[issue9621] Graphviz output for 2to3 fixer patterns

[Matt Bond]

Matt Bond <gmattbond at gmail.com> added the comment:

Sorry for the delay in responding, and for getting this patch cleaned up and submitted.

While I was going through my code to submit it, I found a couple of additional issues with it. Then I ended up becoming very busy with my grad courses. As a result, I haven't had a chance to do anything with it. Currently, my plan is to rework it over the winter break to fix the issues, make it work correctly with python 3, and remove the dependence on the external graphviz package (which should resolve the import issue as well).

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<http://bugs.python.org/issue9621>
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