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[Condor-users] condor_submit problems: _gtk.init_check(), RuntimeError: could not open display


I am encountering a strange error when using condor_submit.  Executing a script on my own works fine without errors, but when I try to run it using condor_submit, I get the following errors when trying to import from pylab or pylot from matplotlib:

 File "../Local_Install//lib/python2.4/site-packages/matplotlib/pyplot.py",
line 95, in ?
 File "../Local_Install//lib/python2.4/site-packages/matplotlib/backends/__init__.py",
line 25, in pylab_setup
 File "../Local_Install//lib/python2.4/site-packages/matplotlib/backends/backend_gtkagg.py",
line 10, in ?
 File "../Local_Install//lib/python2.4/site-packages/matplotlib/backends/backend_gtk.py",
line 8, in ?
 File "/usr/lib/python2.4/site-packages/gtk-2.0/gtk/__init__.py", line 76, in ?
 File "/usr/lib/python2.4/site-packages/gtk-2.0/gtk/__init__.py",
line 64, in _init
RuntimeError: could not open display

This makes me think that there I am missing something in passing a permission to condor, but I have been unable to figure out what it is.  I'm not even plotting or displaying any images.  Are there any lines I need to add to my .cmd file?

Chris Prokop