I also added test-requirments as test_requires on setup.py, which will make the test requeriments installed when running python setup.py test for me is the expected behaviour, but let me know if you have some remarks with it.

Thanks for the PR. It looks good. The new REQUIRES list, however, is a little different after this PR (It has all versions in it as well as commented license). Do we know that is fine? I think there were a guideline somewhere to not include versions in REQUIRES field.

@mbohlool for me the important part is that requirements and setup.py must contain the same package dependencies, so installing with requeriments and with setup.py produces the exact same behaviour. Having said that, if you do not want the versions in the setup.py I think we should not include on requirements.txt, but maybe this out of the scope of this PR. (I can create a new one if you prefer).

More information here: https://packaging.python.org/requirements/

I think we can go ahead with this PR.