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
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
.. highlight:: c
Frame Objects
-------------
.. c:type:: PyFrameObject
The C structure of the objects used to describe frame objects.
There are no public members in this structure.
.. versionchanged:: 3.11
The members of this structure were removed from the public C API.
Refer to the :ref:`What's New entry <pyframeobject-3.11-hiding>`
for details.
The :c:func:`PyEval_GetFrame` and :c:func:`PyThreadState_GetFrame` functions
can be used to get a frame object.
See also :ref:`Reflection <reflection>`.
.. c:var:: PyTypeObject PyFrame_Type
The type of frame objects.
It is the same object as :py:class:`types.FrameType` in the Python layer.
.. versionchanged:: 3.11
Previously, this type was only available after including
``<frameobject.h>``.
.. c:function:: int PyFrame_Check(PyObject *obj)
Return non-zero if *obj* is a frame object.
.. versionchanged:: 3.11
Previously, this function was only available after including
``<frameobject.h>``.
.. c:function:: PyFrameObject* PyFrame_GetBack(PyFrameObject *frame)
Get the *frame* next outer frame.
Return a :term:`strong reference`, or ``NULL`` if *frame* has no outer
frame.
.. versionadded:: 3.9
.. c:function:: PyObject* PyFrame_GetBuiltins(PyFrameObject *frame)
Get the *frame*'s :attr:`~frame.f_builtins` attribute.
Return a :term:`strong reference`. The result cannot be ``NULL``.
.. versionadded:: 3.11
.. c:function:: PyCodeObject* PyFrame_GetCode(PyFrameObject *frame)
Get the *frame* code.
Return a :term:`strong reference`.
The result (frame code) cannot be ``NULL``.
.. versionadded:: 3.9
.. c:function:: PyObject* PyFrame_GetGenerator(PyFrameObject *frame)
Get the generator, coroutine, or async generator that owns this frame,
or ``NULL`` if this frame is not owned by a generator.
Does not raise an exception, even if the return value is ``NULL``.
Return a :term:`strong reference`, or ``NULL``.
.. versionadded:: 3.11
.. c:function:: PyObject* PyFrame_GetGlobals(PyFrameObject *frame)
Get the *frame*'s :attr:`~frame.f_globals` attribute.
Return a :term:`strong reference`. The result cannot be ``NULL``.
.. versionadded:: 3.11
.. c:function:: int PyFrame_GetLasti(PyFrameObject *frame)
Get the *frame*'s :attr:`~frame.f_lasti` attribute.
Returns -1 if ``frame.f_lasti`` is ``None``.
.. versionadded:: 3.11
.. c:function:: PyObject* PyFrame_GetVar(PyFrameObject *frame, PyObject *name)
Get the variable *name* of *frame*.
* Return a :term:`strong reference` to the variable value on success.
* Raise :exc:`NameError` and return ``NULL`` if the variable does not exist.
* Raise an exception and return ``NULL`` on error.
*name* type must be a :class:`str`.
.. versionadded:: 3.12
.. c:function:: PyObject* PyFrame_GetVarString(PyFrameObject *frame, const char *name)
Similar to :c:func:`PyFrame_GetVar`, but the variable name is a C string
encoded in UTF-8.
.. versionadded:: 3.12
.. c:function:: PyObject* PyFrame_GetLocals(PyFrameObject *frame)
Get the *frame*'s :attr:`~frame.f_locals` attribute.
If the frame refers to an :term:`optimized scope`, this returns a
write-through proxy object that allows modifying the locals.
In all other cases (classes, modules, :func:`exec`, :func:`eval`) it returns
the mapping representing the frame locals directly (as described for
:func:`locals`).
Return a :term:`strong reference`.
.. versionadded:: 3.11
.. versionchanged:: 3.13
As part of :pep:`667`, return an instance of :c:var:`PyFrameLocalsProxy_Type`.
.. c:function:: int PyFrame_GetLineNumber(PyFrameObject *frame)
Return the line number that *frame* is currently executing.
Frame Locals Proxies
^^^^^^^^^^^^^^^^^^^^
.. versionadded:: 3.13
The :attr:`~frame.f_locals` attribute on a :ref:`frame object <frame-objects>`
is an instance of a "frame-locals proxy". The proxy object exposes a
write-through view of the underlying locals dictionary for the frame. This
ensures that the variables exposed by ``f_locals`` are always up to date with
the live local variables in the frame itself.
See :pep:`667` for more information.
.. c:var:: PyTypeObject PyFrameLocalsProxy_Type
The type of frame :func:`locals` proxy objects.
.. c:function:: int PyFrameLocalsProxy_Check(PyObject *obj)
Return non-zero if *obj* is a frame :func:`locals` proxy.
Internal Frames
^^^^^^^^^^^^^^^
Unless using :pep:`523`, you will not need this.
.. c:struct:: _PyInterpreterFrame
The interpreter's internal frame representation.
.. versionadded:: 3.11
.. c:function:: PyObject* PyUnstable_InterpreterFrame_GetCode(struct _PyInterpreterFrame *frame);
Return a :term:`strong reference` to the code object for the frame.
.. versionadded:: 3.12
.. c:function:: int PyUnstable_InterpreterFrame_GetLasti(struct _PyInterpreterFrame *frame);
Return the byte offset into the last executed instruction.
.. versionadded:: 3.12
.. c:function:: int PyUnstable_InterpreterFrame_GetLine(struct _PyInterpreterFrame *frame);
Return the currently executing line number, or -1 if there is no line number.
.. versionadded:: 3.12
|
