hylang/hy — pull request #243 by paultag (2013-07-13 15:54:40+00:00)
Title: Fix yielding to not suck (#151)

This adds a class to avoid returning when we have a Yieldable
expression contained in the body of the function. This breaks Python
2.x, and ought to break Python 3.x, but doesn't.

We need this fo' context managers, etc.