File "/usr/lib/python2.3/site-packages/pylab.py", line 1, in ? 
from matplotlib.pylab import * 
File "/usr/lib/python2.3/site-packages/matplotlib/pylab.py", line 199, in ? 
import backends 
File "/usr/lib/python2.3/site-packages/matplotlib/backends/__init__.py", line 19, in ? 
globals(),locals(),) 
  File "/usr/lib/python2.3/site-packages/matplotlib/backends/backend_gtkagg.py", line 11, in ? 
    from backend_gtk import gtk, FigureManagerGTK, FigureCanvasGTK,\ 
  File "/usr/lib/python2.3/site-packages/matplotlib/backends/backend_gtk.py", line 21, in ? 
    from backend_gdk import RendererGDK 
  File "/usr/lib/python2.3/site-packages/matplotlib/backends/backend_gdk.py", line 31, in ? 
    import gtk, pango 
  File "/usr/lib/python2.3/site-packages/gtk-2.0/gtk/__init__.py", line 37, in ? 
    from _gtk import * 
RuntimeError: could not open display 
			
		
 
	
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