@@ -78,7 +78,9 @@ inline PyObject *read_bool(ReaderT *reader)
         PyErr_SetString(PyExc_ValueError, "read_bool out of bounds");
         return NULL;
     }
-    return *reader->ptr++ ? Py_True : Py_False;
+    PyObject *value = *reader->ptr++ ? Py_True : Py_False;
+    Py_INCREF(value);
+    return value;
 }
 
 inline PyObject *read_bool_array(ReaderT *reader, int32_t count)
@@ -91,7 +93,9 @@ inline PyObject *read_bool_array(ReaderT *reader, int32_t count)
     PyObject *list = PyList_New(count);
     for (auto i = 0; i < count; i++)
     {
-        PyList_SET_ITEM(list, i, *reader->ptr++ ? Py_True : Py_False);
+        PyObject *value = *reader->ptr++ ? Py_True : Py_False;
+        Py_INCREF(value);
+        PyList_SET_ITEM(list, i, value);
     }
     return list;
 }
@@ -1201,9 +1205,9 @@ static PyTypeObject TypeTreeNodeType = []() -> PyTypeObject
 {
     PyTypeObject type = {
 #if PY_VERSION_HEX >= 0x03080000
-    PyVarObject_HEAD_INIT(NULL, 0)
+        PyVarObject_HEAD_INIT(NULL, 0)
 #else
-    PyObject_HEAD_INIT(NULL) 0
+        PyObject_HEAD_INIT(NULL) 0
 #endif
     };
     type.tp_name = "TypeTreeHelper.TypeTreeNode";
Original file line number	Diff line number	Diff line change
`@@ -78,7 +78,9 @@ inline PyObject read_bool(ReaderT reader)`
`78`	`78`	`PyErr_SetString(PyExc_ValueError, "read_bool out of bounds");`
`79`	`79`	`return NULL;`
`80`	`80`	`}`
`81`		`- return *reader->ptr++ ? Py_True : Py_False;`
	`81`	`+ PyObject value = reader->ptr++ ? Py_True : Py_False;`
	`82`	`+ Py_INCREF(value);`
	`83`	`+ return value;`
`82`	`84`	`}`
`83`	`85`
`84`	`86`	`inline PyObject read_bool_array(ReaderT reader, int32_t count)`
`@@ -91,7 +93,9 @@ inline PyObject read_bool_array(ReaderT reader, int32_t count)`
`91`	`93`	`PyObject *list = PyList_New(count);`
`92`	`94`	`for (auto i = 0; i < count; i++)`
`93`	`95`	`{`
`94`		`- PyList_SET_ITEM(list, i, *reader->ptr++ ? Py_True : Py_False);`
	`96`	`+ PyObject value = reader->ptr++ ? Py_True : Py_False;`
	`97`	`+ Py_INCREF(value);`
	`98`	`+ PyList_SET_ITEM(list, i, value);`
`95`	`99`	`}`
`96`	`100`	`return list;`
`97`	`101`	`}`
`@@ -1201,9 +1205,9 @@ static PyTypeObject TypeTreeNodeType = []() -> PyTypeObject`
`1201`	`1205`	`{`
`1202`	`1206`	`PyTypeObject type = {`
`1203`	`1207`	`#if PY_VERSION_HEX >= 0x03080000`
`1204`		`- PyVarObject_HEAD_INIT(NULL, 0)`
	`1208`	`+ PyVarObject_HEAD_INIT(NULL, 0)`
`1205`	`1209`	`#else`
`1206`		`- PyObject_HEAD_INIT(NULL) 0`
	`1210`	`+ PyObject_HEAD_INIT(NULL) 0`
`1207`	`1211`	`#endif`
`1208`	`1212`	`};`
`1209`	`1213`	`type.tp_name = "TypeTreeHelper.TypeTreeNode";`