Do you ever synchronize your `__version__` variable with your pyproject.toml, config.ini?
I wrote this #python build tool a while back and have been using it everywhere.
For a time, the python community was on the cusp of a folksonomy standardization for metadata as dunder strings. It went nowhere and now pretty much only `__version__` is still ubiquitous. Had it gone to standard, it would probably look like the `__about__.py` files many projects have.