Загрузить файлы в «venv/Lib/site-packages/pip/_internal/utils»

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2026-07-02 19:10:29 +00:00
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"""Functions brought over from jaraco.text.
These functions are not supposed to be used within `pip._internal`. These are
helper functions brought over from `jaraco.text` to enable vendoring newer
copies of `pkg_resources` without having to vendor `jaraco.text` and its entire
dependency cone; something that our vendoring setup is not currently capable of
handling.
License reproduced from original source below:
Copyright Jason R. Coombs
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
deal in the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
IN THE SOFTWARE.
"""
import functools
import itertools
def _nonblank(str):
return str and not str.startswith("#")
@functools.singledispatch
def yield_lines(iterable):
r"""
Yield valid lines of a string or iterable.
>>> list(yield_lines(''))
[]
>>> list(yield_lines(['foo', 'bar']))
['foo', 'bar']
>>> list(yield_lines('foo\nbar'))
['foo', 'bar']
>>> list(yield_lines('\nfoo\n#bar\nbaz #comment'))
['foo', 'baz #comment']
>>> list(yield_lines(['foo\nbar', 'baz', 'bing\n\n\n']))
['foo', 'bar', 'baz', 'bing']
"""
return itertools.chain.from_iterable(map(yield_lines, iterable))
@yield_lines.register(str)
def _(text):
return filter(_nonblank, map(str.strip, text.splitlines()))
def drop_comment(line):
"""
Drop comments.
>>> drop_comment('foo # bar')
'foo'
A hash without a space may be in a URL.
>>> drop_comment('http://example.com/foo#bar')
'http://example.com/foo#bar'
"""
return line.partition(" #")[0]
def join_continuation(lines):
r"""
Join lines continued by a trailing backslash.
>>> list(join_continuation(['foo \\', 'bar', 'baz']))
['foobar', 'baz']
>>> list(join_continuation(['foo \\', 'bar', 'baz']))
['foobar', 'baz']
>>> list(join_continuation(['foo \\', 'bar \\', 'baz']))
['foobarbaz']
Not sure why, but...
The character preceding the backslash is also elided.
>>> list(join_continuation(['goo\\', 'dly']))
['godly']
A terrible idea, but...
If no line is available to continue, suppress the lines.
>>> list(join_continuation(['foo', 'bar\\', 'baz\\']))
['foo']
"""
lines = iter(lines)
for item in lines:
while item.endswith("\\"):
try:
item = item[:-2].strip() + next(lines)
except StopIteration:
return
yield item

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"""Customize logging
Defines custom logger class for the `logger.verbose(...)` method.
init_logging() must be called before any other modules that call logging.getLogger.
"""
import logging
from typing import Any, cast
# custom log level for `--verbose` output
# between DEBUG and INFO
VERBOSE = 15
class VerboseLogger(logging.Logger):
"""Custom Logger, defining a verbose log-level
VERBOSE is between INFO and DEBUG.
"""
def verbose(self, msg: str, *args: Any, **kwargs: Any) -> None:
return self.log(VERBOSE, msg, *args, **kwargs)
def getLogger(name: str) -> VerboseLogger:
"""logging.getLogger, but ensures our VerboseLogger class is returned"""
return cast(VerboseLogger, logging.getLogger(name))
def init_logging() -> None:
"""Register our VerboseLogger and VERBOSE log level.
Should be called before any calls to getLogger(),
i.e. in pip._internal.__init__
"""
logging.setLoggerClass(VerboseLogger)
logging.addLevelName(VERBOSE, "VERBOSE")

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"""
This code wraps the vendored appdirs module to so the return values are
compatible for the current pip code base.
The intention is to rewrite current usages gradually, keeping the tests pass,
and eventually drop this after all usages are changed.
"""
import os
import sys
from pip._vendor import platformdirs as _appdirs
def user_cache_dir(appname: str) -> str:
return _appdirs.user_cache_dir(appname, appauthor=False)
def _macos_user_config_dir(appname: str, roaming: bool = True) -> str:
# Use ~/Application Support/pip, if the directory exists.
path = _appdirs.user_data_dir(appname, appauthor=False, roaming=roaming)
if os.path.isdir(path):
return path
# Use a Linux-like ~/.config/pip, by default.
linux_like_path = "~/.config/"
if appname:
linux_like_path = os.path.join(linux_like_path, appname)
return os.path.expanduser(linux_like_path)
def user_config_dir(appname: str, roaming: bool = True) -> str:
if sys.platform == "darwin":
return _macos_user_config_dir(appname, roaming)
return _appdirs.user_config_dir(appname, appauthor=False, roaming=roaming)
# for the discussion regarding site_config_dir locations
# see <https://github.com/pypa/pip/issues/1733>
def site_config_dirs(appname: str) -> list[str]:
if sys.platform == "darwin":
dirval = _appdirs.site_data_dir(appname, appauthor=False, multipath=True)
return dirval.split(os.pathsep)
dirval = _appdirs.site_config_dir(appname, appauthor=False, multipath=True)
if sys.platform == "win32":
return [dirval]
# Unix-y system. Look in /etc as well.
return dirval.split(os.pathsep) + ["/etc"]

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"""Stuff that differs in different Python versions and platform
distributions."""
import importlib.resources
import logging
import os
import sys
from typing import IO
__all__ = ["get_path_uid", "stdlib_pkgs", "tomllib", "WINDOWS"]
logger = logging.getLogger(__name__)
def has_tls() -> bool:
try:
import _ssl # noqa: F401 # ignore unused
return True
except ImportError:
pass
from pip._vendor.urllib3.util import IS_PYOPENSSL
return IS_PYOPENSSL
def get_path_uid(path: str) -> int:
"""
Return path's uid.
Does not follow symlinks:
https://github.com/pypa/pip/pull/935#discussion_r5307003
Placed this function in compat due to differences on AIX and
Jython, that should eventually go away.
:raises OSError: When path is a symlink or can't be read.
"""
if hasattr(os, "O_NOFOLLOW"):
fd = os.open(path, os.O_RDONLY | os.O_NOFOLLOW)
file_uid = os.fstat(fd).st_uid
os.close(fd)
else: # AIX and Jython
# WARNING: time of check vulnerability, but best we can do w/o NOFOLLOW
if not os.path.islink(path):
# older versions of Jython don't have `os.fstat`
file_uid = os.stat(path).st_uid
else:
# raise OSError for parity with os.O_NOFOLLOW above
raise OSError(f"{path} is a symlink; Will not return uid for symlinks")
return file_uid
# The importlib.resources.open_text function was deprecated in 3.11 with suggested
# replacement we use below.
if sys.version_info < (3, 11):
open_text_resource = importlib.resources.open_text
else:
def open_text_resource(
package: str, resource: str, encoding: str = "utf-8", errors: str = "strict"
) -> IO[str]:
return (importlib.resources.files(package) / resource).open(
"r", encoding=encoding, errors=errors
)
if sys.version_info >= (3, 11):
import tomllib
else:
from pip._vendor import tomli as tomllib
# packages in the stdlib that may have installation metadata, but should not be
# considered 'installed'. this theoretically could be determined based on
# dist.location (py27:`sysconfig.get_paths()['stdlib']`,
# py26:sysconfig.get_config_vars('LIBDEST')), but fear platform variation may
# make this ineffective, so hard-coding
stdlib_pkgs = {"python", "wsgiref", "argparse"}
# windows detection, covers cpython and ironpython
WINDOWS = sys.platform.startswith("win") or (sys.platform == "cli" and os.name == "nt")