matplotlib/matplotlib — pull request #1183 by NelleV (2012-08-31 14:08:36+00:00)
Title: FIX undefined elements were used at several places in the mlab module

There were (and still are, see FIXME) undefined elements in the mlab module. it seems like this module is quite old and not very well tested in terms of coverage; It's also probably not widely used. I've fixed some of the problems but it might be worth it to do a huge clean up in the near future.