Support for configobj and enthought.traits has been deleted (mainly before Matplotlib 0.98.5.2): http://matplotlib.svn.sourceforge.net/viewvc/matplotlib?view=revision&revision=6584 http://matplotlib.svn.sourceforge.net/viewvc/matplotlib?view=revision&revision=6665 http://matplotlib.svn.sourceforge.net/viewvc/matplotlib?view=revision&revision=6669 http://matplotlib.svn.sourceforge.net/viewvc/matplotlib?view=revision&revision=8495
in cvs.