sudo: false
language: python
python:
    - "3.6"
install: pip install tox-travis coveralls
script: tox
after_success:
    - coveralls

sudo: false
language: python
python:
    - "3.5"
install: pip install tox-travis coveralls
script: tox
after_success:
    - coveralls

Downgrade supported Python to 3.5
Downgrade supported Python to 3.5
