…assert_ method is deprecated in Python 2.7
…EP8. Added a few missing license statements too.
will pick them up.
… bugs in the tests 1. Added from __future__ import generators statements to deal with yields 2. Removed usage of enumerate where not redefined 3. Updated Bio/Wise/__init__.py since it imported a bogus tempfile module on Python2.2 4. Updated test_Registry so it uses "".find instead of 2.3 'in' string comparison. 5. Modified test_Wise and test_psw which both import requires_wise to remove the previous import from sys.modules -- otherwise 2.2 will think it has imported it successfully. 2.3 is smarter than that. 6. Updated test_rebase so it works with the remove duplicate modules.