dict.get and str.xsplit

[Steve Holden]

Marc 'BlackJack' Rintsch wrote:
> On Tue, 26 Feb 2008 06:02:12 -0800, bearophileHUGS wrote:
> 
>> This is a real difference, that has real impact on the programs I
>> write, so I often use the if/else approach, despite the dict.get()
>> method being semantically fitter and shorter.
>> So can the dict.get() method be speed up? And if not, why?
> 
> I guess it's the method lookup that's the slow part.  Factor it out of the
> loop and measure again::
> 
>     adict_get = adict.get
>     for _ in xrange(M):
>         for k in keys1:
>             r = adict_get(k, None)
>         for k in keys2:
>             r = adict_get(k, None)

And think about using the timeit module, since it's been included among 
the batteries for your convenience, and it removes some common pitfalls 
with cross-platform timings.

regards
  Steve
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