Optimization of __len__() in cgi.py
Georg Brandl
g.brandl-nospam at gmx.net
Wed Aug 16 11:35:51 EDT 2006
Bob Kline wrote:
> I have a suggestion for speeding up the performance of code like this:
>
> fields = cgi.FieldStorage()
> if fields: ...
>
> which, as it turns out, invokes FieldStorage.__len__(), which in turn
> calls FieldStorage.keys(), which builds a list of keys by hand, taking
> several minutes for large forms. This implementation of keys() reduces
> the amount of time taken by several orders of magnitude:
>
> def keys(self):
> return {}.fromkeys([i.name for i in self.list]).keys()
>
> Is there a better place for submitting suggestions like this?
Post a RFE to the Python Tracker at
http://sourceforge.net/tracker/?group_id=5470&atid=355470
If you want, assign it to me (gbrandl).
Georg
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