machine:
  pre:
    - sudo add-apt-repository -y ppa:fkrull/deadsnakes
    - sudo apt-get update
    - sudo apt-get install libxml2-dev libxslt-dev python3.5 python3.5-dev
    - git -C .pyenv/ pull

test:
  override:
    - tox

test:
  override:
    - pyenv global 2.7.11 3.5.1
    - tox

Test using Circle's Ubuntu 14.04 image
Test using Circle's Ubuntu 14.04 image