-r requirements.txt
coverage==4.5.2
coveralls==1.6.0
flake8==3.7.6
mock==2.0.0
pytest==4.3.0
pytest-cov==2.6.1

-r requirements.txt
coverage==4.5.2
coveralls==1.6.0
flake8==3.7.7
mock==2.0.0
pytest==4.3.0
pytest-cov==2.6.1

Update flake8 from 3.7.6 to 3.7.7
Update flake8 from 3.7.6 to 3.7.7