zopefoundation / zope.interface / 42127430586

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Pull #397

github

Fix reference leaks when module initialization fails

``_zic_module_exec`` took an extra reference on each type and on
``adapter_hooks`` for ``PyModule_AddObject`` to steal.  If ``exec``
failed before reaching it, or ``PyModule_AddObject`` itself failed,
that reference was never released.  Use ``PyModule_AddObjectRef``,
which does not steal, and drop the extra ``Py_INCREF`` calls.

Part of #363.

Assisted-by: Claude Opus 5.5

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