You can contribute to the translation of welcome messages by running django-admin makemessages -l lang_code inside of the django_cas_ng directory. Where lang_code is the language code for which you want to submit a translation. Then open the file django_cas_ng/locale/lang_code/LC_MESSAGES/django.po with a gettex translations editor (for example Translate and save the file. Think to add django_cas_ng/locale/lang_code/LC_MESSAGES/django.po to repo. Please do not add django_cas_ng/locale/lang_code/LC_MESSAGES/ to repo since .mo file can be generated by .po file.