I suggest downloading and using Electrum Appimage instead of manual from Python sources.
This is more simple to use and it should work fine for Ubuntu and Debian based Linux OS.
Appimage is similar like portable apps in wind0ws OS.
+1 for appimage!! Flawless and is easy to control by adding or deleting when a new version comes out. I places wipe scripts for Electrum and T Suite around in this forum if you want to use them. Its easy to wipe away all the trail using those scripts and app image. Just a thought.