0.9.7 installs all files from sdist into site-packages

[mgorny]

$ ls /tmp/portage/dev-python/eyeD3-0.9.7/image/usr/lib/python3.8/site-packages/
AUTHORS.rst       HISTORY.rst  MANIFEST.in  README.rst  eyed3                  poetry.lock   tests
CONTRIBUTING.rst  LICENSE      Makefile     examples    eyed3-0.9.7.dist-info  requirements  tox.ini

See https://python-poetry.org/docs/pyproject/#include-and-exclude

You need to use something like:

{ path = "poetry.lock", format = "sdist" },

for every file in include. Otherwise, it'll end up being installed.