This reverts commit 3d2617983b.
The change was not quite right because the method six provides needs to
have `self` be passed in as well. See the docs here:
https://six.readthedocs.io/#unittest-assertions
Reverting for now and we can fix it in smaller chunks later.
Status: Active Development Responsibilities ================ The courseware djangoapp is responsible for presenting course content to learners. Glossary ======== More Documentation ================== `Architectural Decision Records <https://github.com/edx/edx-platform/tree/master/lms/djangoapps/courseware/docs/decisions>`_