def assert_fingerprint(cert, fingerprint):

    # Maps the length of a digest to a possible hash function producing
    # this digest.
    hashfunc_map = {
        16: md5,
        20: sha1
    }

    fingerprint = fingerprint.replace(':', '').lower()

    digest_length, rest = divmod(len(fingerprint), 2)

    if rest or digest_length not in hashfunc_map:
        raise SSLError('Fingerprint is of invalid length.')

    # We need encode() here for py32; works on py2 and p33.
    fingerprint_bytes = unhexlify(fingerprint.encode())

    hashfunc = hashfunc_map[digest_length]

    cert_digest = hashfunc(cert).digest()

    if not cert_digest == fingerprint_bytes:
        raise SSLError('Fingerprints did not match. Expected "{0}", got "{1}".'
                       .format(hexlify(fingerprint_bytes),
                               hexlify(cert_digest)))
Checks if given fingerprint matches the supplied certificate.
dataset/ETHPy150Open Bolton-and-Menk-GIS/restapi/restapi/requests/packages/urllib3/util.py/assert_fingerprint