matplotlib data path /usr/share/matplotlib
loaded rc file /home/ngirard/.matplotlibrc
matplotlib version 0.81alpha
verbose.level helpful
interactive is False
platform is linux2
numerix Numeric 23.1
font search path ['/usr/share/matplotlib']
loaded ttfcache file /home/ngirard/.ttffont.cache
backend GTKAgg version 2.6.2
Traceback (most recent call last):
  File "contour_demo.py", line 70, in ?
    savefig('contour_demo')
  File "/usr/lib/python2.4/site-packages/matplotlib/pylab.py", line 743, in savefig
    return fig.savefig(*args, **kwargs)
  File "/usr/lib/python2.4/site-packages/matplotlib/figure.py", line 517, in savefig
    self.canvas.print_figure(*args, **kwargs)
  File "/usr/lib/python2.4/site-packages/matplotlib/backends/backend_gtkagg.py", line 96, in print_figure
    try: agg.print_figure(filename, dpi, facecolor, edgecolor, orientation)
  File "/usr/lib/python2.4/site-packages/matplotlib/backends/backend_agg.py", line 423, in print_figure
    self.draw()
  File "/usr/lib/python2.4/site-packages/matplotlib/backends/backend_agg.py", line 360, in draw
    self.figure.draw(renderer)
  File "/usr/lib/python2.4/site-packages/matplotlib/figure.py", line 395, in draw
    for a in self.axes: a.draw(renderer)
  File "/usr/lib/python2.4/site-packages/matplotlib/axes.py", line 1353, in draw
    self.xaxis.draw(renderer)
  File "/usr/lib/python2.4/site-packages/matplotlib/axis.py", line 530, in draw
    self.major.formatter.set_locs(majorLocs)
  File "/usr/lib/python2.4/site-packages/matplotlib/ticker.py", line 295, in set_locs
    if self._useOffset: self._set_offset(d)
  File "/usr/lib/python2.4/site-packages/matplotlib/ticker.py", line 302, in _set_offset
    ave_loc = mean(locs)
  File "/usr/lib/python2.4/site-packages/Numeric/MLab.py", line 167, in mean
    return add.reduce(m,axis)/float(m.shape[axis])
ZeroDivisionError: float division