[Tutor] Best Known Method for Filtering redundant list items.

Chris Hengge pyro9219 at gmail.com
Thu Nov 30 21:51:02 CET 2006

Anyone point me to something more efficient then

for item in list1:
     if item not in list2:

This just seems to take a bit a time when there are thousands or dozens of
thousands of records just to filter out the dozen or so copies..

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