# List Objects

type PyListObject

  This subtype of `PyObject` represents a Python list object.

PyTypeObject PyList_Type
  Часть Стабильный ABI.

  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. This function always succeeds.

int PyList_CheckExact(PyObject *p)

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

PyObject *PyList_New(Py_ssize_t len)
  Возвращаемое значение: Новая ссылка. Часть Стабильный ABI.

  Return a new list of length len on success, or `NULL` on failure.

  Примечание

  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()` or `PyList_SET_ITEM()`. The following APIs are safe APIs before the list is fully initialized: `PyList_SetItem()` and `PyList_SET_ITEM()`.

Py_ssize_t PyList_Size(PyObject *list)
  Часть Стабильный ABI.

  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)

  Similar to `PyList_Size()`, but without error checking.

PyObject *PyList_GetItemRef(PyObject *list, Py_ssize_t index)
  Возвращаемое значение: Новая ссылка. Часть Стабильный ABI начиная с версии 3.13.

  Return the object at position index in the list pointed to by list. The position must be non-negative; indexing from the end of the list is not supported. If index is out of bounds (`<0 or >=len(list)`), return `NULL` and set an `IndexError` exception.

  Добавлено в версии 3.13.

PyObject *PyList_GetItem(PyObject *list, Py_ssize_t index)
  Возвращаемое значение: Заимствованная ссылка. Часть Стабильный ABI.

  Like `PyList_GetItemRef()`, but returns a borrowed reference instead of a strong reference.

PyObject *PyList_GET_ITEM(PyObject *list, Py_ssize_t i)
  Возвращаемое значение: Заимствованная ссылка.

  Similar to `PyList_GetItem()`, but without error checking.

int PyList_SetItem(PyObject *list, Py_ssize_t index, PyObject *item)
  Часть Стабильный ABI.

  Set the item at index index in list to item. Return `0` on success. If index is out of bounds, return `-1` and set an `IndexError` exception.

  Примечание

  This function «steals» a reference to item, even on error. On success, it discards a reference to an item already in the list at the affected position (unless it was `NULL`).

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.

  Bounds checking is performed as an assertion if Python is built in debug mode or `with assertions`.

  Примечание

  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)
  Часть Стабильный ABI.

  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)
  Часть Стабильный ABI.

  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)
  Возвращаемое значение: Новая ссылка. Часть Стабильный ABI.

  Return a list of the objects in list containing the objects between low and high. Return `NULL` and set an exception if unsuccessful. Analogous to `list[low:high]`. Indexing from the end of the list is not supported.

int PyList_SetSlice(PyObject *list, Py_ssize_t low, Py_ssize_t high, PyObject *itemlist)
  Часть Стабильный ABI.

  Set the slice of list between low and high to the contents of itemlist. Analogous to `list[low:high] = itemlist`. The itemlist may be `NULL`, indicating the assignment of an empty list (slice deletion). Return `0` on success, `-1` on failure. Indexing from the end of the list is not supported.

int PyList_Extend(PyObject *list, PyObject *iterable)

  Extend list with the contents of iterable. This is the same as `PyList_SetSlice(list, PY_SSIZE_T_MAX, PY_SSIZE_T_MAX, iterable)` and analogous to `list.extend(iterable)` or `list += iterable`.

  Raise an exception and return `-1` if list is not a `list` object. Return 0 on success.

  Добавлено в версии 3.13.

int PyList_Clear(PyObject *list)

  Remove all items from list. This is the same as `PyList_SetSlice(list, 0, PY_SSIZE_T_MAX, NULL)` and analogous to `list.clear()` or `del list[:]`.

  Raise an exception and return `-1` if list is not a `list` object. Return 0 on success.

  Добавлено в версии 3.13.

int PyList_Sort(PyObject *list)
  Часть Стабильный ABI.

  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)
  Часть Стабильный ABI.

  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)
  Возвращаемое значение: Новая ссылка. Часть Стабильный ABI.

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