Tkinter problem: TclError> couldn't connect to display ":0

Dave Farrance df at see.replyto.invalid
Fri Feb 5 06:20:44 EST 2016

gemjack.pb at wrote:

>This fixed my problem with thkinter.....   sudo cp ~/.Xauthority ~root/

Which means that you were creating a GUI window with Python as root,
which is to be avoided if you can. If you can't avoid it and you're
running it with sudo in a bash console, rather than a root console, then
I'd suggest adding the line...

XAUTHORITY=$HOME/.Xauthority the root's .bashrc which avoids putting a specific user's
xauthority file in the root directory.

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