metadata.py 文件源码

def pkginfo_to_metadata(egg_info_path, pkginfo_path):
    """
    Convert .egg-info directory with PKG-INFO to the Metadata 1.3 aka
    old-draft Metadata 2.0 format.
    """
    pkg_info = read_pkg_info(pkginfo_path)
    pkg_info.replace_header('Metadata-Version', '2.0')
    requires_path = os.path.join(egg_info_path, 'requires.txt')
    if os.path.exists(requires_path):
        with open(requires_path) as requires_file:
            requires = requires_file.read()
        for extra, reqs in sorted(pkg_resources.split_sections(requires),
                                  key=lambda x: x[0] or ''):
            for item in generate_requirements({extra: reqs}):
                pkg_info[item[0]] = item[1]

    description = pkg_info['Description']
    if description:
        pkg_info.set_payload(dedent_description(pkg_info))
        del pkg_info['Description']

    return pkg_info