Hi, PEP 527 [1] asks for exactly one source "tarball" for uploads to pypi, so you may expect that tarballs are dropped and just zip files are uploaded to pypi. So please be aware to look for both zip files and tarballs in watch files and anything else. I became aware of this for the setuptools package [2]. Matthias [1] https://www.python.org/dev/peps/pep-0527/ [2] https://github.com/pypa/setuptools/issues/902