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i have a c++ class A , it will callback a python function foo(A) , and i want to send a A* pointer to this function , how can i do it ? my code is similar as follow :

PyObject* arg = (PyObject*)(pA);
PyTuple_SetItem(args, 0, arg);
PyObject* pRet = PyObject_CallObject(foo, args);

but it always crash , seems wrap arg from A* is not correct , can anybody help me ?

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  • You can’t just pretend your A object is a Python object! The cast should be a red flag. Moreover, what do you want the Python function to do with the pointer? Commented Sep 26, 2019 at 12:54
  • function foo is a python function , i callback it from C++ , in foo , the pointer will call some member function , such as A::do_something() Commented Sep 27, 2019 at 2:58
  • how to wrap the pointer ? Commented Sep 27, 2019 at 2:59
  • Possible duplicate of Passing a C pointer around with the Python/C API Commented Sep 27, 2019 at 3:01
  • i already checked that question before , but it can't run correctly Commented Sep 27, 2019 at 3:07
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