language: python
python:
    - '2.7'
    - '3.3'
    - '3.4'
    - '3.5'
install:
    - sudo apt-get install python3 python3-setuptools
    - pip install 3to2 future
    - pip install -e .[all]
script: ./testall.sh

language: python
python:
    - '2.7'
    - '3.3'
    - '3.4'
    - '3.5'
install:
    - pip install 3to2 future
    - pip install -e .[all]
script: ./testall.sh

Remove unnecessary install of python3
Remove unnecessary install of python3
