Achim Domma wrote: > I want to use Python to script some formulas in my application. The user > should be able to write something like > > A = B * C > > where A,B,C are instances of some wrapper classes. Overloading * is no > problem but I cannot overload the assignment of A. I understand that > this is due to the nature of Python, but is there a trick to work around > this?
>>> class D(dict): ... def __setitem__(self, key, value): ... print key, "<--", value ... dict.__setitem__(self, key, value) ... >>> namespace = D(B=42, C=24) >>> exec "A = B * C" in namespace A <-- 1008 Peter -- http://mail.python.org/mailman/listinfo/python-list
