List（串列）物件

PyListObject

This subtype of PyObject represents a Python list object.

PyTypeObject PyList_Type

This instance of PyTypeObject represents the Python list type. This is the same object as list in the Python layer.

int PyList_Check(PyObject *p)

Return true if p is a list object or an instance of a subtype of the list type.

int PyList_CheckExact(PyObject *p)

Return true if p is a list object, but not an instance of a subtype of the list type.

PyObject* PyList_New(Py_ssize_t len)

Return value: New reference.

成功时返回一个长度为 len 的新列表，失败时返回 NULL。

備註

If len is greater than zero, the returned list object's items are set to NULL. Thus you cannot use abstract API functions such as PySequence_SetItem() or expose the object to Python code before setting all items to a real object with PyList_SetItem().

Py_ssize_t PyList_Size(PyObject *list)

Return the length of the list object in list; this is equivalent to len(list) on a list object.

Py_ssize_t PyList_GET_SIZE(PyObject *list)

Macro form of PyList_Size() without error checking.

PyObject* PyList_GetItem(PyObject *list, Py_ssize_t index)

Return value: Borrowed reference.

返回 list 所指向列表中 index 位置上的对象。 位置值必须为非负数；不支持从列表末尾进行索引。 如果 index 超出边界 (<0 or >=len(list))，则返回 NULL 并设置 IndexError 异常。

PyObject* PyList_GET_ITEM(PyObject *list, Py_ssize_t i)

Return value: Borrowed reference.

Macro form of PyList_GetItem() without error checking.

int PyList_SetItem(PyObject *list, Py_ssize_t index, PyObject *item)

将列表中索引为 index 的项设为 item。 成功时返回 0。 如果 index 超出范围则返回 -1 并设定 IndexError 异常。

備註

This function "steals" a reference to item and discards a reference to an item already in the list at the affected position.

void PyList_SET_ITEM(PyObject *list, Py_ssize_t i, PyObject *o)

Macro form of PyList_SetItem() without error checking. This is normally only used to fill in new lists where there is no previous content.

備註

This macro "steals" a reference to item, and, unlike PyList_SetItem(), does not discard a reference to any item that is being replaced; any reference in list at position i will be leaked.

int PyList_Insert(PyObject *list, Py_ssize_t index, PyObject *item)

Insert the item item into list list in front of index index. Return 0 if successful; return -1 and set an exception if unsuccessful. Analogous to list.insert(index, item).

int PyList_Append(PyObject *list, PyObject *item)

Append the object item at the end of list list. Return 0 if successful; return -1 and set an exception if unsuccessful. Analogous to list.append(item).

PyObject* PyList_GetSlice(PyObject *list, Py_ssize_t low, Py_ssize_t high)

Return value: New reference.

返回一个对象列表，包含 list 当中位于 low 和 high 之间 的对象。 如果不成功则返回 NULL 并设置异常。 相当于 list[low:high]。 不支持从列表末尾进行索引。

int PyList_SetSlice(PyObject *list, Py_ssize_t low, Py_ssize_t high, PyObject *itemlist)

将 list 当中 low 与 high 之间的切片设为 itemlist 的内容。 相当于 list[low:high] = itemlist。 itemlist 可以为 NULL，表示赋值为一个空列表（删除切片）。 成功时返回 0，失败时返回 -1。 这里不支持从列表末尾进行索引。

int PyList_Sort(PyObject *list)

Sort the items of list in place. Return 0 on success, -1 on failure. This is equivalent to list.sort().

int PyList_Reverse(PyObject *list)

Reverse the items of list in place. Return 0 on success, -1 on failure. This is the equivalent of list.reverse().

PyObject* PyList_AsTuple(PyObject *list)

Return value: New reference.

Return a new tuple object containing the contents of list; equivalent to tuple(list).

int PyList_ClearFreeList()

Clear the free list. Return the total number of freed items.

3.3 版新加入.