Adding attributes stored in a list to a class dynamically.
bruno.42.desthuilliers at wtf.websiteburo.oops.com
Mon Sep 3 11:34:31 CEST 2007
Brian Munroe a écrit :
> On Sep 2, 3:33 pm, Steven D'Aprano <st... at REMOVE-THIS-
> cybersource.com.au> wrote:
>> In a nutshell, like all double-underscore methods, __setattr__ are for
>> overriding behaviour in your own classes. With very few exceptions, you
>> shouldn't need to directly call double-underscore methods (although you
>> often may _write_ double-underscore methods).
> I think I understand. You are saying that if I wanted to override the
> normal behavior when doing something like
> p1.firstName = "Brian"
> then I'd override __setattr__()?
That's one possible solution. Another one is to use a property object or
a custom descriptor (you should find relevant documentation on python.org).
> But if I am doing something like creating dynamic attributes, the more
> 'correct' way is to use setattr? Even though they both appear to do
> the same thing, the more Pythonic way is to never directly call magic
> methods (if you can help it)?
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