bpo-42694: Prevent creating _curses_panel.panel (GH-23948)

bpo-42694: Prevent creating _curses_panel.panel (GH-23948) · python/cpython@993e88c

Original file line number	Diff line number	Diff line change
`@@ -654,6 +654,7 @@ _curses_panel_exec(PyObject *mod)`
`654`	`654`	`if (state->PyCursesPanel_Type == NULL) {`
`655`	`655`	`return -1;`
`656`	`656`	`}`
	`657`	`+ ((PyTypeObject *)state->PyCursesPanel_Type)->tp_new = NULL;`
`657`	`658`
`658`	`659`	`if (PyModule_AddType(mod, state->PyCursesPanel_Type) < 0) {`
`659`	`660`	`return -1;`
`@@ -715,4 +716,4 @@ PyMODINIT_FUNC`
`715`	`716`	`PyInit__curses_panel(void)`
`716`	`717`	`{`
`717`	`718`	`return PyModuleDef_Init(&_curses_panelmodule);`
`718`		`-}`
	`719`	`+}`