There is a new pull request by pfpulux against master on the void-packages repository

https://github.com/pfpulux/void-packages python-Flask-Babel
https://github.com/void-linux/void-packages/pull/21277

python-Flask-Babel: update to 1.0.0.


A patch file from https://github.com/void-linux/void-packages/pull/21277.patch is attached