sympy/sympy — pull request #1283 by rlamy (2012-05-08 03:39:36+00:00)
Title: Code clean-up

This is a bunch of pyflakes-inspired clean-ups of imports, formatting, etc. It also includes a resolution of [issue 2371](http://code.google.com/p/sympy/issues/detail?id=2371).

The count of warnings from `setup.py audit` is down to 256, compared to 597 in master.