I have a subclass of int where I want all the standard arithmetic
operators to return my subclass, but with no other differences:
class MyInt(int):
def __add__(self, other):
return self.__class__(super(MyInt, self).__add__(other))
# and so on for __mul__, __sub__, etc.
My quick-and-dirty count of the __magic__ methods that need to be over-
ridden comes to about 30. That's a fair chunk of unexciting boilerplate.
Is there a trick or Pythonic idiom to make arithmetic operations on a
class return the same type, without having to manually specify each
method? I'm using Python 2.5, so anything related to ABCs are not an
option.
Does anyone have any suggestions?
--
Steven
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