sympy/sympy — pull request #831 by Anxuiz (2011-12-08 06:31:36+00:00)
Title: [GCI 2011] Refactor and fix pyflakes errors in modules a-e

These commits fix pyflakes errors in assumptions, benchmarks, combinatorics, concrete, and core as well as refactor a few of the tests.

Tested on Windows using Python 2.7.2 and 3.2.1.

GCI Task: http://www.google-melange.com/gci/task/view/google/gci2011/7134381