When Qtile updated to 0.18.1 it breaks some backward compatibility. it's fixed in latest config. Copy latest config from /etc/skel/.config/qtile/config.py to ~/.config/qtile/config.py or compare the changes with meld and merge necessary changes.
When Qtile updated to 0.18.1 it breaks some backward compatibility. it's fixed in latest config. Copy latest config from /etc/skel/.config/qtile/config.py to ~/.config/qtile/config.py or compare the changes with meld and merge necessary changes.