如何获取给定 C++ 指针的 PyBindGen PyObject？

Question

Given the PyObject created by PyBindGen , it's easy to get the pointer to the wrapped C++ object, just use the obj member in the struct:

typedef struct {
    PyObject_HEAD
    MyWrappedClass *obj;
    PyObject *inst_dict;
    PyBindGenWrapperFlags flags:8;
} PyMyWrappedClass;

However, let's say I have just MyWrappedClass* , and want to get the PyObject (if any, it might not exist) that wraps it. Is there any way to do this without maintaining my own dictionary of backpointers?

Answer 1

I would have added this as a comment if I had enough reputation as I'm not familiar with PyBindGen , but unless inst_dict is a dictionary of backpointers (as the name might suggest) I think you're out of luck (Unless you want to trawl through the Python heap to see if there are any instances of your class there).