matplotlib/matplotlib — pull request #1297 by montefra (2012-09-22 12:19:06+00:00)
Title: pyplot.plotfile. gridon option added with default from rcParam.

This should be a clean pull request of issue ![#1205][https://github.com/matplotlib/matplotlib/pull/1205]

Recap: the original plotfile function draw the axes grids at each call. This pull request implements a
keywords to enable or disable the grid. The default is taken from rc.Params['axes.gris'].
This keyword is deprecated and will be deleted from future releases