language: python
python:
  - "2.7"
  - "3.3"
  - "3.4"
  - "3.5"
install: "pip install -r requirements-travis.txt"
script: nosetests

language: python
python:
  - "2.7"
  - "3.4"
  - "3.5"
  - "3.6"
install: "pip install -r requirements-travis.txt"
script: nosetests

Remove 3.3 and test 3.6.
Remove 3.3 and test 3.6.
