import unicodedata


def has_alphanum(s):
    """
        Return True if s has at least one alphanumeric character in any language.
        See https://en.wikipedia.org/wiki/Unicode_character_property#General_Category
    """
    for c in s:
        category = unicodedata.category(c)[0]
        if category == 'L' or category == 'N':
            return True
    return False