Mark Lawrence
3/10/2010 1:40:00 PM
Neal Becker wrote:
> Want to switch __call__ behavior. Why doesn't this work? What is the
> correct way to write this?
>
> class X (object):
> def __init__(self, i):
> if i == 0:
> def __call__ (self):
> return 0
> else:
> def __call_ (self):
> return 1
>
>
> x = X(0)
>
> x()
> TypeError: 'X' object is not callable
>
>
I think it's because X has already been constructed when __init__ is
called, so __new__ is the place for your conditional code.