time: Allow constructing a struct_time from another struct_time

Author: jepler

shared-bindings/time/__init__.c

@@ -83,12 +83,10 @@ mp_obj_t struct_time_make_new(const mp_obj_type_t *type, size_t n_args, const mp
     if (n_args != 1 || (kw_args != NULL && kw_args->used > 0)) {
         return namedtuple_make_new(type, n_args, args, kw_args);
     }
-    if (mp_obj_get_type(args[0])->getiter != mp_obj_tuple_getiter || ((mp_obj_tuple_t *)MP_OBJ_TO_PTR(args[0]))->len != 9) {
-        mp_raise_TypeError(translate("time.struct_time() takes a 9-sequence"));
-    }
-
-    mp_obj_tuple_t *tuple = MP_OBJ_TO_PTR(args[0]);
-    return namedtuple_make_new(type, 9, tuple->items, NULL);
+    size_t len;
+    mp_obj_t *items;
+    mp_obj_get_array(args[0], &len, &items);
+    return namedtuple_make_new(type, len, items, NULL);
 }
 
 //| class struct_time: