Chris Angelico <ros...@gmail.com> writes: > This whole code is inside a loop that we took, in smoke testing, to a > couple hundred million rows (I think), with the intention of having no > limit at all. So this might only look at 60-100 headers, but it will > be doing so in a tight loop.
If you're talking about data sets that large, you should rethink the concept of using python dictionaries with a key for every row. Try importing your CSV into an SQL database and working from there instead. -- http://mail.python.org/mailman/listinfo/python-list
