On Thu, Apr 13, 2017 at 5:29 AM, Steven D'Aprano <st...@pearwood.info> wrote:
>
> my_number.__add__(another_number)
>
> The short answer is:
>
> NO! In general, you shouldn't do it.
For example:
class C:
def __add__(self, other):
return NotImplemented
class D:
def __radd__(self, other):
return 42
>>> C().__add__(D())
NotImplemented
>>> C() + D()
42
The functions in the operator module implement abstract behavior (e.g.
PyNumber_Add in CPython):
>>> operator.__add__(C(), D())
42
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