vcunat's comments:
Unused parameter got removed.
CLI looks good now but the GUI still won't work with:
bin/..solaar-wrapped-wrapped:45: PyGIWarning:
Gtk was imported without specifying a version first.
Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
solaar.gtk.main()
solaar: error: Argument 0 does not allow None as a value