Bug Fixed

- Changes in way that garbage collection treats dictionaries in Python
  2.7 broke the object/connection cache implementation.
  (https://bugs.launchpad.net/zodb/+bug/641481)

src/CHANGES.txt

@@ -2,6 +2,19 @@
  Change History
 ================
 
+3.9.7 (2010-09-28)
+==================
+
+Bugs Fixed
+----------
+
+- Changes in way that garbage collection treats dictionaries in Python
+  2.7 broke the object/connection cache implementation.
+  (https://bugs.launchpad.net/zodb/+bug/641481)
+
+  Python 2.7 wasn't officially supported, but we were releasing
+  binaries for it, so ...
+
 3.9.6 (2010-09-21)
 ==================
 

src/persistent/cPickleCache.c

@@ -992,6 +992,7 @@ cc_add_item(ccobject *self, PyObject *key, PyObject *v)
     {
       if (PyDict_SetItem(self->data, key, v) < 0)
         return -1;
+      PyObject_GC_UnTrack((void *)self->data);
       self->klass_count++;
       return 0;
     }
@@ -1017,6 +1018,7 @@ cc_add_item(ccobject *self, PyObject *key, PyObject *v)
   if (PyDict_SetItem(self->data, key, v) < 0)
     return -1;
   /* the dict should have a borrowed reference */
+  PyObject_GC_UnTrack((void *)self->data);
   Py_DECREF(v);
 
   p = (cPersistentObject *)v;