THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
Many (but not all) Python tests can be run in parallel. Such tests could be annotated and then executed with nose's parallel test plugin. This should speed up test runs dramatically. For stability reasons, some tests will still be required to be run in sequence (for example non-idempotent tests). We will have to identify all of these tests, erring on the side of caution, and mark them as tests that cannot be run in parallel.
...