102     if (o == Py_None) {  in sys_displayhook()
103         Py_INCREF(Py_None);  in sys_displayhook()
104         return Py_None;  in sys_displayhook()
106     if (PyObject_SetAttrString(builtins, "_", Py_None) != 0)  in sys_displayhook()
122     Py_INCREF(Py_None);  in sys_displayhook()
123     return Py_None;  in sys_displayhook()
139     Py_INCREF(Py_None);  in sys_excepthook()
140     return Py_None;  in sys_excepthook()
156         tstate->exc_type != NULL ? tstate->exc_type : Py_None,  in sys_exc_info()
157         tstate->exc_value != NULL ? tstate->exc_value : Py_None,  in sys_exc_info()
159             tstate->exc_traceback : Py_None);  in sys_exc_info()
190     PySys_SetObject("exc_type", Py_None);  in sys_exc_clear()
191     PySys_SetObject("exc_value", Py_None);  in sys_exc_clear()
192     PySys_SetObject("exc_traceback", Py_None);  in sys_exc_clear()
193     Py_INCREF(Py_None);  in sys_exc_clear()
194     return Py_None;  in sys_exc_clear()
250     Py_INCREF(Py_None);  in sys_setdefaultencoding()
251     return Py_None;  in sys_setdefaultencoding()
265     Py_INCREF(Py_None);  in sys_getfilesystemencoding()
266     return Py_None;  in sys_getfilesystemencoding()
317         arg = Py_None;  in call_trampoline()
343         arg = Py_None;  in profile_trampoline()
373     if (result != Py_None) {  in trace_trampoline()
390     if (args == Py_None)  in sys_settrace()
394     Py_INCREF(Py_None);  in sys_settrace()
395     return Py_None;  in sys_settrace()
412         temp = Py_None;  in sys_gettrace()
429     if (args == Py_None)  in sys_setprofile()
433     Py_INCREF(Py_None);  in sys_setprofile()
434     return Py_None;  in sys_setprofile()
451         temp = Py_None;  in sys_getprofile()
469     Py_INCREF(Py_None);  in sys_setcheckinterval()
470     return Py_None;  in sys_setcheckinterval()
503     Py_INCREF(Py_None);  in sys_settscdump()
504     return Py_None;  in sys_settscdump()
529     Py_INCREF(Py_None);  in sys_setrecursionlimit()
530     return Py_None;  in sys_setrecursionlimit()
638     Py_INCREF(Py_None);  in sys_setdlopenflags()
639     return Py_None;  in sys_setdlopenflags()
682     Py_INCREF(Py_None);  in sys_mdebug()
683     return Py_None;  in sys_mdebug()