language: python
python:
  - "3.3"
  - "3.4"
  - "3.5"
  - "3.6"
script:
  - make test
after_success:
  - coveralls

language: python
python:
  - "3.3"
  - "3.4"
  - "3.5"
  - "3.6"
install:
  - pip install -r requirements_test.txt
script:
  - make test
after_success:
  - coveralls

Install test dependencies before Travis build
Install test dependencies before Travis build