bpo-44964: Add a note explaining the new semantics of f_last_i in frame objects #28200
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Thanks @pablogsal for the PR 🌮🎉.. I'm working now to backport this PR to: 3.10. |
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…me objects (pythonGH-28200) (cherry picked from commit fa2c0b8) Co-authored-by: Pablo Galindo Salgado <[email protected]>
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GH-28202 is a backport of this pull request to the 3.10 branch. |
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…me objects (GH-28200) (cherry picked from commit fa2c0b8) Co-authored-by: Pablo Galindo Salgado <[email protected]>
markshannon
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Sep 7, 2021
| @@ -1069,8 +1069,9 @@ Internal types | |||
| :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 (this is an index into the | |||
| bytecode string of the code object). | |||
| :attr:`f_lasti` gives the precise instruction (it represents a wordcode index, which | |||
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This is incorrect. f_lasti is the index in the bytecode. No need to multiply by two.
markshannon
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Sep 7, 2021
| @@ -1948,6 +1948,12 @@ Changes in the C API | |||
| source_buf = PyBytes_AsString(source_bytes_object); | |||
| code = Py_CompileString(source_buf, filename, Py_file_input); | |||
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| * For ``FrameObject`` objects, the ``f_lasti`` member now represents a wordcode | |||
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Can you add a note to use PyFrame_GetLineNumber() instead
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https://bugs.python.org/issue44964