How to instantiate a custom Python class inside a C extension?
Musbur
musbur at posteo.org
Wed Apr 1 13:24:11 EDT 2020
Am 01.04.2020 15:01 schrieb Rhodri James:
> I believe you do it in C as you would in Python: you call the Series
> class!
>
> pyseries = PyObject_CallObject((PyObject *)&series_type, NULL);
Well, that dumps core just as everything else I tried.
What does work, however, is calling PyType_Ready first:
PyType_Ready(&series_type);
pyseries = PyObject_New(Series, &series_type);
PyObject_Init((PyObject *)pyseries, &series_type);o
I don't understand, though, why I have to do that and when. Didn't that
already happen when the module was imported? Do I need to do it whenever
I create a new instance in C?
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