It looks like this package has been ported to Python 3, but has not yet been uploaded. The last changelog entry on salsa (https://salsa.debian.org/philmd-guest/git-publish.git) says:
git-publish (1.5.1-1) UNRELEASED; urgency=medium
* Non-maintainer upload.
* Update to git-publish 1.5.1:
- few bugfixes
- added more options
- use Python3
-- Philippe Mathieu-Daudé <f4...@amsat.org> Fri, 06 Dec 2019 15:53:10 +0100
Philippe, would you like me to sponsor an upload of the package?
--
Jelmer Vernooij <jel...@jelmer.uk>
PGP Key: https://www.jelmer.uk/D729A457.asc
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