bruno at modulix wrote:
> [EMAIL PROTECTED] wrote:
> (meta : please don't top-post)
> > Intuitively, the name lookup on
> > self.parent.foo would be faster than if you passed in the object in
> > question
>
>
> Each dot means doing a lookup in a namespace. The more dots, the more
> lookups. And lookups do have a cost.
hmm, intuition may not be right in this case.
Lookups do have a cost - now I"m almost tempted to write and run a test
for this - but the cost of each lookup is also relative to the current
scope. I haven't looked over the implementation of the python
interpreter - but I would hope the lookup on self would be optimized
and trivial. The next relevant question would be is it cheaper to
lookup self.parent or to look up a method variable, which I supsect
would depend on the number of names in self vs. number of names in the
method.
>
> --
> bruno desthuilliers
> python -c "print '@'.join(['.'.join([w[::-1] for w in p.split('.')]) for
> p in '[EMAIL PROTECTED]'.split('@')])"
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