Nick Coghlan added the comment: Are you able to confirm the version of setuptools involved is the same in both cases?
The reason I ask is that the interaction between pkg_resources-style namespace packages and native ones is known to be temperamental (https://packaging.python.org/guides/packaging-namespace-packages/#creating-a-namespace-package), and the suggested resolution is to make sure that if you're using pkg_resources namespaces at all then *all* packages contributing to the namespace should be using them. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue29144> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com