rackerlabs/otter — pull request #802 by manishtomar (2014-12-03 04:18:50+00:00)
Title: Wait decorator to disallow re-entrantcy

Implemented `wait` decorator that waits for result when the function is called again without first result being available. Wrapping `_auth_me` to get auth token only once. Using it in `CachingAuthenticator` to extract out the waiting pattern.