_tkinter.TclError: couldn't connect to display ":0" #2
Description
File "/home/luser/.local/lib/python2.7/site-packages/matplotlib/backend_bases.py", line 171, in new_figure_manager
return cls.new_figure_manager_given_figure(num, fig)
File "/home/user/.local/lib/python2.7/site-packages/matplotlib/backends/backend_tkagg.py", line 1049, in new_figure_manager_given_figure
window = Tk.Tk(className="matplotlib")
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1818, in init
self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use)
_tkinter.TclError: couldn't connect to display ":0"