Repository navigation
[C-API] Add a function to access PyCodeObject.co_code in C #92154
Description
Feature or enhancement
Previously, you could access the co_code field in PyCodeObject directly to access the bytecode. This is no longer the case since 2bde682. Currently in 3.11a7+, C code cannot easily obtain the equivalent of co_code in 3.10. co_code_adaptive gets quickened bytecode which is not equivalent to the 3.10 behavior.
I would imagine many tools relying on the old behavior will break.
Pitch
I propose we expose some form of the currently internal _PyCode_GetCode.
Previous discussion
Related to #91397.
See also coverage.py issue coveragepy/coveragepy#1367
Activity
vstinner commentedon May 2, 2022
See also #91397 "[C API] Move the PyCodeObject structure to the internal C API (make the structure opaque)".
vstinner commentedon May 2, 2022
Even if no function is added, please document at least the member removal in https://docs.python.org/dev/whatsnew/3.11.html (C API > Porting to Python 3.11) since the PyCodeObject structure is part of the public C API.
markshannon commentedon May 2, 2022
Exposing
PyCode_GetCodemakes sense to me, as it equivalent tocode.co_code.@brandtbucher
brandtbucher commentedon May 2, 2022
Sounds good to me as well.
gh-92154: Expose PyCode_GetCode in the C API (GH-92168)
vstinner commentedon May 3, 2022
And I added the function to pythoncapi-compat: python/pythoncapi-compat@85d1bd8