Have you experienced with problem in Guake, that after writting exit command tab just won’t close and it stays frozen ?
I did but I’ve found really nice solution for this unpleasant situation. As found on launchpad.net problem is probably in one file:
/usr/lib/python3/dist-packages/guake/guake_app.py
by editing this file you can fix the behavior. But there is also an easier solution ( as I think ) and it’s just about to install one library to your system called libutempter0 . So just open your terminal and write
sudo apt install libutempter0
Now close all instances of Guake. In terminal you can do that by typing
sudo pkill guake
Open guake again and problem with tab closing should be solved.