1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
.. 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`.
.. versionchanged:: 2.5
This function used an :ctype:`int` for *size*. This might require
changes in your code for properly supporting 64-bit systems.
.. 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.
.. versionchanged:: 2.5
This function returned an :ctype:`int`. This might require changes in
your code for properly supporting 64-bit systems.
.. 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.
.. versionchanged:: 2.5
This function used an :ctype:`int` for *index*. This might require
changes in your code for properly supporting 64-bit systems.
.. 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.
.. versionchanged:: 2.5
This function used an :ctype:`int` for *index*. This might require
changes in your code for properly supporting 64-bit systems.
.. 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)``.
.. versionchanged:: 2.5
This function used an :ctype:`int` for *index*. This might require
changes in your code for properly supporting 64-bit systems.
.. 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]``.
.. versionchanged:: 2.5
This function used an :ctype:`int` for *low* and *high*. This might
require changes in your code for properly supporting 64-bit systems.
.. 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.
.. versionchanged:: 2.5
This function used an :ctype:`int` for *low* and *high*. This might
require changes in your code for properly supporting 64-bit systems.
.. 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)``.
|
