Comment 2 for bug 153316

The same problem is also present in the BTrees module. It manifests itself in various ways, like slicing not working correctly.

I have attached a patch for the BTrees module. It needs the "#if PY_VERSION_HEX" like the other patch and typedefs for the other new types (lenfunc, ssizeargfunc, etc.) to work with older python versions. I felt that this code is better put in some common place instead of being copy & pasted into each file (but not sure where that is).

All tests pass with both patches applied.

Shane