After a quick search, I found that Gufw is missing a python dependency. It appears that the python-gi package needs to be added as a dependency.
Steps to fix: 1. sudo apt install python-gi 2. gufw 3. Type in password -- You received this bug notification because you are a member of Gufw Developers, which is subscribed to Gufw. https://bugs.launchpad.net/bugs/1566056 Title: No mudule named gi Status in Gufw: New Bug description: Gufw crashes when attempting to start it on Ubuntu 16.04 Beta 2. Here is the traceback information: Traceback (most recent call last): File "/usr/share/gufw/gufw/gufw.py", line 21, in <module> from view.gufw import Gufw File "/usr/share/gufw/gufw/view/gufw.py", line 19, in <module> import gi ImportError: No module named gi Steps to reproduce: 1. sudo apt install gufw 2. gufw 3. Type in password To manage notifications about this bug go to: https://bugs.launchpad.net/gui-ufw/+bug/1566056/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~gufw-developers Post to : gufw-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~gufw-developers More help : https://help.launchpad.net/ListHelp