On Fri, 12 Mar 2010 22:56:37 +1100
Steven D'Aprano <st...@pearwood.info> wrote:
> You might be tempted to change the first reference to Unicode to cls as
> well, but sadly that does not work. The reason is complicated, and to
> be honest I don't remember it, but you will probably find it by
> googling for "python super gotchas".
Thank to your explanations, I may now have a guess on this :-)
class BASE(root):
def __new__(cls, ...):
...
obj = super(BASE, cls).__new__(cls, *args)
Let's say BASE is itself sub classed, but sub classes don't define their own
__new__. How else ensure that the root class (the one actually creating new
objects), is (one of) BASE's own base(s)? BASE beeing the top of a custom class
tree, it's a kind of constant for its sub classes.
Is this really a flaw, or instead a logical necessity?
Denis
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