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__pycache__	dir	drwxr-xr-x	2024-11-03 22:12	R D
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markers.py	6.135 KB	-rw-r--r--	2024-10-17 13:12	R E G D
metadata.py	37.923 KB	-rw-r--r--	2024-10-17 13:12	R E G D
resources.py	10.514 KB	-rw-r--r--	2024-10-17 13:12	R E G D
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wheel.py	38.198 KB	-rw-r--r--	2024-10-17 13:12	R E G D
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# -*- coding: utf-8 -*- # # Copyright (C) 2012 The Python Software Foundation. # See LICENSE.txt and CONTRIBUTORS.txt. # """Implementation of the Metadata for Python packages PEPs. Supports all metadata formats (1.0, 1.1, 1.2, and 2.0 experimental). """ from __future__ import unicode_literals import codecs from email import message_from_file import json import logging import re from . import DistlibException, __version__ from .compat import StringIO, string_types, text_type from .markers import interpret from .util import extract_by_key, get_extras from .version import get_scheme, PEP440_VERSION_RE logger = logging.getLogger(__name__) class MetadataMissingError(DistlibException): """A required metadata is missing""" class MetadataConflictError(DistlibException): """Attempt to read or write metadata fields that are conflictual.""" class MetadataUnrecognizedVersionError(DistlibException): """Unknown metadata version number.""" class MetadataInvalidError(DistlibException): """A metadata value is invalid""" # public API of this module __all__ = ['Metadata', 'PKG_INFO_ENCODING', 'PKG_INFO_PREFERRED_VERSION'] # Encoding used for the PKG-INFO files PKG_INFO_ENCODING = 'utf-8' # preferred version. Hopefully will be changed # to 1.2 once PEP 345 is supported everywhere PKG_INFO_PREFERRED_VERSION = '1.1' _LINE_PREFIX_1_2 = re.compile('\n \|') _LINE_PREFIX_PRE_1_2 = re.compile('\n ') _241_FIELDS = ('Metadata-Version', 'Name', 'Version', 'Platform', 'Summary', 'Description', 'Keywords', 'Home-page', 'Author', 'Author-email', 'License') _314_FIELDS = ('Metadata-Version', 'Name', 'Version', 'Platform', 'Supported-Platform', 'Summary', 'Description', 'Keywords', 'Home-page', 'Author', 'Author-email', 'License', 'Classifier', 'Download-URL', 'Obsoletes', 'Provides', 'Requires') _314_MARKERS = ('Obsoletes', 'Provides', 'Requires', 'Classifier', 'Download-URL') _345_FIELDS = ('Metadata-Version', 'Name', 'Version', 'Platform', 'Supported-Platform', 'Summary', 'Description', 'Keywords', 'Home-page', 'Author', 'Author-email', 'Maintainer', 'Maintainer-email', 'License', 'Classifier', 'Download-URL', 'Obsoletes-Dist', 'Project-URL', 'Provides-Dist', 'Requires-Dist', 'Requires-Python', 'Requires-External') _345_MARKERS = ('Provides-Dist', 'Requires-Dist', 'Requires-Python', 'Obsoletes-Dist', 'Requires-External', 'Maintainer', 'Maintainer-email', 'Project-URL') _426_FIELDS = ('Metadata-Version', 'Name', 'Version', 'Platform', 'Supported-Platform', 'Summary', 'Description', 'Keywords', 'Home-page', 'Author', 'Author-email', 'Maintainer', 'Maintainer-email', 'License', 'Classifier', 'Download-URL', 'Obsoletes-Dist', 'Project-URL', 'Provides-Dist', 'Requires-Dist', 'Requires-Python', 'Requires-External', 'Private-Version', 'Obsoleted-By', 'Setup-Requires-Dist', 'Extension', 'Provides-Extra') _426_MARKERS = ('Private-Version', 'Provides-Extra', 'Obsoleted-By', 'Setup-Requires-Dist', 'Extension') _ALL_FIELDS = set() _ALL_FIELDS.update(_241_FIELDS) _ALL_FIELDS.update(_314_FIELDS) _ALL_FIELDS.update(_345_FIELDS) _ALL_FIELDS.update(_426_FIELDS) EXTRA_RE = re.compile(r'''extra\s*==\s*("([^"]+)"|'([^']+)')''') def _version2fieldlist(version): if version == '1.0': return _241_FIELDS elif version == '1.1': return _314_FIELDS elif version == '1.2': return _345_FIELDS elif version == '2.0': return _426_FIELDS raise MetadataUnrecognizedVersionError(version) 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 ([], 'UNKNOWN', None): continue keys.append(key) possible_versions = ['1.0', '1.1', '1.2', '2.0'] # first let's try to see if a field is not part of one of the version for key in keys: if key not in _241_FIELDS and '1.0' in possible_versions: possible_versions.remove('1.0') if key not in _314_FIELDS and '1.1' in possible_versions: possible_versions.remove('1.1') if key not in _345_FIELDS and '1.2' in possible_versions: possible_versions.remove('1.2') if key not in _426_FIELDS and '2.0' in possible_versions: possible_versions.remove('2.0') # possible_version contains qualified versions if len(possible_versions) == 1: return possible_versions[0] # found ! elif len(possible_versions) == 0: raise MetadataConflictError('Unknown metadata set') # let's see if one unique marker is found is_1_1 = '1.1' in possible_versions and _has_marker(keys, _314_MARKERS) is_1_2 = '1.2' in possible_versions and _has_marker(keys, _345_MARKERS) is_2_0 = '2.0' in possible_versions and _has_marker(keys, _426_MARKERS) if int(is_1_1) + int(is_1_2) + int(is_2_0) > 1: raise MetadataConflictError('You used incompatible 1.1/1.2/2.0 fields') # we have the choice, 1.0, or 1.2, or 2.0 # - 1.0 has a broken Summary field but works with all tools # - 1.1 is to avoid # - 1.2 fixes Summary but has little adoption # - 2.0 adds more features and is very new if not is_1_1 and not is_1_2 and not is_2_0: # we couldn't find any specific marker if PKG_INFO_PREFERRED_VERSION in possible_versions: return PKG_INFO_PREFERRED_VERSION if is_1_1: return '1.1' if is_1_2: return '1.2' return '2.0' _ATTR2FIELD = { 'metadata_version': 'Metadata-Version', 'name': 'Name', 'version': 'Version', 'platform': 'Platform', 'supported_platform': 'Supported-Platform', 'summary': 'Summary', 'description': 'Description', 'keywords': 'Keywords', 'home_page': 'Home-page', 'author': 'Author', 'author_email': 'Author-email', 'maintainer': 'Maintainer', 'maintainer_email': 'Maintainer-email', 'license': 'License', 'classifier': 'Classifier', 'download_url': 'Download-URL', 'obsoletes_dist': 'Obsoletes-Dist', 'provides_dist': 'Provides-Dist', 'requires_dist': 'Requires-Dist', 'setup_requires_dist': 'Setup-Requires-Dist', 'requires_python': 'Requires-Python', 'requires_external': 'Requires-External', 'requires': 'Requires', 'provides': 'Provides', 'obsoletes': 'Obsoletes', 'project_url': 'Project-URL', 'private_version': 'Private-Version', 'obsoleted_by': 'Obsoleted-By', 'extension': 'Extension', 'provides_extra': 'Provides-Extra', } _PREDICATE_FIELDS = ('Requires-Dist', 'Obsoletes-Dist', 'Provides-Dist') _VERSIONS_FIELDS = ('Requires-Python',) _VERSION_FIELDS = ('Version',) _LISTFIELDS = ('Platform', 'Classifier', 'Obsoletes', 'Requires', 'Provides', 'Obsoletes-Dist', 'Provides-Dist', 'Requires-Dist', 'Requires-External', 'Project-URL', 'Supported-Platform', 'Setup-Requires-Dist', 'Provides-Extra', 'Extension') _LISTTUPLEFIELDS = ('Project-URL',) _ELEMENTSFIELD = ('Keywords',) _UNICODEFIELDS = ('Author', 'Maintainer', 'Summary', 'Description') _MISSING = object() _FILESAFE = re.compile('[^A-Za-z0-9.]+') 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 '-'. Additionally any # spaces in the version string become '.' name = _FILESAFE.sub('-', name) version = _FILESAFE.sub('-', version.replace(' ', '.')) return '%s-%s' % (name, version) class LegacyMetadata(object): """The legacy metadata of a release. Supports versions 1.0, 1.1 and 1.2 (auto-detected). You can instantiate the class with one of these arguments (or none): - *path*, the path to a metadata file - *fileobj* give a file-like object with metadata as content - *mapping* is a dict-like object - *scheme* is a version scheme name """ # TODO document the mapping API and UNKNOWN default key def __init__(self, path=None, fileobj=None, mapping=None, scheme='default'): if [path, fileobj, mapping].count(None) < 2: raise TypeError('path, fileobj and mapping are exclusive') self._fields = {} self.requires_files = [] self._dependencies = None self.scheme = scheme if path is not None: self.read(path) elif fileobj is not None: self.read_file(fileobj) elif mapping is not None: self.update(mapping)