Comment #6 on issue 1198 by asmeurer: pickle does not work for Function http://code.google.com/p/sympy/issues/detail?id=1198
Actually, pickle has its own function called whichmodule which tries to find the module if __module__ is set to None. So if we wanted to use the above hack, it would be better to just set __module__ to None before creating the UndefinedFunction.
-- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to sympy-issues@googlegroups.com. To unsubscribe from this group, send email to sympy-issues+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy-issues?hl=en.
