The tests of this package are located under the test (singular) directory. The project's setup.py, however contains the line:

  test_suite="tests",

using plural form.

This makes the command: python setup.py test fail.

The fix could be either:

1. Rename the directory test → tests
2. Fix the names in setup.py (The packages directive also uses the plural form)

I'm happy to submit a PR with the preferred solution. My personal preference would be 1).