--requirement=requirements-checks.txt
--requirement=requirements-tests.txt
coveralls

--requirement=requirements-checks.txt
--requirement=requirements-tests.txt
coveralls
# Dependency of coveralls:
cryptography < 3; python_version == '2.7' and platform_python_implementation == "PyPy"

Install cryptography < 3 on PyPy2
Install cryptography < 3 on PyPy2
