[Python-Dev] Inplace multiply

My "masked array" class MA has a problem that I don't know how to solve. The inplace multiply function def __imul__ (self, other) is not getting called while my other input operations do work. The scenario is x = MA.array(...) x *= c If c is an int, this works correctly, calling MA.__imul__. Otherwise, I get a message from the Python runtime saying it can't multiply a sequence by a non-int. But change MA to Numeric, it works. Numeric is an extension type and MA is a (new style) class. MA defines __len__ as well as all the math operators.