PyTypeObject中PyMethodDef结构体和PyMemberDef结构体

1.PyMethodDef结构体源码（Include/methodobject.h）：

typedef PyObject *(*PyCFunction)(PyObject *, PyObject *);

struct PyMethodDef {
    const char  *ml_name;   /* The name of the built-in function/method */
    PyCFunction ml_meth;    /* The C function that implements it */
    int         ml_flags;   /* Combination of METH_xxx flags, which mostly
                               describe the args expected by the C func */
    const char  *ml_doc;    /* The __doc__ attribute, or NULL */
};
typedef struct PyMethodDef PyMethodDef;

 2.PyMemberDef结构体源码（Include/structmember.h）：

/* An array of PyMemberDef structures defines the name, type and offset
   of selected members of a C structure.  These can be read by
   PyMember_GetOne() and set by PyMember_SetOne() (except if their READONLY
   flag is set).  The array must be terminated with an entry whose name
   pointer is NULL. */

typedef struct PyMemberDef {
    char *name;
    int type;
    Py_ssize_t offset;
    int flags;
    char *doc;
} PyMemberDef;