-r requirements.txt autopep8==1.5.3 flake8==3.9 flake8-builtins==1.5.3 flake8-docstrings==1.5.0 flake8-import-order==0.18.1 flake8-import-single==0.1.5 flake8-quotes==3.2.0 pytest==6.2.2 pytest-cov==2.11.1 pytest-datafiles==2.0 yamllint==1.26.0