:attr:`f_code` is the code object being executed in this frame; :attr:`f_locals`
is the dictionary used to look up local variables; :attr:`f_globals` is used for
global variables; :attr:`f_builtins` is used for built-in (intrinsic) names;
- :attr:`f_lasti` gives the precise instruction (it represents a wordcode index, which
- means that to get an index into the bytecode string of the code object it needs to be
- multiplied by 2).
+ :attr:`f_lasti` gives the precise instruction (this is an index into the
+ bytecode string of the code object).
Accessing ``f_code`` raises an :ref:`auditing event <auditing>`
``object.__getattr__`` with arguments ``obj`` and ``"f_code"``.
offset instead of a simple offset into the bytecode string. This means that this
number needs to be multiplied by 2 to be used with APIs that expect a byte offset
instead (like :c:func:`PyCode_Addr2Line` for example). Notice as well that the
- ``f_lasti`` member of ``FrameObject`` objects is not considered stable.
+ ``f_lasti`` member of ``FrameObject`` objects is not considered stable: please
+ use :c:func:`PyFrame_GetLineNumber` instead.
CPython bytecode changes
========================