"Steven D'Aprano" <[EMAIL PROTECTED]> wrote:
> I'm not sure how to do this, or where to start looking for the right
> information, so any advice would be appreciated.
>
> I want to implement a class with two (or more) different ways of looking
> at its attributes.
>
> One example of this might be
Yeah, that's what I meant. Thanks.
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Paul Rubin wrote:
> Steven D'Aprano <[EMAIL PROTECTED]> writes:
>
> class Parrot(object):
> x = property(getx, setx)
> y = property(gety, sety)
>
> def getx(self):
> return self.a + self.b
> def setx(self, x):
> y = self.y # calls gety
> self.a, self.b = 2*x - y, y-x
>
>
Steven D'Aprano <[EMAIL PROTECTED]> writes:
> Anyone have any good ideas for how I should implement this?
These days you can use properties. Before, you'd have had to do it
manually with __setattr__ / __getattr__ methods. Here's how I'd do it
with properties, if I have the math right. You're us
Steven D'Aprano wrote:
> It is important that there are no privileged attributes, e.g. in the
> above example, I can set any of x, y, z, r, theta or phi and all the
> others will automatically reflect the changes.
http://users.rcn.com/python/download/Descriptor.htm#properties
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I'm not sure how to do this, or where to start looking for the right
information, so any advice would be appreciated.
I want to implement a class with two (or more) different ways of looking
at its attributes.
One example of this might be complex numbers, which can be written in
Cartesian form (x
