def unzip_unicode(output, version):
    """Unzip the Unicode files."""

    unzipper = zipfile.ZipFile(os.path.join(output, 'unicodedata', '%s.zip' % version))
    target = os.path.join(output, 'unicodedata', version)

    print('Unzipping %s.zip...' % version)

    os.makedirs(target)

    for f in unzipper.namelist():
        # Do I need backslash on windows? Or is it forward as well?
        unzipper.extract(f, target)