BTW stasz, Maybe you'll have still some time for the following question. Trying my luck :)) Suppose I have several units (.py files), say test.py test1.py tets2.py , test.py being my main file. I've read I can import gettext and install in the main unit. Then, must I create .po files for each unit or is there a way to make a single .po file for the whole app. ?