Use the -a flag instead of "combine"
@@ -14,8 +14,7 @@ deps =
extras =
hiredis: hiredis
commands =
- {envpython} -b -m coverage run -p -m pytest -W always {posargs}
- {envpython} -b -m coverage combine --append
+ {envpython} -b -m coverage run -a -m pytest -W always {posargs}
[testenv:flake8]
basepython = python3.6
