@@ -383,6 +383,7 @@ PyCurses_ConvertToString(PyCursesWindowObject *win, PyObject *obj,
             return 0;
         /* check for embedded null bytes */
         if (PyBytes_AsStringAndSize(*bytes, &str, NULL) < 0) {
+            Py_CLEAR(*bytes);
             return 0;
         }
         return 1;
Original file line number	Diff line number	Diff line change
`@@ -383,6 +383,7 @@ PyCurses_ConvertToString(PyCursesWindowObject win, PyObject obj,`
`383`	`383`	`return 0;`
`384`	`384`	`/* check for embedded null bytes */`
`385`	`385`	`if (PyBytes_AsStringAndSize(*bytes, &str, NULL) < 0) {`
	`386`	`+ Py_CLEAR(*bytes);`
`386`	`387`	`return 0;`
`387`	`388`	`}`
`388`	`389`	`return 1;`