[libvirt] PATCH: Clear reference after closing connection object

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In the python bindings, if you call close() it will close the connection
and release the handle, but it doesn't clear the python reference to the
C object - self._o. So later in garbage colection __del__ runs and tries
to free the already free'd object

Daniel

diff -r a76dc8c27d72 python/generator.py
--- a/python/generator.py	Tue Mar 31 12:36:02 2009 +0100
+++ b/python/generator.py	Tue Mar 31 13:09:38 2009 +0100
@@ -1072,6 +1072,9 @@ def buildWrappers():
 		    n = n + 1
 		classes.write(")\n");
 
+                if name == "virConnectClose":
+                    classes.write("        self._o = None\n")
+
                 # For functions returning object types:
                 if ret[0] != "void":
 		    if classes_type.has_key(ret[0]):


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