@@ -99,23 +99,6 @@ \section{The Basics

0, /*tp_as_buffer*/

Py_TPFLAGS_DEFAULT, /*tp_flags*/

"Noddy objects", /* tp_doc */

0, /* tp_traverse */

0, /* tp_clear */

0, /* tp_richcompare */

0, /* tp_weaklistoffset */

0, /* tp_iter */

0, /* tp_iternext */

0, /* tp_methods */

0, /* tp_members */

0, /* tp_getset */

0, /* tp_base */

0, /* tp_dict */

0, /* tp_descr_get */

0, /* tp_descr_set */

0, /* tp_dictoffset */

0, /* tp_init */

0, /* tp_alloc */

PyType_GenericNew, /* tp_new */

};

\end{verbatim}

@@ -209,10 +192,17 @@ \section{The Basics

objects. To enable object creation, we have to provide a

\member{tp_new} implementation. In this case, we can just use the

default implementation provided by the API function

\cfunction{PyType_GenericNew}.

\cfunction{PyType_GenericNew}. We'd like to just assign this to the

\member{tp_new} slot, but we can't, for portability sake, On some

platforms or compilers, we can't statically initialize a structure

member with a function defined in another C module, so, instead, we'll

assign the \member{tp_new} slot in the module initialization function

just before calling \cfunction{PyType_Ready()}:

\begin{verbatim}

PyType_GenericNew, /* tp_new */

noddy_NoddyType.tp_new = PyType_GenericNew;

if (PyType_Ready(&noddy_NoddyType) < 0)

return;

\end{verbatim}

All the other type methods are \NULL, so we'll go over them later

@@ -397,7 +387,7 @@ \subsection{Adding data and methods to the Basic example}

We provide an initialization function:

\begin{verbatim}

static PyObject *

static int

Noddy_init(Noddy *self, PyObject *args, PyObject *kwds)

{

PyObject *first=NULL, *last=NULL;

@@ -407,7 +397,7 @@ \subsection{Adding data and methods to the Basic example}

if (! PyArg_ParseTupleAndKeywords(args, kwds, "|OOi", kwlist,

&first, &last,

&self->number))

return NULL;

return -1;

if (first) {

Py_XDECREF(self->first);

@@ -421,8 +411,7 @@ \subsection{Adding data and methods to the Basic example}

self->last = last;

}

Py_INCREF(Py_None);

return Py_None;

return 0;

}

\end{verbatim}