Make a string translatable

If you introduce a new string in the source code that you would like to be translated into different languages, you need to do 2 things:

1. Enclose the string in _()
2. Upload a pot file to Launchpad

Example of enclosed string:

print(_("Hello!"))

To generate a pot file, run

python3 tools/generate-pot-file.py

It requires the xgettext program to be on the path. See gettext for instructions how to install it.

You should now have a file:

translations/timeline.pot

that contains an entry for your string looking something like this:

#: source/timeline.py:58
msgid "Hello!"
msgstr ""

Upload this pot file to Launchpad using this form: https://translations.launchpad.net/thetimelineproj/trunk/+translations-upload. (It requires login.)

Now translators will see your new string and can translate it.