symbian-qemu-0.9.1-12/python-2.6.1/Doc/c-api/list.rst
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Doc/c-api/list.rst	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,147 @@
+.. highlightlang:: c
+
+.. _listobjects:
+
+List Objects
+------------
+
+.. index:: object: list
+
+
+.. ctype:: PyListObject
+
+   This subtype of :ctype:`PyObject` represents a Python list object.
+
+
+.. cvar:: PyTypeObject PyList_Type
+
+   .. index:: single: ListType (in module types)
+
+   This instance of :ctype:`PyTypeObject` represents the Python list type.  This is
+   the same object as ``list`` and ``types.ListType`` in the Python layer.
+
+
+.. cfunction:: int PyList_Check(PyObject *p)
+
+   Return true if *p* is a list object or an instance of a subtype of the list
+   type.
+
+   .. versionchanged:: 2.2
+      Allowed subtypes to be accepted.
+
+
+.. cfunction:: int PyList_CheckExact(PyObject *p)
+
+   Return true if *p* is a list object, but not an instance of a subtype of the
+   list type.
+
+   .. versionadded:: 2.2
+
+
+.. cfunction:: PyObject* PyList_New(Py_ssize_t len)
+
+   Return a new list of length *len* on success, or *NULL* on failure.
+
+   .. note::
+
+      If *length* is greater than zero, the returned list object's items are set to
+      ``NULL``.  Thus you cannot use abstract API functions such as
+      :cfunc:`PySequence_SetItem`  or expose the object to Python code before setting
+      all items to a real object with :cfunc:`PyList_SetItem`.
+
+
+.. cfunction:: Py_ssize_t PyList_Size(PyObject *list)
+
+   .. index:: builtin: len
+
+   Return the length of the list object in *list*; this is equivalent to
+   ``len(list)`` on a list object.
+
+
+.. cfunction:: Py_ssize_t PyList_GET_SIZE(PyObject *list)
+
+   Macro form of :cfunc:`PyList_Size` without error checking.
+
+
+.. cfunction:: PyObject* PyList_GetItem(PyObject *list, Py_ssize_t index)
+
+   Return the object at position *pos* in the list pointed to by *p*.  The position
+   must be positive, indexing from the end of the list is not supported.  If *pos*
+   is out of bounds, return *NULL* and set an :exc:`IndexError` exception.
+
+
+.. cfunction:: PyObject* PyList_GET_ITEM(PyObject *list, Py_ssize_t i)
+
+   Macro form of :cfunc:`PyList_GetItem` without error checking.
+
+
+.. cfunction:: int PyList_SetItem(PyObject *list, Py_ssize_t index, PyObject *item)
+
+   Set the item at index *index* in list to *item*.  Return ``0`` on success or
+   ``-1`` on failure.
+
+   .. note::
+
+      This function "steals" a reference to *item* and discards a reference to an item
+      already in the list at the affected position.
+
+
+.. cfunction:: void PyList_SET_ITEM(PyObject *list, Py_ssize_t i, PyObject *o)
+
+   Macro form of :cfunc:`PyList_SetItem` without error checking. This is normally
+   only used to fill in new lists where there is no previous content.
+
+   .. note::
+
+      This function "steals" a reference to *item*, and, unlike
+      :cfunc:`PyList_SetItem`, does *not* discard a reference to any item that it
+      being replaced; any reference in *list* at position *i* will be leaked.
+
+
+.. cfunction:: 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)``.
+
+
+.. cfunction:: 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)``.
+
+
+.. cfunction:: PyObject* PyList_GetSlice(PyObject *list, Py_ssize_t low, Py_ssize_t high)
+
+   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]``.
+
+
+.. cfunction:: int PyList_SetSlice(PyObject *list, Py_ssize_t low, Py_ssize_t high, PyObject *itemlist)
+
+   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.
+
+
+.. cfunction:: 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()``.
+
+
+.. cfunction:: 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()``.
+
+
+.. cfunction:: PyObject* PyList_AsTuple(PyObject *list)
+
+   .. index:: builtin: tuple
+
+   Return a new tuple object containing the contents of *list*; equivalent to
+   ``tuple(list)``.