diff --git a/src/if_py_both.h b/src/if_py_both.h
index 497db86..e2f4857 100644
--- a/src/if_py_both.h
+++ b/src/if_py_both.h
@@ -465,20 +465,41 @@
 }
 
     static PyObject *
-OutputFlush(PyObject *self UNUSED)
+AlwaysNone(PyObject *self UNUSED)
 {
     /* do nothing */
     Py_INCREF(Py_None);
     return Py_None;
 }
 
+    static PyObject *
+AlwaysFalse(PyObject *self UNUSED)
+{
+    /* do nothing */
+    Py_INCREF(Py_False);
+    return Py_False;
+}
+
+    static PyObject *
+AlwaysTrue(PyObject *self UNUSED)
+{
+    /* do nothing */
+    Py_INCREF(Py_True);
+    return Py_True;
+}
+
 /***************/
 
 static struct PyMethodDef OutputMethods[] = {
     /* name,	    function,				calling,	doc */
     {"write",	    (PyCFunction)OutputWrite,		METH_O,		""},
     {"writelines",  (PyCFunction)OutputWritelines,	METH_O,		""},
-    {"flush",	    (PyCFunction)OutputFlush,		METH_NOARGS,	""},
+    {"flush",	    (PyCFunction)AlwaysNone,		METH_NOARGS,	""},
+    {"close",	    (PyCFunction)AlwaysNone,		METH_NOARGS,	""},
+    {"isatty",	    (PyCFunction)AlwaysFalse,		METH_NOARGS,	""},
+    {"readable",    (PyCFunction)AlwaysFalse,		METH_NOARGS,	""},
+    {"seekable",    (PyCFunction)AlwaysFalse,		METH_NOARGS,	""},
+    {"writable",    (PyCFunction)AlwaysTrue,		METH_NOARGS,	""},
     {"__dir__",	    (PyCFunction)OutputDir,		METH_NOARGS,	""},
     { NULL,	    NULL,				0,		NULL}
 };