[Tutor] Performance difference, ``in'' vs ``has_key()''
jfouhy at paradise.net.nz
Mon Jul 18 00:07:59 CEST 2005
Quoting Bill Campbell <bill at celestial.net>:
> I'm going to be doing some work where I'll be doing existence
> testings on keys on about a million records where it may require
> multiple passes so I'm a bit concerned about the timing of these
If you're just doing existence testing, is it an option to use a set? (builtin
to Python 2.4)
I admit, I don't know how it performs. But it would seem the most appropriate
of the builtin data structures.
More information about the Tutor