polib allows you to manipulate, create, modify gettext files
(pot, po and mo files).

You can load existing files, iterate through it's entries, add,
modify entries, comments or metadata, etc... or create new po files
from scratch.

polib supports out of the box any version of python ranging from
2.4 to latest 3.X version.

To install python3 bindings run the slackbuild with PYTHON3=yes.

  # PYTHON3=yes ./polib.SlackBuild

Optional dependency: Sphinx