Clipping the bottom labels

I have a similar problem because I use bigfonts. If you are

    > going to make a lot of these plots, you can change the
    > default for left, bottom, height, and width in your
    > matplotlibrc file. Look for the lines:

    > figure.subplot.left : 0.15 #0.125 # the left side of the
    > subplots of the figure figure.subplot.right : 0.925 # the
    > right side of the subplots of the figure
    > figure.subplot.bottom : 0.125 # the bottom of the subplots
    > of the figure figure.subplot.top : 0.925 # the top of the
    > subplots of the figure

And if you just need it for this figure

  fig = figure()
  fig.subplots_adjust(bottom=0.15)

JDH