Few days ago we've released a python3 compatible version of pytest-dbfixtures, a pytest plugin with fixtures and factories that can start fresh mysql, postgresql, elasticsearch, redis, rabbitmq and mongodb processes for Your tests - and clean their data afterwards. It also provides factories for fixtures if you'd need more processes of one kind or with different settings.
Unfortunately, if You've been using rabbitmq and/or mysql related fixtures, please check your tests carefuly, as these fixtures got most backward incompatible changes.
Since mysqlclient is a strightforward fork (keeps event the package name) - it's still possible to use MySQL-python package for python 2.
There are few others changes adjusting code for python3, but nothing more affecting backward compatibility.
We removed long deprecated mysqldb_session fixture.
We've renamed mysqldb to mysql for consistency with other client fixtures
mysqldb fixture itself has been deprecated.