>I installed the python3-liblarch package from the daily repository. Instead of installing to /usr/lib/python3/dist-packages it installed to /usr/lib/python2.7/dist-package
That's the problem. Manually coping liblarch and liblarch-gtk folders from /usr/lib/python2.7/dist-package to /usr/lib/python3/dist-packages solves the problem for me.
>I installed the python3-liblarch package from the daily repository. Instead of installing to /usr/lib/ python3/ dist-packages it installed to /usr/lib/ python2. 7/dist- package
That's the problem. Manually coping liblarch and liblarch-gtk folders from /usr/lib/ python2. 7/dist- package to /usr/lib/ python3/ dist-packages solves the problem for me.