bpo-31443: Formulate the type slot initialization rules in terms of C… · python/cpython@ca72589 (original) (raw)

`@@ -177,16 +177,9 @@ the module. We'll expand this example later to have more interesting behavior.

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`` For now, all we want to be able to do is to create new :class:Noddy objects.

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`` To enable object creation, we have to provide a :c:member:~PyTypeObject.tp_new implementation.

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`In this case, we can just use the default implementation provided by the API

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`` -

function :c:func:PyType_GenericNew. We'd like to just assign this to the

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`` -

:c:member:~PyTypeObject.tp_new slot, but we can't, for portability sake, On some platforms or

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compilers, we can't statically initialize a structure member with a function

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`` -

defined in another C module, so, instead, we'll assign the :c:member:~PyTypeObject.tp_new slot

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in the module initialization function just before calling

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`` -

:c:func:PyType_Ready::

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-

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noddy_NoddyType.tp_new = PyType_GenericNew;

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if (PyType_Ready(&noddy_NoddyType) < 0)

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return;

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`` +

function :c:func:PyType_GenericNew. ::

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+

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PyType_GenericNew, /* tp_new */

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`All the other type methods are NULL, so we'll go over them later --- that's

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`for a later section!