sympy/sympy — pull request #822 by Anxuiz (2011-12-06 04:43:41+00:00)
Title: [GCI 2011] Refactor and fix pyflakes errors in sympy.solvers.

This commit fixes pyflakes errors in sympy.solvers (extraneous imports, variable shadowing, etc) and also refactors some code in test_solvers.py.

Tested with Python 2.7.1 and 3.2.1 on Windows.

GCI Task: http://google-melange.appspot.com/gci/task/view/google/gci2011/7141263