make setup.py similar to py3k's when reporting on _hashlib as missing or not.
........
r77368 | senthil.kumaran | 2010-01-08 12:41:40 -0600 (Fri, 08 Jan 2010) | 1 line
Fixing - Issue7026 - RuntimeError: dictionary changed size during iteration. Patch by flox
........
r77369 | senthil.kumaran | 2010-01-08 13:04:16 -0600 (Fri, 08 Jan 2010) | 4 lines
Reverting the Revision: 77368. I committed Flox's big patch for tests by
mistake. ( It may come in for sure tough)
........