venmo/btnamespace — pull request #5 by simon-weber (2014-11-17 19:22:03+00:00)
Title: add strict_missing_exception

assign: @amygdalama

This allows client code to override NotFoundError for strict_missing.

It's not that great of an interface (I'd prefer to take a function that can return in place of the patch), but it'll solve our problem.