The Product() class should not evaluate by default
completed by: Natalia Nawara
mentors: Matthew Rocklin, Vladimir Perić, Stefan Krastanov, Aaron Meurer
Please see http://code.google.com/p/sympy/issues/detail?id=2639 for full information on this task.
Please read https://github.com/sympy/sympy/wiki/gci-2011-landing before completing any tasks for SymPy.
Additional Note(s): See comments 6 and 7 in the bug report.