[Python Wpg] Swapping object attribute values

[Stuart Williams]

Not knowing the context of your call to transpose, I wonder if instead
of writing
  anObject.transpose('field1', 'field2')
why you wouldn't just write this:
  anObject.field1, anObject.field2 = anObject.field2, anObject.field1

Stuart.

On Thu, Feb 26, 2009 at 7:15 AM, Sydney Weidman <syd at plug.ca> wrote:
> I like the way you can swap the values of variables in Python by saying
> something like:
>
> a, b = b, a
>
> but suppose I want a function that will swap arbitrary attributes on an
> object. Could I code that using the tuple unpacking assignment style? I
> ended up doing this:
>
>    def transpose(self, from_attr, to_attr):
>        """Transpose the co-ordinates from one axis to another"""
>        to_val = getattr(self,to_attr)
>        setattr(self, to_attr, getattr(self, from_attr))
>        setattr(self, from_attr, to_val)
>
> Is there a more compact, readable way to do this?
>
> Regards,
> Syd
>
>
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