According to setup.cfg the pytest-cover package is required for testing. This is unfortunate since pytest-cover was merged back to pytest-cov and is no longer maintained. Please switch waitress to use pytest-cov instead of pytest-cover.
It looks like waitress works correctly with pytest-cov - I tested with pytest-cov version 3.0.0. So simple replacement of pytest-cover by pytest-cov in setup.cfg should solve this issue.
According to
setup.cfg
thepytest-cover
package is required for testing. This is unfortunate sincepytest-cover
was merged back topytest-cov
and is no longer maintained. Please switchwaitress
to usepytest-cov
instead ofpytest-cover
.