pytest >=4.6.6,<4.7; python_version < "3.0"   # PyTest 4.6.x are the last Py2 and Py3 releases
pytest >=4.6.6; python_version > "3.0"
pytest-tempdir >= 2019.9.16
psutil
pyzmq
msgpack>=0.5,!=0.5.5
