INSTRUCTION stringlengths 1 46.3k | RESPONSE stringlengths 75 80.2k |
|---|---|
Given a path or URI, check for a ref and split it from the path if it is present,
returning a tuple of the original input and the ref or None.
:param AnyStr uri: The path or URI to split
:returns: A 2-tuple of the path or URI and the ref
:rtype: Tuple[AnyStr, Optional[AnyStr]] | def split_ref_from_uri(uri):
# type: (AnyStr) -> Tuple[AnyStr, Optional[AnyStr]]
"""
Given a path or URI, check for a ref and split it from the path if it is present,
returning a tuple of the original input and the ref or None.
:param AnyStr uri: The path or URI to split
:returns: A 2-tuple of ... |
Get a standardized key for an InstallRequirement. | def key_from_ireq(ireq):
"""Get a standardized key for an InstallRequirement."""
if ireq.req is None and ireq.link is not None:
return str(ireq.link)
else:
return key_from_req(ireq.req) |
Get an all-lowercase version of the requirement's name. | def key_from_req(req):
"""Get an all-lowercase version of the requirement's name."""
if hasattr(req, "key"):
# from pkg_resources, such as installed dists for pip-sync
key = req.key
else:
# from packaging, such as install requirements from requirements.txt
key = req.name
... |
Formats a packaging.requirements.Requirement with a lowercase name.
This is simply a copy of
https://github.com/pypa/packaging/blob/16.8/packaging/requirements.py#L109-L124
modified to lowercase the dependency name.
Previously, we were invoking the original Requirement.__str__ method and
lower-cas... | def _requirement_to_str_lowercase_name(requirement):
"""
Formats a packaging.requirements.Requirement with a lowercase name.
This is simply a copy of
https://github.com/pypa/packaging/blob/16.8/packaging/requirements.py#L109-L124
modified to lowercase the dependency name.
Previously, we were i... |
Generic formatter for pretty printing InstallRequirements to the terminal
in a less verbose way than using its `__str__` method. | def format_requirement(ireq):
"""
Generic formatter for pretty printing InstallRequirements to the terminal
in a less verbose way than using its `__str__` method.
"""
if ireq.editable:
line = "-e {}".format(ireq.link)
else:
line = _requirement_to_str_lowercase_name(ireq.req)
... |
Generic formatter for pretty printing the specifier part of
InstallRequirements to the terminal. | def format_specifier(ireq):
"""
Generic formatter for pretty printing the specifier part of
InstallRequirements to the terminal.
"""
# TODO: Ideally, this is carried over to the pip library itself
specs = ireq.specifier._specs if ireq.req is not None else []
specs = sorted(specs, key=lambda ... |
Pulls out the (name: str, version:str, extras:(str)) tuple from the pinned InstallRequirement. | def as_tuple(ireq):
"""
Pulls out the (name: str, version:str, extras:(str)) tuple from the pinned InstallRequirement.
"""
if not is_pinned_requirement(ireq):
raise TypeError("Expected a pinned InstallRequirement, got {}".format(ireq))
name = key_from_req(ireq.req)
version = first(ireq... |
Like groupby(), but sorts the input on the group key first. | def full_groupby(iterable, key=None):
"""
Like groupby(), but sorts the input on the group key first.
"""
return groupby(sorted(iterable, key=key), key=key) |
Builds a dict-based lookup table (index) elegantly.
Supports building normal and unique lookup tables. For example:
>>> assert lookup_table(
... ['foo', 'bar', 'baz', 'qux', 'quux'], lambda s: s[0]) == {
... 'b': {'bar', 'baz'},
... 'f': {'foo'},
... 'q': {'quux', 'qux'}
.... | def lookup_table(values, key=None, keyval=None, unique=False, use_lists=False):
"""
Builds a dict-based lookup table (index) elegantly.
Supports building normal and unique lookup tables. For example:
>>> assert lookup_table(
... ['foo', 'bar', 'baz', 'qux', 'quux'], lambda s: s[0]) == {
.... |
Generates an :class:`~pip._internal.req.req_install.InstallRequirement`.
Create an InstallRequirement from the supplied metadata.
:param name: The requirement's name.
:type name: str
:param version: The requirement version (must be pinned).
:type version: str.
:param extras: The desired extras... | def make_install_requirement(name, version, extras, markers, constraint=False):
"""
Generates an :class:`~pip._internal.req.req_install.InstallRequirement`.
Create an InstallRequirement from the supplied metadata.
:param name: The requirement's name.
:type name: str
:param version: The require... |
Get a cleaned list of all the candidates with valid specifiers in the `requires_python` attributes. | def clean_requires_python(candidates):
"""Get a cleaned list of all the candidates with valid specifiers in the `requires_python` attributes."""
all_candidates = []
sys_version = ".".join(map(str, sys.version_info[:3]))
from packaging.version import parse as parse_version
py_version = parse_version... |
Given a packager name, get the variants of its name for both the canonicalized
and "safe" forms.
:param AnyStr pkg: The package to lookup
:returns: A list of names.
:rtype: Set | def get_name_variants(pkg):
# type: (STRING_TYPE) -> Set[STRING_TYPE]
"""
Given a packager name, get the variants of its name for both the canonicalized
and "safe" forms.
:param AnyStr pkg: The package to lookup
:returns: A list of names.
:rtype: Set
"""
if not isinstance(pkg, six.... |
Detect the best version depending on the fields used. | def _best_version(fields):
"""Detect the best version depending on the fields used."""
def _has_marker(keys, markers):
for marker in markers:
if marker in keys:
return True
return False
keys = []
for key, value in fields.items():
if value in ([], 'UNK... |
Return the distribution name with version.
If for_filename is true, return a filename-escaped form. | def _get_name_and_version(name, version, for_filename=False):
"""Return the distribution name with version.
If for_filename is true, return a filename-escaped form."""
if for_filename:
# For both name and version any runs of non-alphanumeric or '.'
# characters are replaced with a single '-... |
Read the metadata values from a file path. | def read(self, filepath):
"""Read the metadata values from a file path."""
fp = codecs.open(filepath, 'r', encoding='utf-8')
try:
self.read_file(fp)
finally:
fp.close() |
Write the metadata fields to filepath. | def write(self, filepath, skip_unknown=False):
"""Write the metadata fields to filepath."""
fp = codecs.open(filepath, 'w', encoding='utf-8')
try:
self.write_file(fp, skip_unknown)
finally:
fp.close() |
Write the PKG-INFO format data to a file object. | def write_file(self, fileobject, skip_unknown=False):
"""Write the PKG-INFO format data to a file object."""
self.set_metadata_version()
for field in _version2fieldlist(self['Metadata-Version']):
values = self.get(field)
if skip_unknown and values in ('UNKNOWN', [], ['UN... |
Set metadata values from the given iterable `other` and kwargs.
Behavior is like `dict.update`: If `other` has a ``keys`` method,
they are looped over and ``self[key]`` is assigned ``other[key]``.
Else, ``other`` is an iterable of ``(key, value)`` iterables.
Keys that don't match a met... | def update(self, other=None, **kwargs):
"""Set metadata values from the given iterable `other` and kwargs.
Behavior is like `dict.update`: If `other` has a ``keys`` method,
they are looped over and ``self[key]`` is assigned ``other[key]``.
Else, ``other`` is an iterable of ``(key, value... |
Control then set a metadata field. | def set(self, name, value):
"""Control then set a metadata field."""
name = self._convert_name(name)
if ((name in _ELEMENTSFIELD or name == 'Platform') and
not isinstance(value, (list, tuple))):
if isinstance(value, string_types):
value = [v.strip() for v... |
Get a metadata field. | def get(self, name, default=_MISSING):
"""Get a metadata field."""
name = self._convert_name(name)
if name not in self._fields:
if default is _MISSING:
default = self._default_value(name)
return default
if name in _UNICODEFIELDS:
value ... |
Return fields as a dict.
Field names will be converted to use the underscore-lowercase style
instead of hyphen-mixed case (i.e. home_page instead of Home-page). | def todict(self, skip_missing=False):
"""Return fields as a dict.
Field names will be converted to use the underscore-lowercase style
instead of hyphen-mixed case (i.e. home_page instead of Home-page).
"""
self.set_metadata_version()
mapping_1_0 = (
('metada... |
Base method to get dependencies, given a set of extras
to satisfy and an optional environment context.
:param reqts: A list of sometimes-wanted dependencies,
perhaps dependent on extras and environment.
:param extras: A list of optional components being requested.
:... | def get_requirements(self, reqts, extras=None, env=None):
"""
Base method to get dependencies, given a set of extras
to satisfy and an optional environment context.
:param reqts: A list of sometimes-wanted dependencies,
perhaps dependent on extras and environment.
... |
Remove item from six.moves. | def remove_move(name):
"""Remove item from six.moves."""
try:
delattr(_MovedItems, name)
except AttributeError:
try:
del moves.__dict__[name]
except KeyError:
raise AttributeError("no such move, %r" % (name,)) |
Coerce **s** to six.binary_type.
For Python 2:
- `unicode` -> encoded to `str`
- `str` -> `str`
For Python 3:
- `str` -> encoded to `bytes`
- `bytes` -> `bytes` | def ensure_binary(s, encoding='utf-8', errors='strict'):
"""Coerce **s** to six.binary_type.
For Python 2:
- `unicode` -> encoded to `str`
- `str` -> `str`
For Python 3:
- `str` -> encoded to `bytes`
- `bytes` -> `bytes`
"""
if isinstance(s, text_type):
return s.enc... |
Coerce *s* to `str`.
For Python 2:
- `unicode` -> encoded to `str`
- `str` -> `str`
For Python 3:
- `str` -> `str`
- `bytes` -> decoded to `str` | def ensure_str(s, encoding='utf-8', errors='strict'):
"""Coerce *s* to `str`.
For Python 2:
- `unicode` -> encoded to `str`
- `str` -> `str`
For Python 3:
- `str` -> `str`
- `bytes` -> decoded to `str`
"""
if not isinstance(s, (text_type, binary_type)):
raise TypeEr... |
Coerce *s* to six.text_type.
For Python 2:
- `unicode` -> `unicode`
- `str` -> `unicode`
For Python 3:
- `str` -> `str`
- `bytes` -> decoded to `str` | def ensure_text(s, encoding='utf-8', errors='strict'):
"""Coerce *s* to six.text_type.
For Python 2:
- `unicode` -> `unicode`
- `str` -> `unicode`
For Python 3:
- `str` -> `str`
- `bytes` -> decoded to `str`
"""
if isinstance(s, binary_type):
return s.decode(encodin... |
A decorator that defines __unicode__ and __str__ methods under Python 2.
Under Python 3 it does nothing.
To support Python 2 and 3 with a single code base, define a __str__ method
returning text and apply this decorator to the class. | def python_2_unicode_compatible(klass):
"""
A decorator that defines __unicode__ and __str__ methods under Python 2.
Under Python 3 it does nothing.
To support Python 2 and 3 with a single code base, define a __str__ method
returning text and apply this decorator to the class.
"""
if PY2:
... |
Parse a requirements file and yield InstallRequirement instances.
:param filename: Path or url of requirements file.
:param finder: Instance of pip.index.PackageFinder.
:param comes_from: Origin description of requirements.
:param options: cli options.
:param session: Instance of p... | def parse_requirements(
filename, # type: str
finder=None, # type: Optional[PackageFinder]
comes_from=None, # type: Optional[str]
options=None, # type: Optional[optparse.Values]
session=None, # type: Optional[PipSession]
constraint=False, # type: bool
wheel_cache=None, # type: Optiona... |
Split, filter, and join lines, and return a line iterator
:param content: the content of the requirements file
:param options: cli options | def preprocess(content, options):
# type: (Text, Optional[optparse.Values]) -> ReqFileLines
"""Split, filter, and join lines, and return a line iterator
:param content: the content of the requirements file
:param options: cli options
"""
lines_enum = enumerate(content.splitlines(), start=1) # ... |
Process a single requirements line; This can result in creating/yielding
requirements, or updating the finder.
For lines that contain requirements, the only options that have an effect
are from SUPPORTED_OPTIONS_REQ, and they are scoped to the
requirement. Other options from SUPPORTED_OPTIONS may be pr... | def process_line(
line, # type: Text
filename, # type: str
line_number, # type: int
finder=None, # type: Optional[PackageFinder]
comes_from=None, # type: Optional[str]
options=None, # type: Optional[optparse.Values]
session=None, # type: Optional[PipSession]
wheel_cache=None, # t... |
Break up the line into an args and options string. We only want to shlex
(and then optparse) the options, not the args. args can contain markers
which are corrupted by shlex. | def break_args_options(line):
# type: (Text) -> Tuple[str, Text]
"""Break up the line into an args and options string. We only want to shlex
(and then optparse) the options, not the args. args can contain markers
which are corrupted by shlex.
"""
tokens = line.split(' ')
args = []
opti... |
Return a parser for parsing requirement lines | def build_parser(line):
# type: (Text) -> optparse.OptionParser
"""
Return a parser for parsing requirement lines
"""
parser = optparse.OptionParser(add_help_option=False)
option_factories = SUPPORTED_OPTIONS + SUPPORTED_OPTIONS_REQ
for option_factory in option_factories:
option = o... |
Joins a line ending in '\' with the previous line (except when following
comments). The joined line takes on the index of the first line. | def join_lines(lines_enum):
# type: (ReqFileLines) -> ReqFileLines
"""Joins a line ending in '\' with the previous line (except when following
comments). The joined line takes on the index of the first line.
"""
primary_line_number = None
new_line = [] # type: List[Text]
for line_number, l... |
Strips comments and filter empty lines. | def ignore_comments(lines_enum):
# type: (ReqFileLines) -> ReqFileLines
"""
Strips comments and filter empty lines.
"""
for line_number, line in lines_enum:
line = COMMENT_RE.sub('', line)
line = line.strip()
if line:
yield line_number, line |
Skip lines that match '--skip-requirements-regex' pattern
Note: the regex pattern is only built once | def skip_regex(lines_enum, options):
# type: (ReqFileLines, Optional[optparse.Values]) -> ReqFileLines
"""
Skip lines that match '--skip-requirements-regex' pattern
Note: the regex pattern is only built once
"""
skip_regex = options.skip_requirements_regex if options else None
if skip_regex... |
Replace all environment variables that can be retrieved via `os.getenv`.
The only allowed format for environment variables defined in the
requirement file is `${MY_VARIABLE_1}` to ensure two things:
1. Strings that contain a `$` aren't accidentally (partially) expanded.
2. Ensure consistency across pl... | def expand_env_variables(lines_enum):
# type: (ReqFileLines) -> ReqFileLines
"""Replace all environment variables that can be retrieved via `os.getenv`.
The only allowed format for environment variables defined in the
requirement file is `${MY_VARIABLE_1}` to ensure two things:
1. Strings that con... |
Restore the original SIGINT handler after finishing.
This should happen regardless of whether the progress display finishes
normally, or gets interrupted. | def finish(self):
"""
Restore the original SIGINT handler after finishing.
This should happen regardless of whether the progress display finishes
normally, or gets interrupted.
"""
super(InterruptibleMixin, self).finish()
signal(SIGINT, self.original_handler) |
Call self.finish() before delegating to the original SIGINT handler.
This handler should only be in place while the progress display is
active. | def handle_sigint(self, signum, frame):
"""
Call self.finish() before delegating to the original SIGINT handler.
This handler should only be in place while the progress display is
active.
"""
self.finish()
self.original_handler(signum, frame) |
This method iterates over all fields that are defined and yields
``(key, value)`` tuples. Per default all fields are returned, but
it's possible to limit that to some fields by providing the `only`
parameter or to exclude some using the `exclude` parameter. Both
should be sets or tuple... | def iter_fields(self, exclude=None, only=None):
"""This method iterates over all fields that are defined and yields
``(key, value)`` tuples. Per default all fields are returned, but
it's possible to limit that to some fields by providing the `only`
parameter or to exclude some using the... |
Iterates over all direct child nodes of the node. This iterates
over all fields and yields the values of they are nodes. If the value
of a field is a list all the nodes in that list are returned. | def iter_child_nodes(self, exclude=None, only=None):
"""Iterates over all direct child nodes of the node. This iterates
over all fields and yields the values of they are nodes. If the value
of a field is a list all the nodes in that list are returned.
"""
for field, item in sel... |
Find all the nodes of a given type. If the type is a tuple,
the check is performed for any of the tuple items. | def find_all(self, node_type):
"""Find all the nodes of a given type. If the type is a tuple,
the check is performed for any of the tuple items.
"""
for child in self.iter_child_nodes():
if isinstance(child, node_type):
yield child
for result in c... |
Reset the context of a node and all child nodes. Per default the
parser will all generate nodes that have a 'load' context as it's the
most common one. This method is used in the parser to set assignment
targets and other nodes to a store context. | def set_ctx(self, ctx):
"""Reset the context of a node and all child nodes. Per default the
parser will all generate nodes that have a 'load' context as it's the
most common one. This method is used in the parser to set assignment
targets and other nodes to a store context.
"""... |
Set the line numbers of the node and children. | def set_lineno(self, lineno, override=False):
"""Set the line numbers of the node and children."""
todo = deque([self])
while todo:
node = todo.popleft()
if 'lineno' in node.attributes:
if node.lineno is None or override:
node.lineno = ... |
Set the environment for all nodes. | def set_environment(self, environment):
"""Set the environment for all nodes."""
todo = deque([self])
while todo:
node = todo.popleft()
node.environment = environment
todo.extend(node.iter_child_nodes())
return self |
Return a const object if the value is representable as
constant value in the generated code, otherwise it will raise
an `Impossible` exception. | def from_untrusted(cls, value, lineno=None, environment=None):
"""Return a const object if the value is representable as
constant value in the generated code, otherwise it will raise
an `Impossible` exception.
"""
from .compiler import has_safe_repr
if not has_safe_repr(v... |
Build a wheel from a source directory using PEP 517 hooks.
:param str source_dir: Source directory containing pyproject.toml
:param str wheel_dir: Target directory to create wheel in
:param dict config_settings: Options to pass to build backend
This is a blocking function which will run pip in a subpr... | def build_wheel(source_dir, wheel_dir, config_settings=None):
"""Build a wheel from a source directory using PEP 517 hooks.
:param str source_dir: Source directory containing pyproject.toml
:param str wheel_dir: Target directory to create wheel in
:param dict config_settings: Options to pass to build b... |
Build an sdist from a source directory using PEP 517 hooks.
:param str source_dir: Source directory containing pyproject.toml
:param str sdist_dir: Target directory to place sdist in
:param dict config_settings: Options to pass to build backend
This is a blocking function which will run pip in a subpr... | def build_sdist(source_dir, sdist_dir, config_settings=None):
"""Build an sdist from a source directory using PEP 517 hooks.
:param str source_dir: Source directory containing pyproject.toml
:param str sdist_dir: Target directory to place sdist in
:param dict config_settings: Options to pass to build b... |
Install dependencies into this env by calling pip in a subprocess | def pip_install(self, reqs):
"""Install dependencies into this env by calling pip in a subprocess"""
if not reqs:
return
log.info('Calling pip to install %s', reqs)
check_call([
sys.executable, '-m', 'pip', 'install', '--ignore-installed',
'--prefix', ... |
Move all the children of the current node to newParent.
This is needed so that trees that don't store text as nodes move the
text in the correct way
:arg newParent: the node to move all this node's children to | def reparentChildren(self, newParent):
"""Move all the children of the current node to newParent.
This is needed so that trees that don't store text as nodes move the
text in the correct way
:arg newParent: the node to move all this node's children to
"""
# XXX - should... |
Check if an element exists between the end of the active
formatting elements and the last marker. If it does, return it, else
return false | def elementInActiveFormattingElements(self, name):
"""Check if an element exists between the end of the active
formatting elements and the last marker. If it does, return it, else
return false"""
for item in self.activeFormattingElements[::-1]:
# Check for Marker first becau... |
Create an element but don't insert it anywhere | def createElement(self, token):
"""Create an element but don't insert it anywhere"""
name = token["name"]
namespace = token.get("namespace", self.defaultNamespace)
element = self.elementClass(name, namespace)
element.attributes = token["data"]
return element |
Switch the function used to insert an element from the
normal one to the misnested table one and back again | def _setInsertFromTable(self, value):
"""Switch the function used to insert an element from the
normal one to the misnested table one and back again"""
self._insertFromTable = value
if value:
self.insertElement = self.insertElementTable
else:
self.insertEl... |
Create an element and insert it into the tree | def insertElementTable(self, token):
"""Create an element and insert it into the tree"""
element = self.createElement(token)
if self.openElements[-1].name not in tableInsertModeElements:
return self.insertElementNormal(token)
else:
# We should be in the InTable mo... |
Insert text data. | def insertText(self, data, parent=None):
"""Insert text data."""
if parent is None:
parent = self.openElements[-1]
if (not self.insertFromTable or (self.insertFromTable and
self.openElements[-1].name
n... |
Get the foster parent element, and sibling to insert before
(or None) when inserting a misnested table node | def getTableMisnestedNodePosition(self):
"""Get the foster parent element, and sibling to insert before
(or None) when inserting a misnested table node"""
# The foster parent element is the one which comes before the most
# recently opened table element
# XXX - this is really ine... |
Return the final fragment | def getFragment(self):
"""Return the final fragment"""
# assert self.innerHTML
fragment = self.fragmentClass()
self.openElements[0].reparentChildren(fragment)
return fragment |
Evaluate a marker.
Return the boolean from evaluating the given marker against the
environment. environment is an optional argument to override all or
part of the determined environment.
The environment is determined from the current Python process. | def evaluate(self, environment=None):
"""Evaluate a marker.
Return the boolean from evaluating the given marker against the
environment. environment is an optional argument to override all or
part of the determined environment.
The environment is determined from the current Pyt... |
Monkey patch pip.Wheel to allow all wheels
The usual checks against platforms and Python versions are ignored to allow
fetching all available entries in PyPI. This also saves the candidate cache
and set a new one, or else the results from the previous non-patched calls
will interfere. | def _allow_all_wheels():
"""Monkey patch pip.Wheel to allow all wheels
The usual checks against platforms and Python versions are ignored to allow
fetching all available entries in PyPI. This also saves the candidate cache
and set a new one, or else the results from the previous non-patched calls
w... |
Create a temporary directory and store its path in self.path | def create(self):
"""Create a temporary directory and store its path in self.path
"""
if self.path is not None:
logger.debug(
"Skipped creation of temporary directory: {}".format(self.path)
)
return
# We realpath here because some syste... |
Generates a series of temporary names.
The algorithm replaces the leading characters in the name
with ones that are valid filesystem characters, but are not
valid package names (for both Python and pip definitions of
package). | def _generate_names(cls, name):
"""Generates a series of temporary names.
The algorithm replaces the leading characters in the name
with ones that are valid filesystem characters, but are not
valid package names (for both Python and pip definitions of
package).
"""
... |
Remove the temporary directory created and reset state | def cleanup(self):
"""Remove the temporary directory created and reset state
"""
if getattr(self._finalizer, "detach", None) and self._finalizer.detach():
if os.path.exists(self.path):
try:
rmtree(self.path)
except OSError:
... |
Detect the encoding of the given byte string.
:param byte_str: The byte sequence to examine.
:type byte_str: ``bytes`` or ``bytearray`` | def detect(byte_str):
"""
Detect the encoding of the given byte string.
:param byte_str: The byte sequence to examine.
:type byte_str: ``bytes`` or ``bytearray``
"""
if not isinstance(byte_str, bytearray):
if not isinstance(byte_str, bytes):
raise TypeError('Expecte... |
Convert escaped markup back into a text string. This replaces
HTML entities with the characters they represent.
>>> Markup('Main » <em>About</em>').unescape()
'Main » <em>About</em>' | def unescape(self):
"""Convert escaped markup back into a text string. This replaces
HTML entities with the characters they represent.
>>> Markup('Main » <em>About</em>').unescape()
'Main » <em>About</em>'
"""
from ._constants import HTML_ENTITIES
def hand... |
Escape a string. Calls :func:`escape` and ensures that for
subclasses the correct type is returned. | def escape(cls, s):
"""Escape a string. Calls :func:`escape` and ensures that for
subclasses the correct type is returned.
"""
rv = escape(s)
if rv.__class__ is not cls:
return cls(rv)
return rv |
Ensure that if a link can be found for this, that it is found.
Note that self.link may still be None - if Upgrade is False and the
requirement is already installed.
If require_hashes is True, don't use the wheel cache, because cached
wheels, always built locally, have different hashes ... | def populate_link(self, finder, upgrade, require_hashes):
# type: (PackageFinder, bool, bool) -> None
"""Ensure that if a link can be found for this, that it is found.
Note that self.link may still be None - if Upgrade is False and the
requirement is already installed.
If requi... |
Return a hash-comparer that considers my option- and URL-based
hashes to be known-good.
Hashes in URLs--ones embedded in the requirements file, not ones
downloaded from an index server--are almost peers with ones from
flags. They satisfy --require-hashes (whether it was implicitly or
... | def hashes(self, trust_internet=True):
# type: (bool) -> Hashes
"""Return a hash-comparer that considers my option- and URL-based
hashes to be known-good.
Hashes in URLs--ones embedded in the requirements file, not ones
downloaded from an index server--are almost peers with ones... |
Move self._temp_build_dir to self._ideal_build_dir/self.req.name
For some requirements (e.g. a path to a directory), the name of the
package is not available until we run egg_info, so the build_location
will return a temporary directory and store the _ideal_build_dir.
This is only call... | def _correct_build_location(self):
# type: () -> None
"""Move self._temp_build_dir to self._ideal_build_dir/self.req.name
For some requirements (e.g. a path to a directory), the name of the
package is not available until we run egg_info, so the build_location
will return a tempo... |
Remove the source files from this requirement, if they are marked
for deletion | def remove_temporary_source(self):
# type: () -> None
"""Remove the source files from this requirement, if they are marked
for deletion"""
if self.source_dir and os.path.exists(
os.path.join(self.source_dir, PIP_DELETE_MARKER_FILENAME)):
logger.debug('Removing... |
Find an installed distribution that satisfies or conflicts
with this requirement, and set self.satisfied_by or
self.conflicts_with appropriately. | def check_if_exists(self, use_user_site):
# type: (bool) -> bool
"""Find an installed distribution that satisfies or conflicts
with this requirement, and set self.satisfied_by or
self.conflicts_with appropriately.
"""
if self.req is None:
return False
... |
Ensure that project metadata is available.
Under PEP 517, call the backend hook to prepare the metadata.
Under legacy processing, call setup.py egg-info. | def prepare_metadata(self):
# type: () -> None
"""Ensure that project metadata is available.
Under PEP 517, call the backend hook to prepare the metadata.
Under legacy processing, call setup.py egg-info.
"""
assert self.source_dir
with indent_log():
... |
Load the pyproject.toml file.
After calling this routine, all of the attributes related to PEP 517
processing for this requirement have been set. In particular, the
use_pep517 attribute can be used to determine whether we should
follow the PEP 517 or legacy (setup.py) code path. | def load_pyproject_toml(self):
# type: () -> None
"""Load the pyproject.toml file.
After calling this routine, all of the attributes related to PEP 517
processing for this requirement have been set. In particular, the
use_pep517 attribute can be used to determine whether we shou... |
Return a pkg_resources.Distribution for this requirement | def get_dist(self):
# type: () -> Distribution
"""Return a pkg_resources.Distribution for this requirement"""
if self.metadata_directory:
base_dir, distinfo = os.path.split(self.metadata_directory)
metadata = pkg_resources.PathMetadata(
base_dir, self.meta... |
Uninstall the distribution currently satisfying this requirement.
Prompts before removing or modifying files unless
``auto_confirm`` is True.
Refuses to delete or modify files outside of ``sys.prefix`` -
thus uninstallation within a virtual environment can only
modify that virt... | def uninstall(self, auto_confirm=False, verbose=False,
use_user_site=False):
# type: (bool, bool, bool) -> Optional[UninstallPathSet]
"""
Uninstall the distribution currently satisfying this requirement.
Prompts before removing or modifying files unless
``auto_... |
Marshal cmd line args into a requirement set. | def populate_requirement_set(requirement_set, # type: RequirementSet
args, # type: List[str]
options, # type: Values
finder, # type: PackageFinder
session, ... |
Create a package finder appropriate to this requirement command. | def _build_package_finder(
self,
options, # type: Values
session, # type: PipSession
platform=None, # type: Optional[str]
python_versions=None, # type: Optional[List[str]]
abi=None, # type: Optional[str]
implementa... |
Represent a list of integers as a sequence of ranges:
((start_0, end_0), (start_1, end_1), ...), such that the original
integers are exactly those x such that start_i <= x < end_i for some i.
Ranges are encoded as single integers (start << 32 | end), not as tuples. | def intranges_from_list(list_):
"""Represent a list of integers as a sequence of ranges:
((start_0, end_0), (start_1, end_1), ...), such that the original
integers are exactly those x such that start_i <= x < end_i for some i.
Ranges are encoded as single integers (start << 32 | end), not as tuples.
... |
Determine if `int_` falls into one of the ranges in `ranges`. | def intranges_contain(int_, ranges):
"""Determine if `int_` falls into one of the ranges in `ranges`."""
tuple_ = _encode_range(int_, 0)
pos = bisect.bisect_left(ranges, tuple_)
# we could be immediately ahead of a tuple (start, end)
# with start < int_ <= end
if pos > 0:
left, right = _... |
Return the hash digest of a file. | def _hash_of_file(path, algorithm):
"""Return the hash digest of a file."""
with open(path, 'rb') as archive:
hash = hashlib.new(algorithm)
for chunk in read_chunks(archive):
hash.update(chunk)
return hash.hexdigest() |
Return information about the OS distribution that is compatible
with Python's :func:`platform.linux_distribution`, supporting a subset
of its parameters.
For details, see :func:`distro.linux_distribution`. | def linux_distribution(self, full_distribution_name=True):
"""
Return information about the OS distribution that is compatible
with Python's :func:`platform.linux_distribution`, supporting a subset
of its parameters.
For details, see :func:`distro.linux_distribution`.
""... |
Return the distro ID of the OS distribution, as a string.
For details, see :func:`distro.id`. | def id(self):
"""Return the distro ID of the OS distribution, as a string.
For details, see :func:`distro.id`.
"""
def normalize(distro_id, table):
distro_id = distro_id.lower().replace(' ', '_')
return table.get(distro_id, distro_id)
distro_id = self.os... |
Return the name of the OS distribution, as a string.
For details, see :func:`distro.name`. | def name(self, pretty=False):
"""
Return the name of the OS distribution, as a string.
For details, see :func:`distro.name`.
"""
name = self.os_release_attr('name') \
or self.lsb_release_attr('distributor_id') \
or self.distro_release_attr('name') \
... |
Return the version of the OS distribution, as a string.
For details, see :func:`distro.version`. | def version(self, pretty=False, best=False):
"""
Return the version of the OS distribution, as a string.
For details, see :func:`distro.version`.
"""
versions = [
self.os_release_attr('version_id'),
self.lsb_release_attr('release'),
self.distr... |
Return the version of the OS distribution, as a tuple of version
numbers.
For details, see :func:`distro.version_parts`. | def version_parts(self, best=False):
"""
Return the version of the OS distribution, as a tuple of version
numbers.
For details, see :func:`distro.version_parts`.
"""
version_str = self.version(best=best)
if version_str:
version_regex = re.compile(r'(\... |
Return certain machine-readable information about the OS
distribution.
For details, see :func:`distro.info`. | def info(self, pretty=False, best=False):
"""
Return certain machine-readable information about the OS
distribution.
For details, see :func:`distro.info`.
"""
return dict(
id=self.id(),
version=self.version(pretty, best),
version_parts... |
Get the information items from the specified os-release file.
Returns:
A dictionary containing all information items. | def _os_release_info(self):
"""
Get the information items from the specified os-release file.
Returns:
A dictionary containing all information items.
"""
if os.path.isfile(self.os_release_file):
with open(self.os_release_file) as release_file:
... |
Get the information items from the lsb_release command output.
Returns:
A dictionary containing all information items. | def _lsb_release_info(self):
"""
Get the information items from the lsb_release command output.
Returns:
A dictionary containing all information items.
"""
if not self.include_lsb:
return {}
with open(os.devnull, 'w') as devnull:
try:
... |
Parse the output of the lsb_release command.
Parameters:
* lines: Iterable through the lines of the lsb_release output.
Each line must be a unicode string or a UTF-8 encoded byte
string.
Returns:
A dictionary containing all information items. | def _parse_lsb_release_content(lines):
"""
Parse the output of the lsb_release command.
Parameters:
* lines: Iterable through the lines of the lsb_release output.
Each line must be a unicode string or a UTF-8 encoded byte
string.
Returns:
... |
Get the information items from the specified distro release file.
Returns:
A dictionary containing all information items. | def _distro_release_info(self):
"""
Get the information items from the specified distro release file.
Returns:
A dictionary containing all information items.
"""
if self.distro_release_file:
# If it was specified, we use it and parse what we can, even if
... |
Parse a distro release file.
Parameters:
* filepath: Path name of the distro release file.
Returns:
A dictionary containing all information items. | def _parse_distro_release_file(self, filepath):
"""
Parse a distro release file.
Parameters:
* filepath: Path name of the distro release file.
Returns:
A dictionary containing all information items.
"""
try:
with open(filepath) as fp:
... |
Parse a line from a distro release file.
Parameters:
* line: Line from the distro release file. Must be a unicode string
or a UTF-8 encoded byte string.
Returns:
A dictionary containing all information items. | def _parse_distro_release_content(line):
"""
Parse a line from a distro release file.
Parameters:
* line: Line from the distro release file. Must be a unicode string
or a UTF-8 encoded byte string.
Returns:
A dictionary containing all information ite... |
Calculate the dependency tree for the package `root_key` and return
a collection of all its dependencies. Uses a DFS traversal algorithm.
`installed_keys` should be a {key: requirement} mapping, e.g.
{'django': from_line('django==1.8')}
`root_key` should be the key to return the dependency tree fo... | def dependency_tree(installed_keys, root_key):
"""
Calculate the dependency tree for the package `root_key` and return
a collection of all its dependencies. Uses a DFS traversal algorithm.
`installed_keys` should be a {key: requirement} mapping, e.g.
{'django': from_line('django==1.8')}
`r... |
Returns a collection of package names to ignore when performing pip-sync,
based on the currently installed environment. For example, when pip-tools
is installed in the local environment, it should be ignored, including all
of its dependencies (e.g. click). When pip-tools is not installed
locally, clic... | def get_dists_to_ignore(installed):
"""
Returns a collection of package names to ignore when performing pip-sync,
based on the currently installed environment. For example, when pip-tools
is installed in the local environment, it should be ignored, including all
of its dependencies (e.g. click). W... |
Calculate which packages should be installed or uninstalled, given a set
of compiled requirements and a list of currently installed modules. | def diff(compiled_requirements, installed_dists):
"""
Calculate which packages should be installed or uninstalled, given a set
of compiled requirements and a list of currently installed modules.
"""
requirements_lut = {r.link or key_from_req(r.req): r for r in compiled_requirements}
satisfied =... |
Install and uninstalls the given sets of modules. | def sync(to_install, to_uninstall, verbose=False, dry_run=False, install_flags=None):
"""
Install and uninstalls the given sets of modules.
"""
if not to_uninstall and not to_install:
click.echo("Everything up-to-date")
pip_flags = []
if not verbose:
pip_flags += ['-q']
if ... |
Return a new spontaneous environment. A spontaneous environment is an
unnamed and unaccessible (in theory) environment that is used for
templates generated from a string and not from the file system. | def get_spontaneous_environment(*args):
"""Return a new spontaneous environment. A spontaneous environment is an
unnamed and unaccessible (in theory) environment that is used for
templates generated from a string and not from the file system.
"""
try:
env = _spontaneous_environments.get(arg... |
Perform a sanity check on the environment. | def _environment_sanity_check(environment):
"""Perform a sanity check on the environment."""
assert issubclass(environment.undefined, Undefined), 'undefined must ' \
'be a subclass of undefined because filters depend on it.'
assert environment.block_start_string != \
environment.variable_sta... |
Create a new overlay environment that shares all the data with the
current environment except for cache and the overridden attributes.
Extensions cannot be removed for an overlayed environment. An overlayed
environment automatically gets all the extensions of the environment it
is linke... | def overlay(self, block_start_string=missing, block_end_string=missing,
variable_start_string=missing, variable_end_string=missing,
comment_start_string=missing, comment_end_string=missing,
line_statement_prefix=missing, line_comment_prefix=missing,
trim_b... |
Iterates over the extensions by priority. | def iter_extensions(self):
"""Iterates over the extensions by priority."""
return iter(sorted(self.extensions.values(),
key=lambda x: x.priority)) |
Get an item or attribute of an object but prefer the attribute.
Unlike :meth:`getitem` the attribute *must* be a bytestring. | def getattr(self, obj, attribute):
"""Get an item or attribute of an object but prefer the attribute.
Unlike :meth:`getitem` the attribute *must* be a bytestring.
"""
try:
return getattr(obj, attribute)
except AttributeError:
pass
try:
... |
Invokes a filter on a value the same way the compiler does it.
Note that on Python 3 this might return a coroutine in case the
filter is running from an environment in async mode and the filter
supports async execution. It's your responsibility to await this
if needed.
.. vers... | def call_filter(self, name, value, args=None, kwargs=None,
context=None, eval_ctx=None):
"""Invokes a filter on a value the same way the compiler does it.
Note that on Python 3 this might return a coroutine in case the
filter is running from an environment in async mode and ... |
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