#define PyObject_VAR_HEAD PyVarObject ob_base;

...

typedef struct {

PyObject ob_base;

Py_ssize_t ob_size; /* Number of items in variable part */

} PyVarObject;

typedef struct {

PyObject_HEAD

/* Number of items in the dictionary */

Py_ssize_t ma_used;

/* Dictionary version: globally unique, value change each time

the dictionary is modified */

uint64_t ma_version_tag;

PyDictKeysObject *ma_keys;

/* If ma_values is NULL, the table is "combined": keys and values

are stored in ma_keys.

If ma_values is not NULL, the table is splitted:

keys are stored in ma_keys and values are stored in ma_values */

PyObject **ma_values;

} PyDictObject;

PyTypeObject PyDict_Type = {

PyVarObject_HEAD_INIT(&PyType_Type, 0)

"dict",

sizeof(PyDictObject),

0,

(destructor)dict_dealloc, /* tp_dealloc */

0, /* tp_vectorcall_offset */

0, /* tp_getattr */

0, /* tp_setattr */

0, /* tp_as_async */

(reprfunc)dict_repr, /* tp_repr */

&dict_as_number, /* tp_as_number */

&dict_as_sequence, /* tp_as_sequence */

&dict_as_mapping, /* tp_as_mapping */

PyObject_HashNotImplemented, /* tp_hash */

0, /* tp_call */

0, /* tp_str */

PyObject_GenericGetAttr, /* tp_getattro */

0, /* tp_setattro */

0, /* tp_as_buffer */

Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |

Py_TPFLAGS_BASETYPE | Py_TPFLAGS_DICT_SUBCLASS, /* tp_flags */

dictionary_doc, /* tp_doc */

dict_traverse, /* tp_traverse */

dict_tp_clear, /* tp_clear */

dict_richcompare, /* tp_richcompare */

0, /* tp_weaklistoffset */

(getiterfunc)dict_iter, /* tp_iter */

0, /* tp_iternext */

mapp_methods, /* tp_methods */

0, /* tp_members */

0, /* tp_getset */

0, /* tp_base */

0, /* tp_dict */

0, /* tp_descr_get */

0, /* tp_descr_set */

0, /* tp_dictoffset */

dict_init, /* tp_init */

PyType_GenericAlloc, /* tp_alloc */

dict_new, /* tp_new */

PyObject_GC_Del, /* tp_free */

.tp_vectorcall = dict_vectorcall,

};