SF Patch #1463867: Improved generator finalization to allow generators
that are suspended outside of any try/except/finally blocks to be
garbage collected even if they are part of a cycle. Generators that
suspend inside of an active try/except or try/finally block (including
those created by a ``with`` statement) are still not GC-able if they
are part of a cycle, however.
diff --git a/Modules/gcmodule.c b/Modules/gcmodule.c
index a8976b3..5bf95b9 100644
--- a/Modules/gcmodule.c
+++ b/Modules/gcmodule.c
@@ -413,8 +413,12 @@
assert(delstr != NULL);
return _PyInstance_Lookup(op, delstr) != NULL;
}
- else
+ else if (PyType_HasFeature(op->ob_type, Py_TPFLAGS_HEAPTYPE))
return op->ob_type->tp_del != NULL;
+ else if (PyGen_CheckExact(op))
+ return PyGen_NeedsFinalizing((PyGenObject *)op);
+ else
+ return 0;
}
/* Move the objects in unreachable with __del__ methods into `finalizers`.