- attached util.topo.diff
- removed redundant variable in topological.py
util.ThreadLocal - would be faster if the key in the _tdict is tuple(id,key) and not some formatted string off these? or the key is nonhashable
46535b25a642b596c1f43217fe00f6205bcc0ecb speeds that up for 2.3, 2.4+ get threading.local