locate_archive.py 文件源码

def lookup_candidates(pkg, version):
    finder = PackageFinder(
            find_links=[],
            format_control=FormatControl(set([":all:"]), set()),
            index_urls=[_DEFAULT_INDEX],
            session=PipSession())
    for candidate in finder.find_all_candidates(pkg):
        if str(candidate.version) == version:
            return candidate.location
    return None