language: python

# Runs jobs on container based infrastructure
sudo: false

# Saves pip downloads/wheels between builds
cache:
  directories:
    - $HOME/.cache/pip

addons:
    apt:
        packages:
            - libudev-dev
            - libusb-1.0-0-dev

python:
    - "2.7"
    - "3.4"
    - "3.5"

before_install:
   - pip install setuptools --upgrade

install:
    # Optimisation: build requirements as wheels, which get cached by Travis
    - pip install "pip>=7.0" wheel

script:
    - python setup.py install