.travis.yml

language: python

matrix:
    include:
        - python: 2.7
          env: TOXENV=cover
        - python: 3.7
          env: TOXENV=cover3
          dist: xenial          # required for Python >= 3.7
        - python: 3.7
          env: TOXENV=docs
          dist: xenial          # required for Python >= 3.7
        - python: 2.7
          env:
            - TOXENV=py27
            - END_TO_END=1
        - python: 3.4
          env:
            - TOXENV=py34
            - END_TO_END=1
        - python: 3.5
          env:
            - TOXENV=py35
            - END_TO_END=1
        - python: 3.6
          env:
            - TOXENV=py36
            - END_TO_END=1
        - python: 3.7
          env:
            - TOXENV=py37
            - END_TO_END=1
          dist: xenial          # required for Python >= 3.7
        - name: "Python: 3.7 on macOS"
          language: sh          # 'language: python' is not yet supported on Travis CI macOS
          os: osx
          osx_image: xcode10.2  # Python 3.7.2 running on macOS 10.14.3
          env:
            - TOXENV=py37
            - END_TO_END=1

install:
    - travis_retry pip install virtualenv tox pexpect

script:
    - travis_retry tox