If --gui is used with no interface, edit the policy for the GUI itself.
tree9a9a97a12d93745b9427b43608646d637ae2510e
-rwxr-xr-x 2341 0alias
-rw-r--r-- 1258 0alias.1
-rwxr-xr-x 4353 0launch
-rw-r--r-- 3917 0launch.1
-rwxr-xr-x 2024 0store
-rw-r--r-- 2635 0store.1
-rw-r--r-- 26536 COPYING
-rw-r--r-- 80 MANIFEST.in
-rw-r--r-- 2080 README
drwxr-xr-x - debian
-rwxr-xr-x 915 makedist
-rw-r--r-- 480 setup.py
drwxr-xr-x - tests
drwxr-xr-x - zeroinstall