pip>=18.0
certifi
setuptools>=36.2.1
virtualenv-clone>=0.2.5
virtualenv

[:python_version < "3"]
enum34

[:python_version < "3.5"]
typing

[dev]
towncrier
bs4
twine
sphinx<2
flake8<4.0,>=3.3.0
parver
invoke

[dev:python_version >= "3.6"]
black

[tests]
pytest<5.0
pytest-timeout
pytest-xdist
flaky
mock
