Operator Overloading

Peter Maas peter at somewhere.com
Fri Nov 26 09:45:10 CET 2004


Sebastien Boisgerault schrieb:
> Peter Maas <peter at somewhere.com> wrote in message news:<co48s1$r1f$1 at swifty.westend.com>...
> 
>>Sebastien Boisgerault schrieb:
[...]
>>but this is not what the Python Reference Manual says. Im not a
>>Numeric expert but AFAIK Numeric arrays are basically C arrays
>>having [] intrinsically so there's no need no deliver it via
>>__getitem__.
> 
> 
> I would buy your argument if I couldn't find the "__getitem__" method.
> But it does exist ! Except that it is hidden is the class __dict__ and
> apparently cannot be recovered from the instance.__getitem__ call ...

This is strange because it's not the same behaviour as in a pure
Python class. If you really need __getitem__ you could write a
wrapper (or derive, not sure if it is possible):

class sbArray(object):
     def __init__(self, plainarray):
         self.data = plainarray
     def __getitem__(self, idx):
         return self.data[idx]

:)

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