Fredrik Lundh: > better in what sense? With better I may mean faster, or needing less memory, or requiring a shorter code, or other things. It depends on many things, related to the program I am creating.
Thank you for the timings, you are right, as most times. Sometimes I am wrong, but I try to suggest correct things and I usually try to be helpful, as you do too, and I am learning still. I have done timings for other things, but not for this one :-) I have assumed that the version using iteritems (I think that in Py3.0 items will become iteritems) is the faster in that situation (but your test shows that I was wrong). This seems to require one hash access, plus the iteration: ... for key in sampledict if sampledict[key] ... This seems to require just the iteration plus the key,year tuple creation: ... for key,year in sampledict.iteritems() if year ... I have assumed that the hash access + an interation is slower, but maybe the tuple object creation is slow(er) too. As usual to know what's better in a given Python version you have to test it. Bye, bear hugs, bearophile -- http://mail.python.org/mailman/listinfo/python-list
