sympy/sympy — pull request #642 by vperic (2011-10-09 11:18:57+00:00)
Title: Some misc py3k fixes

Just two simple commits. The first updates test_pickling to test protocol 3 too and cleans up some outdated comments related to Python 3 support; the second adds a section to the README file about using SymPy with Python 3. I'm open to suggestions for the second one, I didn't really know what to write exactly.