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cpython/Misc
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Ammar Askar f9a7d41bac
gh-96092: Fix traceback.walk_stack(None) skipping too many frames (#129330) 
As it says in its documentation, walk_stack was meant to just
follow `f.f_back` like other functions in the traceback module.
Instead it was previously doing `f.f_back.f_back` and then this
changed to `f_back.f_back.f_back.f_back' in Python 3.11 breaking
its behavior for external users.

This happened because the walk_stack function never really had
any good direct tests and its only consumer in the traceback module was
`extract_stack` which passed the result into `StackSummary.extract`.
As a generator, it was previously capturing the state of the stack
when it was first iterated over, rather than the stack when `walk_stack`
was called. Meaning when called inside the two method deep
`extract` and `extract_stack` calls, two `f_back`s were needed.
When 3.11 modified the sequence of calls in `extract`, two more
`f_back`s were needed to make the tests happy.

This changes the generator to capture the stack when `walk_stack` is
called, rather than when it is first iterated over. Since this is
technically a breaking change in behavior, there is a versionchanged
to the documentation. In practice, this is unlikely to break anyone,
you would have been needing to store the result of `walk_stack` and
expecting it to change.
2025-02-13 01:43:09 +00:00
..
NEWS.d gh-96092: Fix traceback.walk_stack(None) skipping too many frames (#129330) 2025-02-13 01:43:09 +00:00
rhel7
ACKS gh-119349: Add ctypes.util.dllist -- list loaded shared libraries (GH-122946) 2025-02-08 14:02:36 +01:00
externals.spdx.json
HISTORY
indent.pro
platform_triplet.c
Porting
python-config.in
python-config.sh.in
python-embed.pc.in
python.man Update manpage environment variables and command line arguments (#129623) 2025-02-12 13:00:35 +02:00
python.pc.in
README gh-124457: Remove coverity from CPython repo (GH-124460) 2024-09-27 13:42:32 -07:00
README.AIX
README.valgrind
sbom.spdx.json gh-129467: Fix compiler warning in mpdecimal word_to_string() (#116346) 2025-01-30 11:57:55 +01:00
SpecialBuilds.txt GH-129763: Remove the LLTRACE macro (GH-129764) 2025-02-07 08:49:51 -08:00
stable_abi.toml gh-91417: Remove PySequence_Fast() from the limited C API (#129398) 2025-02-02 23:17:30 +01:00
svnmap.txt
valgrind-python.supp
vgrindefs

README 

Python Misc subdirectory
========================

This directory contains files that wouldn't fit in elsewhere.  Some
documents are only of historic importance.

Files found here
----------------

ACKS                    Acknowledgements
HISTORY                 News from previous releases -- oldest last
indent.pro              GNU indent profile approximating my C style
NEWS                    News for this release (for some meaning of "this")
Porting                 Mini-FAQ on porting to new platforms
python-config.in        Python script template for python-config
python.man              UNIX man page for the python interpreter
python.pc.in            Package configuration info template for pkg-config
README                  The file you're reading now
README.AIX              Information about using Python on AIX
README.valgrind         Information for Valgrind users, see valgrind-python.supp
SpecialBuilds.txt       Describes extra symbols you can set for debug builds
svnmap.txt              Map of old SVN revs and branches to hg changeset ids,
                        help history-digging
valgrind-python.supp    Valgrind suppression file, see README.valgrind
vgrindefs               Python configuration for vgrind (a generic pretty printer)