dist.py 文件源码

def __init__(self, attrs=None):
        have_package_data = hasattr(self, "package_data")
        if not have_package_data:
            self.package_data = {}
        _attrs_dict = attrs or {}
        if 'features' in _attrs_dict or 'require_features' in _attrs_dict:
            Feature.warn_deprecated()
        self.require_features = []
        self.features = {}
        self.dist_files = []
        self.src_root = attrs and attrs.pop("src_root", None)
        self.patch_missing_pkg_info(attrs)
        # Make sure we have any eggs needed to interpret 'attrs'
        if attrs is not None:
            self.dependency_links = attrs.pop('dependency_links', [])
            assert_string_list(self,'dependency_links',self.dependency_links)
        if attrs and 'setup_requires' in attrs:
            self.fetch_build_eggs(attrs['setup_requires'])
        for ep in pkg_resources.iter_entry_points('distutils.setup_keywords'):
            if not hasattr(self,ep.name):
                setattr(self,ep.name,None)
        _Distribution.__init__(self,attrs)
        if isinstance(self.metadata.version, numbers.Number):
            # Some people apparently take "version number" too literally :)
            self.metadata.version = str(self.metadata.version)

        if self.metadata.version is not None:
            try:
                ver = packaging.version.Version(self.metadata.version)
                normalized_version = str(ver)
                if self.metadata.version != normalized_version:
                    warnings.warn(
                        "Normalizing '%s' to '%s'" % (
                            self.metadata.version,
                            normalized_version,
                        )
                    )
                    self.metadata.version = normalized_version
            except (packaging.version.InvalidVersion, TypeError):
                warnings.warn(
                    "The version specified (%r) is an invalid version, this "
                    "may not work as expected with newer versions of "
                    "setuptools, pip, and PyPI. Please see PEP 440 for more "
                    "details." % self.metadata.version
                )