def is_chinese(uchar):
    """
    https://github.com/fxsjy/jieba/blob/master/jieba/__init__.py#L48
    re.compile("([\u4E00-\u9FD5]+)", re.U)
    """
    return u'\u4e00' <= uchar <= u'\u9fa5'



def has_chinese(text):
    """ contains Chinese characters """
    return any(is_chinese(ch) for ch in text)