Py_Finalize(): Reverted recent changes that tried to move the

PYTHONDUMPREFS output after most teardown.  Attempts to use
PYTHONDUMPREFS with the Zope3 test suite died with Py_FatalError(),
since _Py_PrintReferences() can end up executing arbitrary Python code
(for objects that override __repr__), and that requires an intact
interpreter.

1 files changed, 11 insertions, 8 deletions

diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index fbf4283..84c16b5 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -270,6 +270,17 @@ Py_Finalize(void)
 	fprintf(stderr, "[%ld refs]\n", _Py_RefTotal);
 #endif
 
+#ifdef Py_TRACE_REFS
+	/* Display all objects still alive -- this can invoke arbitrary
+	 * __repr__ overrides, so requires a mostly-intact interpreter.
+	 * Alas, a lot of stuff may still be alive now that will be cleaned
+	 * up later.
+	 */
+	if (Py_GETENV("PYTHONDUMPREFS")) {
+		_Py_PrintReferences(stderr);
+	}
+#endif /* Py_TRACE_REFS */
+
 	/* Now we decref the exception classes.  After this point nothing
 	   can raise an exception.  That's okay, because each Fini() method
 	   below has been checked to make sure no exceptions are ever
@@ -306,14 +317,6 @@ Py_Finalize(void)
 
 	PyGrammar_RemoveAccelerators(&_PyParser_Grammar);
 
-#ifdef Py_TRACE_REFS
-	/* Dump references -- this may implicitly need the thread state,
-	   so this is the last possible place where we can do this. */
-	if (Py_GETENV("PYTHONDUMPREFS")) {
-		_Py_PrintReferences(stderr);
-	}
-#endif /* Py_TRACE_REFS */
-
 #ifdef PYMALLOC_DEBUG
 	if (Py_GETENV("PYTHONMALLOCSTATS"))
 		_PyObject_DebugMallocStats();