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python3.6
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wheel.py
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'''Wheels support.''' from distutils.util import get_platform import email import itertools import os import posixpath import re import zipfile from pkg_resources import Distribution, PathMetadata, parse_version from setuptools.extern.packaging.utils import canonicalize_name from setuptools.extern.six import PY3 from setuptools import Distribution as SetuptoolsDistribution from setuptools import pep425tags from setuptools.command.egg_info import write_requirements 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 = '''\ try: __import__('pkg_resources').declare_namespace(__name__) except ImportError: __path__ = __import__('pkgutil').extend_path(__path__, __name__) ''' 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) class Wheel(object): 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 is compatible with the current platform?''' supported_tags = pep425tags.get_supported() return next((True for t in self.tags() if t in supported_tags), False) def egg_name(self): return Distribution( project_name=self.project_name, version=self.version, platform=(None if self.platform == 'any' else get_platform()), ).egg_name() + '.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: dist_basename = '%s-%s' % (self.project_name, self.version) dist_info = self.get_dist_info(zf) dist_data = '%s.data' % dist_basename def get_metadata(name): with zf.open(posixpath.join(dist_info, name)) as fp: value = fp.read().decode('utf-8') if PY3 else fp.read() return email.parser.Parser().parsestr(value) wheel_metadata = get_metadata('WHEEL') dist_metadata = get_metadata('METADATA') # Check wheel format version is supported. wheel_version = parse_version(wheel_metadata.get('Wheel-Version')) if not parse_version('1.0') <= wheel_version < parse_version('2.0dev0'): raise ValueError('unsupported wheel format version: %s' % wheel_version) # Extract to target directory. os.mkdir(destination_eggdir) zf.extractall(destination_eggdir) # Convert metadata. dist_info = os.path.join(destination_eggdir, dist_info) dist = Distribution.from_location( destination_eggdir, dist_info, metadata=PathMetadata(destination_eggdir, dist_info) ) # Note: we need to evaluate and strip markers now, # as we can't easily 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(sorted(map(raw_req, dist.requires()))) extras_require = { extra: list(sorted( req for req in map(raw_req, dist.requires((extra,))) if req not in install_requires )) for extra in dist.extras } egg_info = os.path.join(destination_eggdir, 'EGG-INFO') os.rename(dist_info, egg_info) os.rename(os.path.join(egg_info, 'METADATA'), os.path.join(egg_info, 'PKG-INFO')) setup_dist = SetuptoolsDistribution(attrs=dict( install_requires=install_requires, extras_require=extras_require, )) write_requirements(setup_dist.get_command_obj('egg_info'), None, os.path.join(egg_info, 'requires.txt')) # 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) # Fix namespace packages. 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 os.path.exists(mod_dir) and not os.path.exists(mod_init): with open(mod_init, 'w') as fp: fp.write(NAMESPACE_PACKAGE_INIT)
/home/../lib/python3.6/site-packages/setuptools/_vendor/../wheel.py