kennethreitz/tablib — pull request #155 by gavinwahl (2014-06-24 21:24:36+00:00)
Title: Update the vendored unicodecsv to fix None handling

The old version of unicodecsv incorrectly (according https://docs.python.org/2/library/csv.html#csv.writer) encoding `None` values as the string `'None'`, instead of the string `''` as the python documentation specifies.

The newest version of unicodecsv has fixed this.

Fixes #121