def _are_unicode(unicode_args=[]):
    if sys.version_info[0] == 2:
        return all((type(arg) not in unicode) for arg in unicode_args)

    # Assume Python 3
    return all((type(arg) == str) for arg in unicode_args)
dataset/ETHPy150Open ksze/sanitize/sanitize.py/_are_unicode/operator `==` -> `not in`