1 #include <Python.h> 2 3 typedef struct { 4 PyListObject list; 5 int state; 6 } Shoddy; 7 8 9 static PyObject * 10 Shoddy_increment(Shoddy *self, PyObject *unused) 11 { 12 self->state++; 13 return PyInt_FromLong(self->state); 14 } 15 16 17 static PyMethodDef Shoddy_methods[] = { 18 {"increment", (PyCFunction)Shoddy_increment, METH_NOARGS, 19 PyDoc_STR("increment state counter")}, 20 {NULL, NULL}, 21 }; 22 23 static int 24 Shoddy_init(Shoddy *self, PyObject *args, PyObject *kwds) 25 { 26 if (PyList_Type.tp_init((PyObject *)self, args, kwds) < 0) 27 return -1; 28 self->state = 0; 29 return 0; 30 } 31 32 33 static PyTypeObject ShoddyType = { 34 PyObject_HEAD_INIT(NULL) 35 0, /* ob_size */ 36 "shoddy.Shoddy", /* tp_name */ 37 sizeof(Shoddy), /* tp_basicsize */ 38 0, /* tp_itemsize */ 39 0, /* tp_dealloc */ 40 0, /* tp_print */ 41 0, /* tp_getattr */ 42 0, /* tp_setattr */ 43 0, /* tp_compare */ 44 0, /* tp_repr */ 45 0, /* tp_as_number */ 46 0, /* tp_as_sequence */ 47 0, /* tp_as_mapping */ 48 0, /* tp_hash */ 49 0, /* tp_call */ 50 0, /* tp_str */ 51 0, /* tp_getattro */ 52 0, /* tp_setattro */ 53 0, /* tp_as_buffer */ 54 Py_TPFLAGS_DEFAULT | 55 Py_TPFLAGS_BASETYPE, /* tp_flags */ 56 0, /* tp_doc */ 57 0, /* tp_traverse */ 58 0, /* tp_clear */ 59 0, /* tp_richcompare */ 60 0, /* tp_weaklistoffset */ 61 0, /* tp_iter */ 62 0, /* tp_iternext */ 63 Shoddy_methods, /* tp_methods */ 64 0, /* tp_members */ 65 0, /* tp_getset */ 66 0, /* tp_base */ 67 0, /* tp_dict */ 68 0, /* tp_descr_get */ 69 0, /* tp_descr_set */ 70 0, /* tp_dictoffset */ 71 (initproc)Shoddy_init, /* tp_init */ 72 0, /* tp_alloc */ 73 0, /* tp_new */ 74 }; 75 76 PyMODINIT_FUNC 77 initshoddy(void) 78 { 79 PyObject *m; 80 81 ShoddyType.tp_base = &PyList_Type; 82 if (PyType_Ready(&ShoddyType) < 0) 83 return; 84 85 m = Py_InitModule3("shoddy", NULL, "Shoddy module"); 86 if (m == NULL) 87 return; 88 89 Py_INCREF(&ShoddyType); 90 PyModule_AddObject(m, "Shoddy", (PyObject *) &ShoddyType); 91 } 92
