Hi Matthias,The setup.py only lists pyzolib as install_requires, not setup_requires. Therefore, I assumed they were not intended to be installed at build time.
I am also not quite sure whether this package has an official test suite, so unittest.discover may be picking something which was unintended to be picked.
I can make a new upload with an explicit empty test target, will it solve your issue?
Many thanks for reporting this, Ghis
