delta/cpython.git/Lib/_weakrefset.py, branch v2.7 Backport of weakref.WeakSet and tests from Python 3. 2010-03-29T20:04:23+00:00 Michael Foord fuzzyman@voidspace.org.uk 2010-03-29T20:04:23+00:00 f6f1f3d3e919776015cd59344a6a488982cb8d5f