language: python
sudo: false
cache: pip
install: pip install tox-travis
script: tox
matrix:
  fast_finish: true
  include:
    - python: 3.7
      dist: xenial
      sudo: true
    - python: "3.6"
    - python: "3.5"
    - python: "3.4"
    - python: "2.7"

language: python
sudo: false
cache: pip
install: pip install tox-travis
script: tox
matrix:
  fast_finish: true
  include:
    - python: "3.7"
    - python: "3.6"
    - python: "3.5"
    - python: "3.4"
    - python: "2.7"

Remove special case for Travis and Python 3.7.
Remove special case for Travis and Python 3.7.
