I am trying to use matplotlib to generate some figures non-interactively
via cron, but I can not seem to get matplotlib.figure to import without
a gtk error, even when I specify to use an image backend. The problem
seems to be related to trying to import gtk when no X server is present.
The script runs fine when i am logged in locally, and when logged in
remotetely with X11 forwarding, but it fails when run through cron or
when logged in remotely with no X-server. It also does not help if I run
the script as: python script -dAgg

I am running matplotlib 0.91.1. Any hints on how to make this work? Am I
missing something here?

Thanks!

j

Here is an example (minimal) script that causes the error:

#start script
import matplotlib
matplotlib.use('Agg')

import matplotlib.figure
#end script

Output=
Traceback (most recent call last):
  File "nox_test.py", line 5, in ?
    import matplotlib.figure
  File
"/home/jkitchin/lib/python2.4/site-packages/matplotlib/figure.py", line
10, in ?
    from axes import Axes, Subplot, PolarSubplot, PolarAxes
  File "/home/jkitchin/lib/python2.4/site-packages/matplotlib/axes.py",
line 13, in ?
    from matplotlib import axis as maxis
  File "/home/jkitchin/lib/python2.4/site-packages/matplotlib/axis.py",
line 14, in ?
    from patches import bbox_artist
  File
"/home/jkitchin/lib/python2.4/site-packages/matplotlib/patches.py", line
12, in ?
    import matplotlib.mlab as mlab
  File "/home/jkitchin/lib/python2.4/site-packages/matplotlib/mlab.py",
line 2481, in ?
    class SortedStringsScrolledWindow(gtk.ScrolledWindow):
NameError: name 'gtk' is not defined


-- 
-----------------------------------
John Kitchin
Assistant Professor
Doherty Hall 4210A
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
http://kitchingroup.cheme.cmu.edu

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