On Wed, 2005-07-06 at 15:08, Lango, Trevor M. wrote: > I have two lists, not necessarily of the same length. List #1 has two > columns. List #2 has one column. I would like to do the following: > > Scan list #1 line by line. If a match for column #1 in list #1 is found > in list #2, extract the matching lines and put them in a new list (#3). > Otherwise, leave the contents of lists #1 and #2 as they are. This looks like a job for "join".
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