pip
packaging
setuptools
six
vistir
wheel

[:python_version < "2.7"]
importlib

[:python_version <= "2.7"]
contextlib2
funcsigs

[dev]
pre-commit
isort
flake8
rope
invoke
parver
towncrier
wheel

[dev:python_version >= "3.5"]
mypy
flake8-bugbear

[dev:python_version >= "3.6"]
black

[tests]
pytest-timeout
pytest
pytest-xdist
pytest-cov
twine
readme-renderer[md]
