.travis.yml

sudo: required

env:
  - distribution: ubuntu
    version: 16.04
    python: 3.5
  - distribution: ubuntu
    version: 16.04
    python: 2.7
  - distribution: ubuntu
    version: 14.04
    python: 3.4
  - distribution: ubuntu
    version: 14.04
    python: 2.7

services:
  - docker

before_install:
  - "docker pull ${distribution}:${version}"

script:
  - "docker build --file=tests/py${python}-${distribution}-${version}.dockerfile ."