Can I do this faster?

[Michael Hudson]

Horst Gassner <horst at proceryon.at> writes:

> Hello!
> 
> The following code is executed very often in my program and I would be
> happy if someone could help me to speed this up.
> 
> def __GetRowID (s, row):
> 	for key in s.__rowDict.keys():
> 		if s.__rowDict[key]['data'] == row:
> 			return key

Try this?

def __GetRowID (s, row):
    return filter(lambda (k,v),r=row:v['data']==r,
                        s.__rowDict.items())[0][0]


It *might* be a bit faster.  Not a lot, I suspect.  Would you let me
know?  I'm kinda curious...

HTH,
M.

-- 
  The only problem with Microsoft is they just have no taste.
              -- Steve Jobs, (From _Triumph of the Nerds_ PBS special)
                         and quoted by Aahz Maruch on comp.lang.python