black==18.6b4
isort==4.3.*
pylava==0.1.*
pytest==3.7.*
pytest-cov==2.5.*

black==18.6b4; python_version>="3.6"
isort==4.3.*
pylava==0.1.*
pytest==3.7.*
pytest-cov==2.5.*

Install black only for python >= 3.6
Install black only for python >= 3.6
