I have no familiarity with the internals of wicd, but from a glance at the most recent commits it looks like wicd-curses has already been migrated to Python 3:

I have no familiarity with the internals of wicd, but from a glance at the most recent commits it looks like wicd-curses has already been migrated to Python 3: https://git.launchpad.net/wicd/log/curses https://git.launchpad.net/wicd/log/curses