A python module of mine could draw a plot, and so imports from matplotlib.
Actually, plotting is part of the module test that is in
if __name__==__main__
But this kills my job trying to run non-interactively.
This is IMO rather nasty behavior. matplotlib should not try to open the
display just because you import it.
from matplotlib.pyplot import *
File "/usr/lib64/python2.6/site-packages/matplotlib/pyplot.py", line 78,
in <module>
new_figure_manager, draw_if_interactive, show = pylab_setup()
File "/usr/lib64/python2.6/site-packages/matplotlib/backends/__init__.py",
line 25, in pylab_setup
globals(),locals(),[backend_name])
File "/usr/lib64/python2.6/site-
packages/matplotlib/backends/backend_gtkagg.py", line 10, in <module>
from matplotlib.backends.backend_gtk import gtk, FigureManagerGTK,
FigureCanvasGTK,\
File "/usr/lib64/python2.6/site-
packages/matplotlib/backends/backend_gtk.py", line 8, in <module>
import gtk; gdk = gtk.gdk
File "/usr/lib64/python2.6/site-packages/gtk-2.0/gtk/__init__.py", line
64, in <module>
_init()
File "/usr/lib64/python2.6/site-packages/gtk-2.0/gtk/__init__.py", line
52, in _init
_gtk.init_check()
RuntimeError: could not open display
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