New submission from Michael Gilbert <michael.s.gilb...@gmail.com>:
in order to make overrides simpler, and more obvious to average developers, it
would be very useful to automatically call the forward operations (e.g.
__mul__) when the reverse operations (e.g. __rmul__) are NotImplemented.
i spent quite a bit of time trying to discover why x*3 worked (where x is a
class that i created with a __mul__ method); whereas 3*x wouldn't. this feature
would really help since in most applications the same behavior is expected from
forward and reverse operations.
for now, i am content with doing this manually, but it would be nice if it were
automated. all of my reverse operations just do:
def __rmul__( self , other ):
return self.__mul__( other )
where i manually check the type of other in the forward operation, and then
handle it appropriately.
thanks for considering this.
best wishes,
mike
----------
components: Interpreter Core
messages: 111833
nosy: Michael.Gilbert
priority: normal
severity: normal
status: open
title: automatically try forward operations when reverse operations are
NotImplemented
type: feature request
versions: Python 2.5, Python 2.6, Python 2.7, Python 3.1
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue9401>
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