coveralls
mock
pytest
pytest-cov
pytest-xdist
twine
# readme-renderer (required by twine) 25.0 has removed support for Python 3.4
readme-renderer>21.0,<25.0; python_version == '3.4'
# try to solve CI problem
importlib-metadata==1.7.0; python_version == '3.5'
importlib-metadata==1.1.3; python_version == '3.4'