How to use the entrypoints.Distribution.from_name_version function in entrypoints

def iter_files_distros(path=None, repeated_distro='first'):
    if path is None:
        path = sys.path

    # Distributions found earlier in path will shadow those with the same name
    # found later. If these distributions used different module names, it may
    # actually be possible to import both, but in most cases this shadowing
    # will be correct.
    distro_names_seen = set()

    for folder in path:
        if folder.rstrip('/\\').endswith('.egg'):
            # Gah, eggs
            egg_name = osp.basename(folder)
            distro = Distribution.from_name_version(egg_name.split(".egg")[0])

            if (repeated_distro == 'first') \
                    and (distro.name in distro_names_seen):
                continue
            distro_names_seen.add(distro.name)

            if osp.isdir(folder):
                ep_path = osp.join(folder, 'EGG-INFO', 'entry_points.txt')
                if osp.isfile(ep_path):
                    cp = CaseSensitiveConfigParser(delimiters=('=',))
                    cp.read([ep_path])
                    yield cp, distro

            elif zipfile.is_zipfile(folder):
                z = zipfile.ZipFile(folder)
                try:

with z.open(info) as f:
                    fu = io.TextIOWrapper(f)
                    cp.read_file(fu, source=osp.join(
                        folder, 'EGG-INFO', 'entry_points.txt'))
                yield cp, distro

        # zip imports, not egg
        elif zipfile.is_zipfile(folder):
            with zipfile.ZipFile(folder) as zf:
                for info in zf.infolist():
                    m = file_in_zip_pattern.match(info.filename)
                    if not m:
                        continue

                    distro_name_version = m.group('dist_version')
                    distro = Distribution.from_name_version(distro_name_version)

                    if (repeated_distro == 'first') \
                            and (distro.name in distro_names_seen):
                        continue
                    distro_names_seen.add(distro.name)

                    cp = CaseSensitiveConfigParser(delimiters=('=',))
                    with zf.open(info) as f:
                        fu = io.TextIOWrapper(f)
                        cp.read_file(fu, source=osp.join(folder, info.filename))
                    yield cp, distro

        # Regular file imports (not egg, not zip file)
        for path in itertools.chain(
            glob.iglob(osp.join(folder, '*.dist-info', 'entry_points.txt')),
            glob.iglob(osp.join(folder, '*.egg-info', 'entry_points.txt'))