async_generator
deprecation

[dev]
grayskull
ipython<6
pip
prospector
pylint==2.5.2
pytest-cov
pytest~=5.4
twine
yapf

[dev:python_version <= "3.5"]
pre-commit~=1.21

[dev:python_version > "3.5"]
pre-commit~=2.2

[docs]
Pygments==2.3.1
Sphinx==1.8.4
docutils==0.14
