language: python
python:
  - 2.7
  - 3.4
  - 3.5
  - 3.6
install:
    - pip install -r requirements-dev.txt
script:
    - py.test -v

language: python
python:
  - 2.7
  - 3.4
  - 3.5
  - 3.6
  - 3.7
  - 3.8
install:
    - pip install -r requirements-dev.txt
script:
    - py.test -v

Add Python 3.7 and 3.8
CI: Add Python 3.7 and 3.8
