The current https://pypi.org/project/gpg/ entry is outdated as it shows 1.10.0 from 2018-02
as latest version. (On contrast to e.g. Ubuntu which has https://packages.ubuntu.com/search?suite=default§ion=all&arch=any&keywords=python3-gpg&searchon=names which has 1.14)
The maintainer is also outdated as "Justus Winter" does not work on this anymore.
As there are difficulties providing the official binding via pypi directly, there still should be a pointer to what the current version is. As many python developers check pypi first before looking for other versions of their modules.
So a minimal update should change the maintainer, add a sentence that the python binding are distributed with current gpgme releases and give the current version. number