> I've looked at every traverse slot in the core, and there's no problem > with those. I don't think that's an accident -- the only purpose of > an object's tp_traverse is to invoke the visit callback on the > non-NULL PyObject* pointers the object has. So, e.g., there isn't an > incref or decref in any of 'em now; But what about the *visit function*? You need to take account of what it might do as well. And if it's ever used for something beside GC, it could do anything. Greg Ewing, Computer Science Dept, +--------------------------------------+ University of Canterbury, | A citizen of NewZealandCorp, a | Christchurch, New Zealand | wholly-owned subsidiary of USA Inc. | greg@cosc.canterbury.ac.nz +--------------------------------------+
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