Magnum Style Commandments

Step 1: Read the OpenStack Style Commandments http://docs.openstack.org/developer/hacking/
Step 2: Read on

Magnum Specific Commandments

[M301] policy.enforce_wsgi decorator must be the first decorator on a method.
[M318] Change assertEqual(A, None) or assertEqual(None, A) by optimal assert like assertIsNone(A)
[M322] Method's default argument shouldn't be mutable.
[M323] Change assertEqual(True, A) or assertEqual(False, A) by optimal assert like assertTrue(A) or assertFalse(A)
[M302] Change assertEqual(A is not None) by optimal assert like assertIsNotNone(A).
[M316] Change assertTrue(isinstance(A, B)) by optimal assert like assertIsInstance(A, B).
[M334] Change assertTrue/False(A in/not in B, message) to the more specific assertIn/NotIn(A, B, message)