Fix Travis CI build error caused by previous commit #289
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tox
successfully runs, including unit tests and style checks (see CONTRIBUTING.md).What does this Pull Request accomplish?
Fixing Travis CI errors in my previously merged pull request.
Cosmetic changes to deal with two flake8 objections and a little update to .travis.yml config to avoid an error caused by setuptools (see pypa/setuptools#3293).
Why should this Pull Request be merged?
To fix build errors.
What testing has been done?
Tests run with no problem.