Comment 2 for bug 1177172

In the meantime you might want to look at the csvkit suite.

"csvkit is to tabular data what the standard Unix text processing suite (grep, sed, cut, sort) is to text."

http://csvkit.readthedocs.org/en/latest/

Krzysztof Dorosz released an extension called csvpys that can compute arbitrary Python expressions over each row.

https://github.com/cypreess/csvkit/blob/master/docs/scripts/csvpys.rst