I am new to python and am trying to build a small app. It needs to be a GUI app and I was wanting to containerise it with docker. I am getting the following error and can not find a solution
No protocol specified
No protocol specified
Traceback (most recent call last):
File "tkinker.py", line 7, in <module>
tinker = Tk()
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 ":0.0"
It starts locally but wont start in docker. My OS is Xubuntu.
I have created a sample app (below), see run-test.sh https://github.com/jeremysells/test/tree/master/docker-tkinter
As described here, you would need an X11 graphic layer.
But since you are already on an '(X)Ubuntu, setting the DISPLAY should be enough:
export DISPLAY=127.0.0.1:0.0
docker run -it -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix yourImage
Check also XAuthority.