.travis.yml

language: python

jobs:
  include:
    - python: 3.8
    - python: 3.7
    - python: 3.6
    - python: 3.5
    - python: 3.4
    - python: 2.7
    - python: pypy3
    - python: pypy
    - name: "Python: 3.7"
      os: osx
      osx_image: xcode11.2  # Python 3.7.4 running on macOS 10.14.4
      language: shell       # 'language: python' is an error on Travis CI macOS
    - name: "Python: 3.8"
      os: windows           # Windows 10.0.17134 N/A Build 17134
      language: shell       # 'language: python' is an error on Travis CI Windows
      before_install:
        - choco install python --version 3.8.2
        - python -m pip install --upgrade pip
      env: PATH=/c/Python38:/c/Python38/Scripts:$PATH

install: python -m pip install . pytest
script: python -m pytest