如何获取PyObject的引用计数？ [英] How to get reference count of a PyObject?

问题描述

如何从C ++获取 PyObject 的引用计数？

How to get reference count of a PyObject from C++?

有一些函数 Py_INCREF 和 Py_DECREF 减少它，但我还没有找到返回对象的引用计数的任何函数。

There are functions Py_INCREF and Py_DECREF which increase/decrease it, but I haven't found any function which return object's reference count.

我需要它为调试目的。

推荐答案

每个对象的引用计数都存储在 PyObject https://hg.python.org/cpython/file/37d896c3604a/Include/object.h#l107> ob_refcnt 。

The reference count of each and every object is stored in the PyObject itself, in a variable called ob_refcnt. You can directly access that.

typedef struct _object {
    _PyObject_HEAD_EXTRA
    Py_ssize_t ob_refcnt;          # Reference count
    struct _typeobject *ob_type;
} PyObject;

或者，您可以使用 Py_REFCNT 宏。

Alternatively, you can use the Py_REFCNT Macro.

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