Modifying builtin type behaviour

Jean-S?bastien Bolduc jseb at
Thu Feb 12 19:15:22 CET 2004

I'm afraid this is a silly question, to which I know the answer
already. But let me ask anyway...

In Python, is there a way to modify a builtin type's methods? for
instance, modifying int.__add__ to behave as multiplication, I would
obtain 2+5 == 10. I emphasize that I don't want to modify the Python
source, but change the types behaviour _from within Python_.

Help would be appreciated!

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