sympy/sympy — pull request #865 by smichr (2011-12-19 19:32:59+00:00)
Title: factor_terms handles more objects and _make_tuple (to sympify and Tuplize) was removed

Not all objects presently pass through factor_terms. This pull request make modifications so that more object pass successfully though. Also, _make_tuple was a hack until PR 399 was implemented; and it has been so that code was removed.