finding out the number of rows in a CSV file

Simon Brunning simon at
Wed Aug 27 13:48:46 CEST 2008

2008/8/27 Jon Clements <joncle at>:

>> len(list(csv.reader(open('my.csv'))))

> Not the best of ideas if the row size or number of rows is large!
> Manufacture a list, then discard to get its length -- ouch!

I do try to avoid premature optimization. ;-)

Simon B.

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