gather information from various files efficiently

[Keith Dart]

Fredrik Lundh wrote:
> ...
>>if dct.has_key(a):
>>    dct[a].append(b)
>>else:
>>    dct[a] = [b]
> 
> 
> the drawback here is that if the number of collisions are high, you end
> up doing lots of extra dictionary lookups.  in that case, there are better
> ways to do this.

Sigh, this reminds me of a discussion I had at my work once... It seems 
to write optimal Python code one must understand various probabilites of 
your data, and code according to the likely scenario. 8-) Now, perhaps 
we could write an adaptive data analyzer-code-generator... ;-)







-- 
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Keith Dart <kdart at kdart.com>
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