We can control python version sensitive dependencies
in the single test-requirements.txt file so we can
drop the version-specific files. This should also make
the openstack-tox-py35 job start passing.
Change-Id: Ic3fa2c4417092e387ac5d177be75a22050a6f857
Brief summary of the modifications:
* Use six for compatibility with both Python 2 and 3;
* Replace UserDict.DictMixin with collections.MutableMapping;
* Fix relative imports;
* Use test-requirements.txt for requirements that are common to both Python 2
and 3, and test-requirements-py{2,3}.txt for version-specific requirements;
* Miscellaneous fixes.
* Use a specific test_db_py3.cfg file for Python 3, that only runs tests on
sqlite.
Thanks to Victor Stinner who co-wrote this patch.
Change-Id: Ia6dc536c39d274924c21fd5bb619e8e5721e04c4
Co-Authored-By: Victor Stinner <victor.stinner@enovance.com>
Matt Riedemann