timestamp_from_uuid.py

import uuid
# based on http://stackoverflow.com/questions/3795554/extract-the-time-from-a-uuid-v1-in-python

def uuid_to_timestamp(uuid_hex_string):
    uid = uuid.UUID(hex=uuid_hex_string)
    return (u.time - 0x01b21dd213814000L)*100/1e9

def reorder_uuid(uuid_hex_string):
    parts = uuid_hex_string.split('-')
    return '-'.join((parts[2], parts[1], parts[0], parts[3], parts[4]))

def test_sequentialness(n=10000):
    old = reorder_uuid(str(uuid.uuid1()))
    for i in xrange(n):
        print old
        new = reorder_uuid(str(uuid.uuid1()))
        assert new > old
        old = new
    print "passed!"