Comment #6 on issue 282 by ronan.l...@gmail.com: symbols becoming functions http://code.google.com/p/sympy/issues/detail?id=282
The reason for this behaviour is explained in issue 440. Your branch causes the following problem: In [1]: sympify('a(x)') --------------------------------------------------------------------------- AssertionError Traceback (most recent call last) <snip> AssertionError: Symbol a is not a function. -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You may adjust your issue notification preferences at: http://code.google.com/hosting/settings -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to sympy-iss...@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.