Unpack zip `filename` to `extract_dir`
"""
try:
import zipfile
except ImportError:
raise ReadError('zlib not supported, cannot unpack this archive.')
if not zipfile.is_zipfile(filename):
raise ReadError("%s is not a zip file" % ... |
Ensure that the parent directory of `path` exists | def _ensure_directory(path):
"""Ensure that the parent directory of `path` exists"""
dirname = os.path.dirname(path)
if not os.path.isdir(dirname):
os.makedirs(dirname) |
Unpack tar/tar.gz/tar.bz2 `filename` to `extract_dir` | def _unpack_tarfile(filename, extract_dir):
"""Unpack tar/tar.gz/tar.bz2 `filename` to `extract_dir`
"""
try:
tarobj = tarfile.open(filename)
except tarfile.TarError:
raise ReadError(
"%s is not a compressed or uncompressed tar file" % filename)
try:
tarobj.extrac... |
Unpack an archive.
`filename` is the name of the archive.
`extract_dir` is the name of the target directory, where the archive
is unpacked. If not provided, the current working directory is used.
`format` is the archive format: one of "zip", "tar", or "gztar". Or any
other registered format. If n... | def unpack_archive(filename, extract_dir=None, format=None):
"""Unpack an archive.
`filename` is the name of the archive.
`extract_dir` is the name of the target directory, where the archive
is unpacked. If not provided, the current working directory is used.
`format` is the archive format: one o... |
Parse an HTML fragment as a string or file-like object into a tree
:arg doc: the fragment to parse as a string or file-like object
:arg container: the container context to parse the fragment in
:arg treebuilder: the treebuilder to use when parsing
:arg namespaceHTMLElements: whether or not to namesp... | def parseFragment(doc, container="div", treebuilder="etree", namespaceHTMLElements=True, **kwargs):
"""Parse an HTML fragment as a string or file-like object into a tree
:arg doc: the fragment to parse as a string or file-like object
:arg container: the container context to parse the fragment in
:arg... |
Parse a HTML document into a well-formed tree
:arg stream: a file-like object or string containing the HTML to be parsed
The optional encoding parameter must be a string that indicates
the encoding. If specified, that encoding will be used,
regardless of any BOM or later d... | def parse(self, stream, *args, **kwargs):
"""Parse a HTML document into a well-formed tree
:arg stream: a file-like object or string containing the HTML to be parsed
The optional encoding parameter must be a string that indicates
the encoding. If specified, that encoding will ... |
Parse a HTML fragment into a well-formed tree fragment
:arg container: name of the element we're setting the innerHTML
property if set to None, default to 'div'
:arg stream: a file-like object or string containing the HTML to be parsed
The optional encoding parameter must be a... | def parseFragment(self, stream, *args, **kwargs):
"""Parse a HTML fragment into a well-formed tree fragment
:arg container: name of the element we're setting the innerHTML
property if set to None, default to 'div'
:arg stream: a file-like object or string containing the HTML to be ... |
Construct tree representation of the pkgs from the index.
The keys of the dict representing the tree will be objects of type
DistPackage and the values will be list of ReqPackage objects.
:param dict index: dist index ie. index of pkgs by their keys
:returns: tree of pkgs and their dependencies
:r... | def construct_tree(index):
"""Construct tree representation of the pkgs from the index.
The keys of the dict representing the tree will be objects of type
DistPackage and the values will be list of ReqPackage objects.
:param dict index: dist index ie. index of pkgs by their keys
:returns: tree of ... |
Sorts the dict representation of the tree
The root packages as well as the intermediate packages are sorted
in the alphabetical order of the package names.
:param dict tree: the pkg dependency tree obtained by calling
`construct_tree` function
:returns: sorted tree
:rtype: col... | def sorted_tree(tree):
"""Sorts the dict representation of the tree
The root packages as well as the intermediate packages are sorted
in the alphabetical order of the package names.
:param dict tree: the pkg dependency tree obtained by calling
`construct_tree` function
:return... |
Find a root in a tree by it's key
:param dict tree: the pkg dependency tree obtained by calling
`construct_tree` function
:param str key: key of the root node to find
:returns: a root node if found else None
:rtype: mixed | def find_tree_root(tree, key):
"""Find a root in a tree by it's key
:param dict tree: the pkg dependency tree obtained by calling
`construct_tree` function
:param str key: key of the root node to find
:returns: a root node if found else None
:rtype: mixed
"""
result = ... |
Reverse the dependency tree.
ie. the keys of the resulting dict are objects of type
ReqPackage and the values are lists of DistPackage objects.
:param dict tree: the pkg dependency tree obtained by calling
`construct_tree` function
:returns: reversed tree
:rtype: dict | def reverse_tree(tree):
"""Reverse the dependency tree.
ie. the keys of the resulting dict are objects of type
ReqPackage and the values are lists of DistPackage objects.
:param dict tree: the pkg dependency tree obtained by calling
`construct_tree` function
:returns: reverse... |
Guess the version of a pkg when pip doesn't provide it
:param str pkg_key: key of the package
:param str default: default version to return if unable to find
:returns: version
:rtype: string | def guess_version(pkg_key, default='?'):
"""Guess the version of a pkg when pip doesn't provide it
:param str pkg_key: key of the package
:param str default: default version to return if unable to find
:returns: version
:rtype: string
"""
try:
m = import_module(pkg_key)
except ... |
Convert tree to string representation
:param dict tree: the package tree
:param bool list_all: whether to list all the pgks at the root
level or only those that are the
sub-dependencies
:param set show_only: set of select packages to be shown in the
... | def render_tree(tree, list_all=True, show_only=None, frozen=False, exclude=None):
"""Convert tree to string representation
:param dict tree: the package tree
:param bool list_all: whether to list all the pgks at the root
level or only those that are the
s... |
Converts the tree into a flat json representation.
The json repr will be a list of hashes, each hash having 2 fields:
- package
- dependencies: list of dependencies
:param dict tree: dependency tree
:param int indent: no. of spaces to indent json
:returns: json representation of the tree
... | def render_json(tree, indent):
"""Converts the tree into a flat json representation.
The json repr will be a list of hashes, each hash having 2 fields:
- package
- dependencies: list of dependencies
:param dict tree: dependency tree
:param int indent: no. of spaces to indent json
:retu... |
Converts the tree into a nested json representation.
The json repr will be a list of hashes, each hash having the following fields:
- package_name
- key
- required_version
- installed_version
- dependencies: list of dependencies
:param dict tree: dependency tree
:param int in... | def render_json_tree(tree, indent):
"""Converts the tree into a nested json representation.
The json repr will be a list of hashes, each hash having the following fields:
- package_name
- key
- required_version
- installed_version
- dependencies: list of dependencies
:param d... |
Output dependency graph as one of the supported GraphViz output formats.
:param dict tree: dependency graph
:param string output_format: output format
:returns: representation of tree in the specified output format
:rtype: str or binary representation depending on the output format | def dump_graphviz(tree, output_format='dot'):
"""Output dependency graph as one of the supported GraphViz output formats.
:param dict tree: dependency graph
:param string output_format: output format
:returns: representation of tree in the specified output format
:rtype: str or binary representatio... |
Dump the data generated by GraphViz to stdout.
:param dump_output: The output from dump_graphviz | def print_graphviz(dump_output):
"""Dump the data generated by GraphViz to stdout.
:param dump_output: The output from dump_graphviz
"""
if hasattr(dump_output, 'encode'):
print(dump_output)
else:
with os.fdopen(sys.stdout.fileno(), 'wb') as bytestream:
bytestream.write(... |
Returns dependencies which are not present or conflict with the
requirements of other packages.
e.g. will warn if pkg1 requires pkg2==2.0 and pkg2==1.0 is installed
:param tree: the requirements tree (dict)
:returns: dict of DistPackage -> list of unsatisfied/unknown ReqPackage
:rtype: dict | def conflicting_deps(tree):
"""Returns dependencies which are not present or conflict with the
requirements of other packages.
e.g. will warn if pkg1 requires pkg2==2.0 and pkg2==1.0 is installed
:param tree: the requirements tree (dict)
:returns: dict of DistPackage -> list of unsatisfied/unknown... |
Return cyclic dependencies as list of tuples
:param list pkgs: pkg_resources.Distribution instances
:param dict pkg_index: mapping of pkgs with their respective keys
:returns: list of tuples representing cyclic dependencies
:rtype: generator | def cyclic_deps(tree):
"""Return cyclic dependencies as list of tuples
:param list pkgs: pkg_resources.Distribution instances
:param dict pkg_index: mapping of pkgs with their respective keys
:returns: list of tuples representing cyclic dependencies
:rtype: generator
"""
key_tree = dict((k... |
If installed version conflicts with required version | def is_conflicting(self):
"""If installed version conflicts with required version"""
# unknown installed version is also considered conflicting
if self.installed_version == self.UNKNOWN_VERSION:
return True
ver_spec = (self.version_spec if self.version_spec else '')
r... |
Check good hashes against ones built from iterable of chunks of
data.
Raise HashMismatch if none match. | def check_against_chunks(self, chunks):
# type: (Iterator[bytes]) -> None
"""Check good hashes against ones built from iterable of chunks of
data.
Raise HashMismatch if none match.
"""
gots = {}
for hash_name in iterkeys(self._allowed):
try:
... |
A converter that allows to replace ``None`` values by *default* or the
result of *factory*.
:param default: Value to be used if ``None`` is passed. Passing an instance
of :class:`attr.Factory` is supported, however the ``takes_self`` option
is *not*.
:param callable factory: A callable that t... | def default_if_none(default=NOTHING, factory=None):
"""
A converter that allows to replace ``None`` values by *default* or the
result of *factory*.
:param default: Value to be used if ``None`` is passed. Passing an instance
of :class:`attr.Factory` is supported, however the ``takes_self`` option... |
Removes nodes by index from an errorpath, relatively to the
basepaths of self.
:param errors: A list of :class:`errors.ValidationError` instances.
:param dp_items: A list of integers, pointing at the nodes to drop from
the :attr:`document_path`.
:param sp_it... | def _drop_nodes_from_errorpaths(self, _errors, dp_items, sp_items):
""" Removes nodes by index from an errorpath, relatively to the
basepaths of self.
:param errors: A list of :class:`errors.ValidationError` instances.
:param dp_items: A list of integers, pointing at the nodes to dr... |
Searches for a field as defined by path. This method is used by the
``dependency`` evaluation logic.
:param path: Path elements are separated by a ``.``. A leading ``^``
indicates that the path relates to the document root,
otherwise it relates to the curre... | def _lookup_field(self, path):
""" Searches for a field as defined by path. This method is used by the
``dependency`` evaluation logic.
:param path: Path elements are separated by a ``.``. A leading ``^``
indicates that the path relates to the document root,
... |
The constraints that can be used for the 'type' rule.
Type: A tuple of strings. | def types(cls):
""" The constraints that can be used for the 'type' rule.
Type: A tuple of strings. """
redundant_types = \
set(cls.types_mapping) & set(cls._types_from_methods)
if redundant_types:
warn("These types are defined both with a method and in the"
... |
Returns the document normalized according to the specified rules
of a schema.
:param document: The document to normalize.
:type document: any :term:`mapping`
:param schema: The validation schema. Defaults to :obj:`None`. If not
provided here, the schema must have ... | def normalized(self, document, schema=None, always_return_document=False):
""" Returns the document normalized according to the specified rules
of a schema.
:param document: The document to normalize.
:type document: any :term:`mapping`
:param schema: The validation schema. Defa... |
Drops rules from the queue of the rules that still need to be
evaluated for the currently processed field.
If no arguments are given, the whole queue is emptied. | def _drop_remaining_rules(self, *rules):
""" Drops rules from the queue of the rules that still need to be
evaluated for the currently processed field.
If no arguments are given, the whole queue is emptied.
"""
if rules:
for rule in rules:
try:... |
{'oneof': [
{'type': 'callable'},
{'type': 'list',
'schema': {'oneof': [{'type': 'callable'},
{'type': 'string'}]}},
{'type': 'string'}
]} | def _normalize_coerce(self, mapping, schema):
""" {'oneof': [
{'type': 'callable'},
{'type': 'list',
'schema': {'oneof': [{'type': 'callable'},
{'type': 'string'}]}},
{'type': 'string'}
]} """
... |
{'type': 'boolean'} | def _normalize_purge_unknown(mapping, schema):
""" {'type': 'boolean'} """
for field in tuple(mapping):
if field not in schema:
del mapping[field]
return mapping |
{'type': 'hashable'} | def _normalize_rename(self, mapping, schema, field):
""" {'type': 'hashable'} """
if 'rename' in schema[field]:
mapping[schema[field]['rename']] = mapping[field]
del mapping[field] |
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