pytest==4.6.2
pytest-cov==2.7.1
coverage==4.5.3
pytest-xdist==1.29.0
hypothesis

pytest==4.6.2  # rq.filter < 5
pytest-cov==2.7.1
coverage==4.5.3
pytest-xdist==1.29.0
hypothesis

Add an rq.filter to ensure pytest < 5
Add an rq.filter to ensure pytest < 5

This is required as pytest >= 5 is Python 3 only and Hyper-h2 supports
Python 2.
