I though I'd give it a go with newest pypy release, and a couple of unit tests fail.

I've traced it down to the expectation that objects will disappear from weakref.WeakKeyDictionary.

In some cases, this is a user-facing thing, we issue a warning for "unused" resources, by virtue of them missing from the weak container when we expect the user code to keep the reference around.

Is there a good idiom or some way to support this behaviour with pypy?

Thanks,

Dima Tisnek