glance Style Commandments

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

glance Specific Commandments

[G316] Change assertTrue(isinstance(A, B)) by optimal assert like assertIsInstance(A, B)
[G317] Change assertEqual(type(A), B) by optimal assert like assertIsInstance(A, B)
[G318] Change assertEqual(A, None) or assertEqual(None, A) by optimal assert like assertIsNone(A)
[G319] Validate that debug level logs are not translated
[G320] For python 3 compatibility, use six.text_type() instead of unicode()
[G321] Validate that LOG messages, except debug ones, have translations
[G322] Validate that LOG.info messages use _LI.
[G323] Validate that LOG.exception messages use _LE.
[G324] Validate that LOG.error messages use _LE.
[G325] Validate that LOG.critical messages use _LC.
[G326] Validate that LOG.warning messages use _LW.
[G327] Prevent use of deprecated contextlib.nested
[G328] Must use a dict comprehension instead of a dict constructor with a sequence of key-value pairs