Log Message:
-----------
Give AbortTransaction the ability to return an object.
Also, rename NO_DATA to NO_DATA_WARNING as it is a warning.
Make prime.Error inherit from StandardError and prime.Exception.
Implement Warning.__str__.
Modified Files:
--------------
ex/src:
code.py (r1.6 -> r1.7)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/ex/src/code.py.diff?r1=1.6&r2=1.7)
prime.py (r1.9 -> r1.10)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/ex/src/prime.py.diff?r1=1.9&r2=1.10)
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TIP 6: explain analyze is your friend
