Doc: add the missing ".tp_flags" in type definition (GH-12902)

(cherry picked from commit 662ebd2ab2047aeae9689ad254b39915c38069fd)

Co-authored-by: Wu Wei <weiwu@cacheme.net>

diff --git a/Doc/extending/newtypes_tutorial.rst b/Doc/extending/newtypes_tutorial.rst
index ac48637bbee9beae47085bdc6e9fc92f6cd09bd7..07c2ef718aedf6b424bb2bba11355e3513581100 100644 (file)
--- a/Doc/extending/newtypes_tutorial.rst
+++ b/Doc/extending/newtypes_tutorial.rst
@@ -92,6 +92,7 @@ The second bit is the definition of the type object. ::
        .tp_doc = "Custom objects",
        .tp_basicsize = sizeof(CustomObject),
        .tp_itemsize = 0,
+       .tp_flags = Py_TPFLAGS_DEFAULT,
        .tp_new = PyType_GenericNew,
    };