"It may be duplicated with #572. A locale env is '*.UTF-8' and resources are named '*.UTF8' on Python 2.7 environment, Debian wheezy."
Yes, I confirm this bug: cd /usr/lib/python2.7/dist-packages/keepnote/rc/locale cp -r de_DE.UTF8 de_DE.UTF-8 (and all other languages) After start language is accepted and working!! Please fix it somehow!