language: python
python:
    - 3.4
install: pip install .
script:
    - cd tests
    - ./test_runner.py

language: python
python:
    - 3.4
install: pip install .
script:
    - cd tests
    - python3 test_runner.py

Fix Travis test script 'permission denied'
Fix Travis test script 'permission denied'

Presumably, permission is denied because the executable bit is not set
for test_runner.py.

    $ ./test_runner.py

    /home/travis/build.sh: line 41: ./test_runner.py: Permission denied

    The command "./test_runner.py" exited with 126.
