Matplotlib does not open the window with the plot

[Jakub Nowacki]

Affected version 0.98.3-3ubuntu2 (I've just checked this one). The window doe not open (show) and there are any errors (even using --verbose-helpful option). In my case it was due to wrong backend in the matplotlibrc file. Workaround is to edit matplotlibrc (sudo gedit /etc/matplotlibrc) and change the backend walue from Agg to some other (in my case 'backend : GTK' worked fine).

[Benjamin Drung (bdrung)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Do you have an small example? This bug is maybe linked with bug #278764.

[Jakub Nowacki (j-s-nowacki)]

Yes its basically the same issue as in https://bugs.launchpad.net/bugs/278764 .

Example - in python (ipython) console type:

from pylab import *
plot([1,2,3])
show()

You should see a window with a straight line. With 'backend: Agg' the window after show() just wont appear (without any error). I've just checked values GTK and GTKApp which work fine.