Group 4 issues

[johnrisko]

TclError: no display name and no $DISPLAY environment variable]

It also looks like you guys have have hard-coded some things.

[chocoho]

After rebooting my VM, I got the same error.

[kqdtran]

I think I might have found something related to this problem http://stackoverflow.com/questions/2801882/generating-a-png-with-matplotlib-when-display-is-undefined, though I haven't been able to reproduce the error. WIll continue looking into it :-)

[chocoho]

I added

import matplotlib matplotlib.use('Agg')

Right after the line, "impot Tkinter" and I still get the same error. :(