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| -rw-r--r-- | Doc/c-api/typeobj.rst | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Doc/c-api/typeobj.rst b/Doc/c-api/typeobj.rst index e66ab01..1105b94 100644 --- a/Doc/c-api/typeobj.rst +++ b/Doc/c-api/typeobj.rst @@ -1034,7 +1034,8 @@ and :c:data:`PyType_Type` effectively act as defaults.) the type, and the type object is INCREF'ed when a new instance is created, and DECREF'ed when an instance is destroyed (this does not apply to instances of subtypes; only the type referenced by the instance's ob_type gets INCREF'ed or - DECREF'ed). + DECREF'ed). Heap types should also :ref:`support garbage collection <supporting-cycle-detection>` + as they can form a reference cycle with their own module object. **Inheritance:** |