cpython/Doc/c-api/frame.rst

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.. highlight:: c
Frame Objects
-------------
.. c:type:: PyFrameObject
The C structure of the objects used to describe frame objects.
The structure is not part of the C API.
.. versionchanged:: 3.11
The structure moved to the internal C API headers.
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: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.
*frame* must not be ``NULL``.
.. versionadded:: 3.9
.. c:function:: PyCodeObject* PyFrame_GetCode(PyFrameObject *frame)
Get the *frame* code.
Return a :term:`strong reference`.
*frame* must not be ``NULL``. The result (frame code) cannot be ``NULL``.
.. versionadded:: 3.9
.. c:function:: PyObject* PyFrame_GetLocals(PyFrameObject *frame)
Get the *frame*'s ``f_locals`` attribute (:class:`dict`).
Return a :term:`strong reference`.
*frame* must not be ``NULL``.
.. versionadded:: 3.11
.. c:function:: int PyFrame_GetLineNumber(PyFrameObject *frame)
Return the line number that *frame* is currently executing.
*frame* must not be ``NULL``.