Pyflakes (or any other source code analyze programs) has not been used during the development of anaconda. Attached is a patch which fixes 3 bugs found by it. To be able to use it properly all from X import * imports needs to be elimiated.
Created attachment 126016 [details] Fix 3 undefined variables
Fixed in CVS. We use pychecker at various intervals, but some of the circular ity of imports that we end up having confuse it and similar tools. I'll have to take a look at pyflakes.