On Wed, Dec 5, 2012 at 10:57 AM, Daniel Doo <d...@topekacapitalmarkets.com> wrote: > I am new to Python. Is there a method to “join” two pipe delimited files > using a unique key that appears in both files? I would like to implement > something similar to the Unix join command.
If the files are small enough to fit in virtual memory, load one of the files into a dict where the key is the join field and the value is the full line. Then iterate over the other file one line at a time, checking to see if the join field is in the dict. If it is, output the joined line. Otherwise, skip it. -- http://mail.python.org/mailman/listinfo/python-list
