-r requirements.txt

flake8==3.9.2 ; python_version < '3.6'
flake8>=5.0.4; python_version >= '3.6'
pytest>=4.6.10,<5 ; python_version < '3'
pytest>=5.4.2,<8 ; python_version >= '3'
coverage>=5.1,<6
pytest-expect>=1.1.0,<2
mock>=3.0.5,<4 ; python_version < '3.3'
setuptools; python_version >= '3.12'