gh-105184: document that marshal functions can fail and need to be checked with PyErr_Occurred#105185

iritkatriel

As you suggested, I made this PR in order to backport it as far back as we can. Both of these functions should be changed to have int return values.

I have one doubt though about what I did here - PyMarshal_WriteLongToFile, as far as I can tell, doesn't actually ever fail. But we don't want to document that, because we want to change it to have int return value and be fallible (in case of future changes). So I think we do want to say in the doc that it can fail, even though now it can't. What do you think?

Issue: C API functions with no return value cannot report errors #105184

📚 Documentation preview 📚: https://cpython-previews--105185.org.readthedocs.build/

… be checked with PyErr_Occurred

encukou

I have one doubt though about what I did here - PyMarshal_WriteLongToFile, as far as I can tell, doesn't actually ever fail. But we don't want to document that, because we want to change it to have int return value and be fallible (in case of future changes). So I think we do want to say in the doc that it can fail, even though now it can't. What do you think?

My thinking is a bit nuanced :)

For the user-facing docs, definitely say that the error should be checked. Your wording is perfect.

But, we should assume that authors of existing code use the existing documentation. So, the return value change should be treated as an API break despite what current documentation will say.
There should be a comment in the source to warn future devs about that.

iritkatriel

There should be a comment in the source to warn future devs about that.

Agreed.

It doesn't make sense to add it to this PR, because for now the return value is void. But in the PR that makes it int I will add this comment.

iritkatriel

There should be a comment in the source to warn future devs about that.

Agreed.

It doesn't make sense to add it to this PR, because for now the return value is void. But in the PR that makes it int I will add this comment.

Actually I can write a comment here that setting an error is a breaking change.

miss-islington

Thanks @iritkatriel for the PR 🌮🎉.. I'm working now to backport this PR to: 3.7, 3.8, 3.9, 3.10, 3.11, 3.12.
🐍🍒⛏🤖

… be checked with PyErr_Occurred (pythonGH-105185) (cherry picked from commit ee26ca1) Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>

bedevere-bot

GH-105218 is a backport of this pull request to the 3.12 branch.

bedevere-bot

GH-105219 is a backport of this pull request to the 3.11 branch.

bedevere-bot

GH-105220 is a backport of this pull request to the 3.10 branch.

bedevere-bot

GH-105221 is a backport of this pull request to the 3.9 branch.

… be checked with PyErr_Occurred (pythonGH-105185) (cherry picked from commit ee26ca1) Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>

bedevere-bot

GH-105222 is a backport of this pull request to the 3.8 branch.

bedevere-bot

GH-105223 is a backport of this pull request to the 3.7 branch.

… be checked with PyErr_Occurred (pythonGH-105185) (cherry picked from commit ee26ca1) Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>

…o be checked with PyErr_Occurred (GH-105185) (#105218) gh-105184: document that marshal functions can fail and need to be checked with PyErr_Occurred (GH-105185) (cherry picked from commit ee26ca1) Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>

…o be checked with PyErr_Occurred (GH-105185) (#105219) gh-105184: document that marshal functions can fail and need to be checked with PyErr_Occurred (GH-105185) (cherry picked from commit ee26ca1) Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>

bedevere-bot

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot ARM64 Windows Non-Debug 3.x has failed when building commit ee26ca1.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
Go to the page of the buildbot that failed (https://buildbot.python.org/all/#builders/730/builds/8103) and take a look at the build logs.
Check if the failure is related to this commit (ee26ca1) or if it is a false positive.
If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/all/#builders/730/builds/8103

Failed tests:

test_subprocess

Summary of the results of the build (if available):

== Tests result: FAILURE then SUCCESS ==

415 tests OK.

10 slowest tests:

test_peg_generator: 3 min 59 sec
test_multiprocessing_spawn: 2 min 13 sec
test_concurrent_futures: 1 min 16 sec
test_socket: 1 min 7 sec
test_mmap: 1 min 1 sec
test_io: 56.4 sec
test_math: 54.7 sec
test_hashlib: 46.9 sec
test_urllib2_localnet: 45.4 sec
test_tarfile: 36.5 sec

32 tests skipped:
test.test_asyncio.test_unix_events test_curses test_dbm_gnu
test_dbm_ndbm test_devpoll test_epoll test_fcntl test_fork1
test_gdb test_grp test_ioctl test_kqueue test_multiprocessing_fork
test_multiprocessing_forkserver test_openpty test_perf_profiler
test_perfmaps test_poll test_posix test_pty test_pwd test_readline
test_resource test_syslog test_threadsignals test_tkinter test_ttk
test_wait3 test_wait4 test_xxtestfuzz test_zipfile64 test_zoneinfo

1 re-run test:
test_subprocess

Total duration: 20 min 39 sec

Click to see traceback logs

Traceback (most recent call last):
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\support\__init__.py", line 207, in _force_run
    return func(*args)
           ^^^^^^^^^^^
PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'C:\\Workspace\\buildarea\\3.x.linaro-win-arm64.nondebug\\build\\build\\test_python_12184�\\test_python_worker_8132�'


Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\__main__.py", line 2, in <module>
    main()
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\libregrtest\main.py", line 802, in main
    Regrtest().main(tests=tests, **kwargs)
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\libregrtest\main.py", line 732, in main
    with os_helper.temp_cwd(test_cwd, quiet=True):
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\contextlib.py", line 155, in __exit__
    self.gen.throw(value)
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\support\os_helper.py", line 531, in temp_cwd
    with temp_dir(path=name, quiet=quiet) as temp_path:
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\contextlib.py", line 155, in __exit__
    self.gen.throw(value)
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\support\os_helper.py", line 485, in temp_dir
    rmtree(path)
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\support\os_helper.py", line 442, in rmtree
    _rmtree(path)
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\support\os_helper.py", line 385, in _rmtree
    _waitfor(_rmtree_inner, path, waitall=True)
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\support\os_helper.py", line 330, in _waitfor
    func(pathname)
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\support\os_helper.py", line 382, in _rmtree_inner
    _force_run(fullname, os.rmdir, fullname)
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\support\__init__.py", line 218, in _force_run
    return func(*args)
           ^^^^^^^^^^^
PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'C:\\Workspace\\buildarea\\3.x.linaro-win-arm64.nondebug\\build\\build\\test_python_12184�\\test_python_worker_8132�'


Traceback (most recent call last):
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\support\os_helper.py", line 480, in temp_dir
    yield path
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\support\os_helper.py", line 533, in temp_cwd
    yield cwd_dir
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\libregrtest\main.py", line 738, in main
    self._main(tests, kwargs)
  File "C:\Workspace\buildarea\3.x.linaro-win-arm64.nondebug\build\Lib\test\libregrtest\main.py", line 797, in _main
    sys.exit(0)
SystemExit: 0

bedevere-bot

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot AMD64 Arch Linux TraceRefs 3.x has failed when building commit ee26ca1.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
Go to the page of the buildbot that failed (https://buildbot.python.org/all/#builders/484/builds/3433) and take a look at the build logs.
Check if the failure is related to this commit (ee26ca1) or if it is a false positive.
If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/all/#builders/484/builds/3433

Failed tests:

test__xxsubinterpreters

Summary of the results of the build (if available):

==

Click to see traceback logs

remote: Enumerating objects: 7, done.        
remote: Counting objects:  14% (1/7)        
remote: Counting objects:  28% (2/7)        
remote: Counting objects:  42% (3/7)        
remote: Counting objects:  57% (4/7)        
remote: Counting objects:  71% (5/7)        
remote: Counting objects:  85% (6/7)        
remote: Counting objects: 100% (7/7)        
remote: Counting objects: 100% (7/7), done.        
remote: Compressing objects:  14% (1/7)        
remote: Compressing objects:  28% (2/7)        
remote: Compressing objects:  42% (3/7)        
remote: Compressing objects:  57% (4/7)        
remote: Compressing objects:  71% (5/7)        
remote: Compressing objects:  85% (6/7)        
remote: Compressing objects: 100% (7/7)        
remote: Compressing objects: 100% (7/7), done.        
remote: Total 7 (delta 0), reused 2 (delta 0), pack-reused 0        
From https://github.com/python/cpython
 * branch                  main       -> FETCH_HEAD
Note: switching to 'ee26ca13a129da8cf549409d0a1b2e892ff2b4ec'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at ee26ca13a1 gh-105184: document that marshal functions can fail and need to be checked with PyErr_Occurred (#105185)
Switched to and reset branch 'main'

Objects/object.c:2197: _Py_ForgetReference: Assertion failed: invalid object chain
Enable tracemalloc to get the memory block allocation traceback

object address  : 0x7f621294bc50
object refcount : 0
object type     : 0x55fbfd156660
object type name: tuple
object repr     : <refcnt 0 at 0x7f621294bc50>

Fatal Python error: _PyObject_AssertFailed: _PyObject_AssertFailed
Python runtime state: initialized

Thread 0x00007f62215276c0 (most recent call first):
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/test__xxsubinterpreters.py", line 58 in run
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/threading.py", line 989 in run
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/threading.py", line 1052 in _bootstrap_inner
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/threading.py", line 1009 in _bootstrap

Current thread 0x00007f6222bb5740 (most recent call first):
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/test__xxsubinterpreters.py", line 48 in _wait_for_interp_to_run
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/test__xxsubinterpreters.py", line 66 in _running
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/contextlib.py", line 137 in __enter__
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/test__xxsubinterpreters.py", line 701 in test_already_running
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/unittest/case.py", line 589 in _callTestMethod
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/unittest/case.py", line 634 in run
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/unittest/case.py", line 690 in __call__
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/unittest/suite.py", line 122 in run
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/unittest/suite.py", line 84 in __call__
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/unittest/suite.py", line 122 in run
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/unittest/suite.py", line 84 in __call__
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/unittest/suite.py", line 122 in run
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/unittest/suite.py", line 84 in __call__
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/unittest/runner.py", line 240 in run
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/support/__init__.py", line 1115 in _run_suite
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/support/__init__.py", line 1241 in run_unittest
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/libregrtest/runtest.py", line 294 in _test_module
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/libregrtest/runtest.py", line 330 in _runtest_inner2
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/libregrtest/runtest.py", line 373 in _runtest_inner
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/libregrtest/runtest.py", line 248 in _runtest
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/libregrtest/runtest.py", line 278 in runtest
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/libregrtest/main.py", line 365 in rerun_failed_tests
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/libregrtest/main.py", line 783 in _main
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/libregrtest/main.py", line 738 in main
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/libregrtest/main.py", line 802 in main
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/__main__.py", line 2 in <module>
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/runpy.py", line 88 in _run_code
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/runpy.py", line 198 in _run_module_as_main

Extension modules: _testcapi, _xxsubinterpreters (total: 2)
make: *** [Makefile:2005: buildbottest] Aborted (core dumped)

Cannot open file '/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/test-results.xml' for upload

… be checked with PyErr_Occurred (GH-105185) (#105222) (cherry picked from commit ee26ca1) Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>

… be checked with PyErr_Occurred (GH-105185) (#105221) (cherry picked from commit ee26ca1) Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>

…o be checked with PyErr_Occurred (GH-105185) (#105220) (cherry picked from commit ee26ca1) Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>

* Post 3.8.16 * [3.8] Update copyright years to 2023. (pythongh-100852) * [3.8] Update copyright years to 2023. (pythongh-100848). (cherry picked from commit 11f9932) Co-authored-by: Benjamin Peterson <benjamin@python.org> * Update additional copyright years to 2023. Co-authored-by: Ned Deily <nad@python.org> * [3.8] Update copyright year in README (pythonGH-100863) (pythonGH-100867) (cherry picked from commit 30a6cc4) Co-authored-by: Ned Deily <nad@python.org> Co-authored-by: HARSHA VARDHAN <75431678+Thunder-007@users.noreply.github.com> * [3.8] Correct CVE-2020-10735 documentation (pythonGH-100306) (python#100698) (cherry picked from commit 1cf3d78) (cherry picked from commit 88fe8d7) Co-authored-by: Jeremy Paige <ucodery@gmail.com> Co-authored-by: Gregory P. Smith <greg@krypto.org> * [3.8] Bump Azure Pipelines to ubuntu-22.04 (pythonGH-101089) (python#101215) (cherry picked from commit c22a55c) Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com> * [3.8] pythongh-100180: Update Windows installer to OpenSSL 1.1.1s (pythonGH-100903) (python#101258) * pythongh-101422: (docs) TarFile default errorlevel argument is 1, not 0 (pythonGH-101424) (cherry picked from commit ea23271) Co-authored-by: Owain Davies <116417456+OTheDev@users.noreply.github.com> * [3.8] pythongh-95778: add doc missing in some places (pythonGH-100627) (python#101630) (cherry picked from commit 4652182) * [3.8] pythongh-101283: Improved fallback logic for subprocess with shell=True on Windows (pythonGH-101286) (python#101710) Co-authored-by: Oleg Iarygin <oleg@arhadthedev.net> Co-authored-by: Steve Dower <steve.dower@microsoft.com> * [3.8] pythongh-101981: Fix Ubuntu SSL tests with OpenSSL (3.1.0-beta1) CI i… (python#102095) [3.8] pythongh-101981: Fix Ubuntu SSL tests with OpenSSL (3.1.0-beta1) CI issue (pythongh-102079) * [3.8] pythonGH-102306 Avoid GHA CI macOS test_posix failure by using the appropriate macOS SDK (pythonGH-102307) [3.8] Avoid GHA CI macOS test_posix failure by using the appropriate macOS SDK. * [3.8] pythongh-101726: Update the OpenSSL version to 1.1.1t (pythonGH-101727) (pythonGH-101752) Fixes CVE-2023-0286 (High) and a couple of Medium security issues. https://www.openssl.org/news/secadv/20230207.txt Co-authored-by: Gregory P. Smith <greg@krypto.org> Co-authored-by: Ned Deily <nad@python.org> * [3.8] pythongh-102627: Replace address pointing toward malicious web page (pythonGH-102630) (pythonGH-102667) (cherry picked from commit 61479d4) Co-authored-by: Blind4Basics <32236948+Blind4Basics@users.noreply.github.com> Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM> Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com> * [3.8] pythongh-101997: Update bundled pip version to 23.0.1 (pythonGH-101998). (python#102244) (cherry picked from commit 89d9ff0) * [3.8] pythongh-102950: Implement PEP 706 – Filter for tarfile.extractall (pythonGH-102953) (python#104548) Backport of c8c3956 * [3.8] pythongh-99889: Fix directory traversal security flaw in uu.decode() (pythonGH-104096) (python#104332) (cherry picked from commit 0aeda29) Co-authored-by: Sam Carroll <70000253+samcarroll42@users.noreply.github.com> * [3.8] pythongh-104049: do not expose on-disk location from SimpleHTTPRequestHandler (pythonGH-104067) (python#104121) Do not expose the local server's on-disk location from `SimpleHTTPRequestHandler` when generating a directory index. (unnecessary information disclosure) (cherry picked from commit c7c3a60) Co-authored-by: Ethan Furman <ethan@stoneleaf.us> Co-authored-by: Gregory P. Smith <greg@krypto.org> Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com> * [3.8] pythongh-103935: Use `io.open_code()` when executing code in trace and profile modules (pythonGH-103947) (python#103954) Co-authored-by: Tian Gao <gaogaotiantian@hotmail.com> * [3.8] pythongh-68966: fix versionchanged in docs (pythonGH-105299) * [3.8] Update GitHub CI workflow for macOS. (pythonGH-105302) * [3.8] pythongh-105184: document that marshal functions can fail and need to be checked with PyErr_Occurred (pythonGH-105185) (python#105222) (cherry picked from commit ee26ca1) Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com> * [3.8] pythongh-102153: Start stripping C0 control and space chars in `urlsplit` (pythonGH-102508) (pythonGH-104575) (pythonGH-104592) (python#104593) (python#104895) `urllib.parse.urlsplit` has already been respecting the WHATWG spec a bit pythonGH-25595. This adds more sanitizing to respect the "Remove any leading C0 control or space from input" [rule](https://url.spec.whatwg.org/GH-url-parsing:~:text=Remove%20any%20leading%20and%20trailing%20C0%20control%20or%20space%20from%20input.) in response to [CVE-2023-24329](https://nvd.nist.gov/vuln/detail/CVE-2023-24329). I simplified the docs by eliding the state of the world explanatory paragraph in this security release only backport. (people will see that in the mainline /3/ docs) (cherry picked from commit d7f8a5f) (cherry picked from commit 2f630e1) (cherry picked from commit 610cc0a) (cherry picked from commit f48a96a) Co-authored-by: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Co-authored-by: Illia Volochii <illia.volochii@gmail.com> Co-authored-by: Gregory P. Smith [Google] <greg@krypto.org> * [3.8] pythongh-103142: Upgrade binary builds and CI to OpenSSL 1.1.1u (pythonGH-105174) (pythonGH-105200) (pythonGH-105205) (python#105370) Upgrade builds to OpenSSL 1.1.1u. Also updates _ssl_data_111.h from OpenSSL 1.1.1u, _ssl_data_300.h from 3.0.9. Manual edits to the _ssl_data_300.h file prevent it from removing any existing definitions in case those exist in some peoples builds and were important (avoiding regressions during backporting). (cherry picked from commit ede89af) (cherry picked from commit e15de14) Co-authored-by: Gregory P. Smith <greg@krypto.org> Co-authored-by: Ned Deily <nad@python.org> * Python 3.8.17 * Post 3.8.17 * Updated CI to build 3.8.17 --------- Co-authored-by: Łukasz Langa <lukasz@langa.pl> Co-authored-by: Benjamin Peterson <benjamin@python.org> Co-authored-by: Ned Deily <nad@python.org> Co-authored-by: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Co-authored-by: HARSHA VARDHAN <75431678+Thunder-007@users.noreply.github.com> Co-authored-by: Gregory P. Smith <greg@krypto.org> Co-authored-by: Jeremy Paige <ucodery@gmail.com> Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com> Co-authored-by: Steve Dower <steve.dower@python.org> Co-authored-by: Owain Davies <116417456+OTheDev@users.noreply.github.com> Co-authored-by: Éric <earaujo@caravan.coop> Co-authored-by: Oleg Iarygin <oleg@arhadthedev.net> Co-authored-by: Steve Dower <steve.dower@microsoft.com> Co-authored-by: Dong-hee Na <donghee.na@python.org> Co-authored-by: Blind4Basics <32236948+Blind4Basics@users.noreply.github.com> Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM> Co-authored-by: Pradyun Gedam <pradyunsg@gmail.com> Co-authored-by: Petr Viktorin <encukou@gmail.com> Co-authored-by: Sam Carroll <70000253+samcarroll42@users.noreply.github.com> Co-authored-by: Ethan Furman <ethan@stoneleaf.us> Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com> Co-authored-by: Tian Gao <gaogaotiantian@hotmail.com> Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com> Co-authored-by: stratakis <cstratak@redhat.com> Co-authored-by: Illia Volochii <illia.volochii@gmail.com>

pythongh-105184: document that marshal functions can fail and need to… …

212c72e

… be checked with PyErr_Occurred

iritkatriel requested a review from tiran as a code owner June 1, 2023 09:43

bedevere-bot added the awaiting core review label Jun 1, 2023

bedevere-bot mentioned this pull request Jun 1, 2023

C API functions with no return value cannot report errors #105184

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bedevere-bot added docs Documentation in the Doc dir skip news labels Jun 1, 2023

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iritkatriel merged commit ee26ca1 into python:main Jun 2, 2023

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iritkatriel deleted the marshal-doc branch June 2, 2023 07:59

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erlend-aasland mentioned this pull request Jun 6, 2023

3.12 backport gh 105236 #105358

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gh-105184: document that marshal functions can fail and need to be checked with PyErr_Occurred#105185

gh-105184: document that marshal functions can fail and need to be checked with PyErr_Occurred#105185
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