-r requirements.txt
coverage==4.5.2
coveralls==1.5.1
flake8==3.5.0
flake8-per-file-ignores==0.6.0
mock==2.0.0
pytest==4.2.1
pytest-cov==2.6.0

-r requirements.txt
coverage==4.5.2
coveralls==1.5.1
flake8==3.5.0
flake8-per-file-ignores==0.6.0
mock==2.0.0
pytest==4.2.1
pytest-cov==2.6.1

Update pytest-cov from 2.6.0 to 2.6.1
Update pytest-cov from 2.6.0 to 2.6.1
