The semantics of PyList_Check() and PyDict_Check() changed at 2.2, along

with most other concrete object checks, but the docs weren't brought into
line.

PyList_CheckExact() was added at 2.2 but never documented.

backport candidate.

Include/dictobject.h

@@ -87,6 +87,7 @@ struct _dictobject {
 PyAPI_DATA(PyTypeObject) PyDict_Type;
 
 #define PyDict_Check(op) PyObject_TypeCheck(op, &PyDict_Type)
+#define PyList_CheckExact(op) ((op)->ob_type == &PyDict_Type)
 
 PyAPI_FUNC(PyObject *) PyDict_New(void);
 PyAPI_FUNC(PyObject *) PyDict_GetItem(PyObject *mp, PyObject *key);