# Copyright (C) 2019-2020 The Software Heritage developers # See the AUTHORS file at the top-level directory of this distribution # License: GNU General Public License version 3, or any later version # See top-level LICENSE file for more information import hashlib TOKEN_BEGIN = -(2 ** 63) """Minimum value returned by the CQL function token()""" TOKEN_END = 2 ** 63 - 1 """Maximum value returned by the CQL function token()""" def hash_url(url: str) -> bytes: return hashlib.sha1(url.encode("ascii")).digest()