comparison mercurial/util.py @ 12051:ff5cec76b1c5 stable 1.6.3

util: avoid using hashlib on Python < 2.5 (issue2278)

The following patch allows the use of python2.4 with a standalone
hashlib rather than assuming that python2.5 is in use when hashlib is
imported successfully.

12050:c5fd25c1bc4a

def _fastsha1(s):
    # This function will import sha1 from hashlib or sha (whichever is
    # available) and overwrite itself with it on the first call.
    # Subsequent calls will go directly to the imported function.
    try:
        from hashlib import sha1 as _sha1
    except ImportError:
        from sha import sha as _sha1
    global _fastsha1, sha1
    _fastsha1 = sha1 = _sha1
    return _sha1(s)

12051:ff5cec76b1c5

def _fastsha1(s):
    # This function will import sha1 from hashlib or sha (whichever is
    # available) and overwrite itself with it on the first call.
    # Subsequent calls will go directly to the imported function.
    if sys.version_info >= (2, 5):
        from hashlib import sha1 as _sha1
    else:
        from sha import sha as _sha1
    global _fastsha1, sha1
    _fastsha1 = sha1 = _sha1
    return _sha1(s)