[Numpy-discussion] user_array.container and __eq__ [was: Re: (no subject)]
Robert Kern
robert.kern at gmail.com
Sun Sep 3 01:10:47 EDT 2006
Bill Spotz wrote:
> I think I see a bug in lib.user_array.container class. The __eq__
> method is
>
> def __eq__(self,other): return self._rc(equal(self.array,other))
>
> the expression equal(self.array,other) will return an ndarray of
> bools, which is then converted, by way of self._rc(), to whatever the
> derived class is. In my case, this does not make sense, because an
> array of bools is not a valid argument to the constructor (actually,
> the data buffer is accepted, but the results are not reliable). What
> I want, and it seem most people would want in this situation, is just
> the array of bools; i.e. don't apply the self._rc() method.
No, it's not a bug. It's just the design of that class: always return the same
class of object. Of course, since that class only exists to be subclassed, if
you need different behavior from those methods, override them.
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
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