Minor vtkpython import conflict with matplotlib

This is James Phillips of http://zunzun.com, I'm in
the process of switching the site graphics from DISLIN
to matplotlib. I had some trouble pinning down why the
Y axis on my plots ws always in the wrong place, and
thought I'd pass along my findings to the mailing list.

If pylab is imported before vtk, everything works fine:

import pylab, vtkpython
pylab.ylabel('Frequency\n', multialignment='center', rotation=90)
n, bins, patches = pylab.hist([1,1,1,2,2,3,4,5,5,5,8,8,8,8], 5)
pylab.show()

If however vtk is imported first:

import vtkpython, pylab
pylab.ylabel('Frequency\n', multialignment='center', rotation=90)
n, bins, patches = pylab.hist([1,1,1,2,2,3,4,5,5,5,8,8,8,8], 5)
pylab.show()

then the Y axis label is positioned incorrectly on the
plots.

     James Phillips
     http://zunzun.com