sessions are in contrib, not part of the framework. Some of the testing stuff is "in-house". It's not even close to true that everyone's deployment is (or sho

sessions are in contrib, not part of the framework. Some of the testing stuff is "in-house". It's not even close to true that everyone's deployment is (or should be) very similar. It's a bit more arguable that everyone's testing should be similar. But forcing one way is not the Django way and one of the big reasons it is loved.