Message197849
Tim Peters added the comment:
> ..., _fast=slow, ...
>
> in an argument list means we endure the slow lookup (of `slow`) only
> once, when the function is first defined. When the function is
> _called_, that binding is available via the local (much faster lookup)
> variable `_fast`.
>
> Purely a speed trick, but can make a real difference in very heavily
> used functions.
Thanks for the answer, Tim. Interesting optimization. |
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Date |
User |
Action |
Args |
2013-09-16 00:36:08 | orsenthil | set | recipients:
+ orsenthil, tim.peters, georg.brandl, rhettinger, smichr, eric.araujo, sandro.tosi, python-dev, michael.driscoll |
2013-09-16 00:36:08 | orsenthil | link | issue14927 messages |
2013-09-16 00:36:07 | orsenthil | create | |
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