处理C语言中的可迭代对象

下面是一个C扩展函数例子，演示了怎样处理可迭代对象中的元素： static PyObject *py_consume_iterable(PyObject *self, PyObject *args) { PyObject *obj; PyObject *iter; PyObject *item;

if (!PyArg_ParseTuple(args, "O", &obj)) { return NULL; } if ((iter = PyObject_GetIter(obj)) == NULL) { return NULL; } while ((item = PyIter_Next(iter)) != NULL) { /* Use item */ ... Py_DECREF(item); }

Py_DECREF(iter); return Py_BuildValue(""); }

下面是一个C扩展函数例子，演示了怎样处理可迭代对象中的元素：

static PyObject *py_consume_iterable(PyObject *self, PyObject *args) {
  PyObject *obj;
  PyObject *iter;
  PyObject *item;

  if (!PyArg_ParseTuple(args, "O", &obj)) {
    return NULL;
  }
  if ((iter = PyObject_GetIter(obj)) == NULL) {
    return NULL;
  }
  while ((item = PyIter_Next(iter)) != NULL) {
    /* Use item */
    ...
    Py_DECREF(item);
  }

  Py_DECREF(iter);
  return Py_BuildValue("");
}