[Tutor] Instance attribute as a parameter's default value

[Jan Eden]

Hi,

Jan Eden wrote on 26.08.2005:

>Hi,
>
>I need to use an instance attribute as the default value for a parameter to a 
>method.
>
>This obviously won't work:
>
>page.Children()
>
>def Children(self, id=self.id, level=2):
>
>How can I get the id parameter to use the attribute page.id? I know I could 
>simply use the method call
>
>page.Children(id=page.id)
>
>but I thought it is much more elegant to use a default value here.
>
>Is it possible?

Addition: I do use

def Children(self, id=0, level=2):
    if not id: id = self.id

right now. But still - there has to be a smarter way.

Thanks,

Jan
-- 
Any sufficiently advanced technology is insufficiently documented.