mock
pytest-flake8
flake8-2020; python_version>="3.6"
virtualenv>=13.0.0
pytest-virtualenv>=1.2.7
pytest>=3.7
wheel
coverage>=4.5.1
pytest-cov>=2.5.1
paver; python_version>="3.6"
futures; python_version=="2.7"
pip>=19.1 # For proper file:// URLs support.