On 6/27/10 9:30 PM, alex23 wrote:
Stephen Hansen<me+list/pyt...@ixokai.io> wrote:
P.S. The removal of callable is something I don't understand in Python
3: while generally speaking I do really believe and use duck typing, I
too have on occassion wanted to dispatch based on 'is callable? do x'.
Sometimes its not convenient to do so via duck typing. Its rare. But it
is there. That isinstance()/issubclass got a boost in power with the
ABC's and registering, while at the same time the ability to introspect
about the function-y callable-y ness of a function was removed? Makes no
sense to me. But alas!
There's always: isinstance(<object>, collections.Callable)
What the hell? When did that show up? o.O (Did I not pay attention
enough during the ABC conversations? It seemed so boring).
A) how is Callable a collection, in any way shape or form? And B) does
that really return True for everything callable-esque? (I don't have a
3.x to play with on this temporary computer)
--
... Stephen Hansen
... Also: Ixokai
... Mail: me+list/python (AT) ixokai (DOT) io
... Blog: http://meh.ixokai.io/
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