StackRduino
diff --git a/‎py/objobject.c‎
Lines changed: 0 additions & 2 deletions b/‎py/objobject.c‎
Lines changed: 0 additions & 2 deletions
diff --git a/‎py/objtype.c‎
Lines changed: 2 additions & 1 deletion b/‎py/objtype.c‎
Lines changed: 2 additions & 1 deletion
@@ -11,8 +11,6 @@ typedef struct _mp_obj_object_t {
     mp_obj_base_t base;
 } mp_obj_object_t;
 
-const mp_obj_type_t mp_type_object;
-
 STATIC mp_obj_t object_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
     if (n_args != 0 || n_kw != 0) {
         nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, "object takes no arguments"));
 
@@ -532,7 +532,8 @@ STATIC mp_obj_t mp_obj_is_subclass(mp_obj_t object, mp_obj_t classinfo) {
     }
 
     for (uint i = 0; i < len; i++) {
-        if (mp_obj_is_subclass_fast(object, items[i])) {
+        // We explicitly check for 'object' here since no-one explicitly derives from it
+        if (items[i] == &mp_type_object || mp_obj_is_subclass_fast(object, items[i])) {
             return mp_const_true;
         }
     }
Original file line number	Diff line number	Diff line change
`@@ -532,7 +532,8 @@ STATIC mp_obj_t mp_obj_is_subclass(mp_obj_t object, mp_obj_t classinfo) {`
`532`	`532`	`}`
`533`	`533`
`534`	`534`	`for (uint i = 0; i < len; i++) {`
`535`		`- if (mp_obj_is_subclass_fast(object, items[i])) {`
	`535`	`+ // We explicitly check for 'object' here since no-one explicitly derives from it`
	`536`	`+ if (items[i] == &mp_type_object \|\| mp_obj_is_subclass_fast(object, items[i])) {`
`536`	`537`	`return mp_const_true;`
`537`	`538`	`}`
`538`	`539`	`}`