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?? __init__.py(9 KB)
?? __pycache__
?? _core_metadata.py(8.71 KB)
?? _distutils
?? _entry_points.py(2.18 KB)
?? _imp.py(2.38 KB)
?? _importlib.py(1.43 KB)
?? _itertools.py(675 B)
?? _normalization.py(4.12 KB)
?? _path.py(1.03 KB)
?? _reqs.py(1.09 KB)
?? _vendor
?? archive_util.py(7.16 KB)
?? build_meta.py(18.23 KB)
?? command
?? config
?? dep_util.py(659 B)
?? depends.py(5.45 KB)
?? discovery.py(20.65 KB)
?? dist.py(36.33 KB)
?? errors.py(2.61 KB)
?? extension.py(5.46 KB)
?? extern
?? glob.py(4.75 KB)
?? installer.py(4.87 KB)
?? launch.py(812 B)
?? logging.py(1.21 KB)
?? modified.py(190 B)
?? monkey.py(4.67 KB)
?? msvc.py(46.31 KB)
?? namespaces.py(3 KB)
?? package_index.py(37.45 KB)
?? py312compat.py(330 B)
?? sandbox.py(14.01 KB)
?? script (dev).tmpl(218 B)
?? script.tmpl(138 B)
?? unicode_utils.py(941 B)
?? version.py(161 B)
?? warnings.py(3.61 KB)
?? wheel.py(8.43 KB)
?? windows_support.py(720 B)

Editing: wheel.py

"""Wheels support."""

import email
import itertools
import functools
import os
import posixpath
import re
import zipfile
import contextlib

from distutils.util import get_platform

import setuptools
from setuptools.extern.packaging.version import Version as parse_version
from setuptools.extern.packaging.tags import sys_tags
from setuptools.extern.packaging.utils import canonicalize_name
from setuptools.command.egg_info import write_requirements, _egg_basename
from setuptools.archive_util import _unpack_zipfile_obj

WHEEL_NAME = re.compile(
    r"""^(?P<project_name>.+?)-(?P<version>\d.*?)
    ((-(?P<build>\d.*?))?-(?P<py_version>.+?)-(?P<abi>.+?)-(?P<platform>.+?)
    )\.whl$""",
    re.VERBOSE,
).match

NAMESPACE_PACKAGE_INIT = "__import__('pkg_resources').declare_namespace(__name__)\n"

@functools.lru_cache(maxsize=None)
def _get_supported_tags():
    # We calculate the supported tags only once, otherwise calling
    # this method on thousands of wheels takes seconds instead of
    # milliseconds.
    return {(t.interpreter, t.abi, t.platform) for t in sys_tags()}

def unpack(src_dir, dst_dir):
    '''Move everything under `src_dir` to `dst_dir`, and delete the former.'''
    for dirpath, dirnames, filenames in os.walk(src_dir):
        subdir = os.path.relpath(dirpath, src_dir)
        for f in filenames:
            src = os.path.join(dirpath, f)
            dst = os.path.join(dst_dir, subdir, f)
            os.renames(src, dst)
        for n, d in reversed(list(enumerate(dirnames))):
            src = os.path.join(dirpath, d)
            dst = os.path.join(dst_dir, subdir, d)
            if not os.path.exists(dst):
                # Directory does not exist in destination,
                # rename it and prune it from os.walk list.
                os.renames(src, dst)
                del dirnames[n]
    # Cleanup.
    for dirpath, dirnames, filenames in os.walk(src_dir, topdown=True):
        assert not filenames
        os.rmdir(dirpath)

@contextlib.contextmanager
def disable_info_traces():
    """
    Temporarily disable info traces.
    """
    from distutils import log

saved = log.set_threshold(log.WARN)
    try:
        yield
    finally:
        log.set_threshold(saved)

class Wheel:
    def __init__(self, filename):
        match = WHEEL_NAME(os.path.basename(filename))
        if match is None:
            raise ValueError('invalid wheel name: %r' % filename)
        self.filename = filename
        for k, v in match.groupdict().items():
            setattr(self, k, v)

def tags(self):
        '''List tags (py_version, abi, platform) supported by this wheel.'''
        return itertools.product(
            self.py_version.split('.'),
            self.abi.split('.'),
            self.platform.split('.'),
        )

def is_compatible(self):
        '''Is the wheel compatible with the current platform?'''
        return next((True for t in self.tags() if t in _get_supported_tags()), False)

def egg_name(self):
        return (
            _egg_basename(
                self.project_name,
                self.version,
                platform=(None if self.platform == 'any' else get_platform()),
            )
            + ".egg"
        )

def get_dist_info(self, zf):
        # find the correct name of the .dist-info dir in the wheel file
        for member in zf.namelist():
            dirname = posixpath.dirname(member)
            if dirname.endswith('.dist-info') and canonicalize_name(dirname).startswith(
                canonicalize_name(self.project_name)
            ):
                return dirname
        raise ValueError("unsupported wheel format. .dist-info not found")

def install_as_egg(self, destination_eggdir):
        '''Install wheel as an egg directory.'''
        with zipfile.ZipFile(self.filename) as zf:
            self._install_as_egg(destination_eggdir, zf)

def _install_as_egg(self, destination_eggdir, zf):
        dist_basename = '%s-%s' % (self.project_name, self.version)
        dist_info = self.get_dist_info(zf)
        dist_data = '%s.data' % dist_basename
        egg_info = os.path.join(destination_eggdir, 'EGG-INFO')

self._convert_metadata(zf, destination_eggdir, dist_info, egg_info)
        self._move_data_entries(destination_eggdir, dist_data)
        self._fix_namespace_packages(egg_info, destination_eggdir)

@staticmethod
    def _convert_metadata(zf, destination_eggdir, dist_info, egg_info):
        import pkg_resources

def get_metadata(name):
            with zf.open(posixpath.join(dist_info, name)) as fp:
                value = fp.read().decode('utf-8')
                return email.parser.Parser().parsestr(value)

wheel_metadata = get_metadata('WHEEL')
        # Check wheel format version is supported.
        wheel_version = parse_version(wheel_metadata.get('Wheel-Version'))
        wheel_v1 = parse_version('1.0') <= wheel_version < parse_version('2.0dev0')
        if not wheel_v1:
            raise ValueError('unsupported wheel format version: %s' % wheel_version)
        # Extract to target directory.
        _unpack_zipfile_obj(zf, destination_eggdir)
        # Convert metadata.
        dist_info = os.path.join(destination_eggdir, dist_info)
        dist = pkg_resources.Distribution.from_location(
            destination_eggdir,
            dist_info,
            metadata=pkg_resources.PathMetadata(destination_eggdir, dist_info),
        )

# Note: Evaluate and strip markers now,
        # as it's difficult to convert back from the syntax:
        # foobar; "linux" in sys_platform and extra == 'test'
        def raw_req(req):
            req.marker = None
            return str(req)

install_requires = list(map(raw_req, dist.requires()))
        extras_require = {
            extra: [
                req
                for req in map(raw_req, dist.requires((extra,)))
                if req not in install_requires
            ]
            for extra in dist.extras
        }
        os.rename(dist_info, egg_info)
        os.rename(
            os.path.join(egg_info, 'METADATA'),
            os.path.join(egg_info, 'PKG-INFO'),
        )
        setup_dist = setuptools.Distribution(
            attrs=dict(
                install_requires=install_requires,
                extras_require=extras_require,
            ),
        )
        with disable_info_traces():
            write_requirements(
                setup_dist.get_command_obj('egg_info'),
                None,
                os.path.join(egg_info, 'requires.txt'),
            )

@staticmethod
    def _move_data_entries(destination_eggdir, dist_data):
        """Move data entries to their correct location."""
        dist_data = os.path.join(destination_eggdir, dist_data)
        dist_data_scripts = os.path.join(dist_data, 'scripts')
        if os.path.exists(dist_data_scripts):
            egg_info_scripts = os.path.join(destination_eggdir, 'EGG-INFO', 'scripts')
            os.mkdir(egg_info_scripts)
            for entry in os.listdir(dist_data_scripts):
                # Remove bytecode, as it's not properly handled
                # during easy_install scripts install phase.
                if entry.endswith('.pyc'):
                    os.unlink(os.path.join(dist_data_scripts, entry))
                else:
                    os.rename(
                        os.path.join(dist_data_scripts, entry),
                        os.path.join(egg_info_scripts, entry),
                    )
            os.rmdir(dist_data_scripts)
        for subdir in filter(
            os.path.exists,
            (
                os.path.join(dist_data, d)
                for d in ('data', 'headers', 'purelib', 'platlib')
            ),
        ):
            unpack(subdir, destination_eggdir)
        if os.path.exists(dist_data):
            os.rmdir(dist_data)

@staticmethod
    def _fix_namespace_packages(egg_info, destination_eggdir):
        namespace_packages = os.path.join(egg_info, 'namespace_packages.txt')
        if os.path.exists(namespace_packages):
            with open(namespace_packages) as fp:
                namespace_packages = fp.read().split()
            for mod in namespace_packages:
                mod_dir = os.path.join(destination_eggdir, *mod.split('.'))
                mod_init = os.path.join(mod_dir, '__init__.py')
                if not os.path.exists(mod_dir):
                    os.mkdir(mod_dir)
                if not os.path.exists(mod_init):
                    with open(mod_init, 'w') as fp:
                        fp.write(NAMESPACE_PACKAGE_INIT)

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