"Jason" <[EMAIL PROTECTED]> wrote:
> As far as I can tell, the best way to use super() with an __init__
> function is to stick to a rigid function signiture.
...
> Unfortunately, I don't see a way of avoiding this problem with super().
An easy way to avoid changing the method signature is to use a multi-stage
construction. So if your class hierarchy uses:
def __init__(self, foo, bar):
super(ThisClass, self).__init__(foo, bar)
... whatever ...
and you are adding another class to the hierarchy, but that needs a 'baz'
as well, don't change the signature for __init__, add another method:
def set_baz(self, baz): ...
Then at the point you construct the objects you can call:
x = DerivedClass(foo, bar)
x.set_baz(baz)
If set_baz isn't called then you either use a default value or throw an
error when something depends on it having been set.
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