to pass self or not to pass self

Lie Ryan lie.1296 at
Wed Mar 17 14:16:53 CET 2010

On 03/17/2010 08:12 PM, Bruno Desthuilliers wrote:
> Patrick Maupin a écrit :
>> On Mar 16, 1:59 pm, Jason Tackaberry <t... at> wrote:
>>> Why not create the bound methods at instantiation time, rather than
>>> using the descriptor protocol which has the overhead of creating a new
>>> bound method each time the method attribute is accessed?
>> Well, for one thing, Python classes are open.  They can be added to at
>> any time.  For another thing, you might not ever use most of the
>> methods of an instance, so it would be a huge waste to create those.
> A possible optimization would be a simple memoization on first access.

But what if, for example, one uses some descriptor/metaclass magic to
make it so that each subsequent access to the attribute returns a method
bound to different objects?

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