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hugovk · 2025-08-12T11:16:13Z

The 3.14 branch contains:

    Python 3.14b3 3625 (Fix handling of opcodes that may leave operands on the stack when optimizing LOAD_FAST)
    Python 3.14b5 3626 (Fix missing exception handlers in logical expression)

Let's add them both here. And b5 should be rc2.

Issue: Python implicit boolean conversion in logical operations bypasses try/except on 3.14.0rc1 #137288

miss-islington-app · 2025-08-12T11:52:14Z

miss-islington-app · 2025-08-12T11:52:16Z

Sorry, @hugovk and @encukou, I could not cleanly backport this to 3.14 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker 715647a99ad91ebc77f3a250f6417c411116f33d 3.14

encukou · 2025-08-12T11:52:19Z

Sorry for the oversight.

bedevere-app · 2025-08-12T11:53:58Z

GH-137667 is a backport of this pull request to the 3.14 branch.

bedevere-app · 2025-08-12T11:54:22Z

GH-137667 is a backport of this pull request to the 3.14 branch.

(cherry picked from commit 715647a) Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

hugovk · 2025-08-12T11:58:16Z

No problem :)

bedevere-bot · 2025-08-12T12:10:13Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot aarch64 Android 3.x (tier-3) has failed when building commit 715647a.

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/#/builders/1594/builds/3044) and take a look at the build logs.
Check if the failure is related to this commit (715647a) 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/#/builders/1594/builds/3044

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

Click to see traceback logs

remote: Enumerating objects: 9, done.        
remote: Counting objects:  11% (1/9)        
remote: Counting objects:  22% (2/9)        
remote: Counting objects:  33% (3/9)        
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remote: Counting objects: 100% (9/9)        
remote: Counting objects: 100% (9/9), done.        
remote: Compressing objects:  50% (1/2)        
remote: Compressing objects: 100% (2/2)        
remote: Compressing objects: 100% (2/2), done.        
remote: Total 5 (delta 4), reused 3 (delta 3), pack-reused 0 (from 0)        
From https://github.com/python/cpython
 * branch                    main       -> FETCH_HEAD
Note: switching to '715647a99ad91ebc77f3a250f6417c411116f33d'.

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

HEAD is now at 715647a99ad gh-137288: Update 3.14 magic numbers (GH-137665)
Switched to and reset branch 'main'

configure: WARNING: no system libmpdec found; falling back to pure-Python version for the decimal module
configure: WARNING: pkg-config is missing. Some dependencies may not be detected correctly.

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../../configure: line 4071: pkg-config: command not found
configure: WARNING: no system libmpdec found; falling back to pure-Python version for the decimal module
configure: WARNING: pkg-config is missing. Some dependencies may not be detected correctly.

../../Python/fileutils.c:460:1: warning: unused function 'decode_current_locale' [-Wunused-function]
  460 | decode_current_locale(const char* arg, wchar_t **wstr, size_t *wlen,
      | ^~~~~~~~~~~~~~~~~~~~~
../../Python/fileutils.c:679:1: warning: unused function 'encode_current_locale' [-Wunused-function]
  679 | encode_current_locale(const wchar_t *text, char **str,
      | ^~~~~~~~~~~~~~~~~~~~~
2 warnings generated.
../../Modules/_localemodule.c:195:1: warning: unused function 'is_all_ascii' [-Wunused-function]
  195 | is_all_ascii(const char *str)
      | ^~~~~~~~~~~~
1 warning generated.
../../Modules/pwdmodule.c:69:16: warning: unused variable 'pwd_db_mutex' [-Wunused-variable]
   69 | static PyMutex pwd_db_mutex = {0};
      |                ^~~~~~~~~~~~
1 warning generated.
../../Modules/_hacl/Lib_Memzero0.c:66:6: warning: "Your platform does not support any safe implementation of memzero -- consider a pull request!" [-W#warnings]
   66 |     #warning "Your platform does not support any safe implementation of memzero -- consider a pull request!"
      |      ^
1 warning generated.

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…7667) Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

* main: pythongh-137288: Update 3.14 magic numbers (pythonGH-137665) pythongh-135228: When @DataClass(slots=True) replaces a dataclass, make the original class collectible (take 2) (pythonGH-137047) pythongh-126008: Improve docstrings for Tkinter cget and configure methods (pythonGH-133303) pythongh-131885: Use positional-only markers for ``max()`` and ``min()`` (python#131868) pythonGH-137426: Remove code deprecation of `importlib.abc.ResourceLoader` (pythonGH-137567) pythongh-125897: Mark range function parameters as positional only (python#125945) pythongh-137400: Fix a crash when disabling profiling across all threads (pythongh-137471) pythongh-115766: Fix IPv4Interface.is_unspecified (pythonGH-137326) pythongh-128813: cleanup C-API docs for PyComplexObject (pythonGH-137579) pythongh-135953: Profile a module or script with sampling profiler (python#136777) Fix documentation of hash in PyHash_FuncDef (python#137595)

…137665) (python#137667) Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Update 3.14 magic numbers

9f9dd85

hugovk added the needs backport to 3.14 bugs and security fixes label Aug 12, 2025

bedevere-app Bot added the awaiting core review label Aug 12, 2025

bedevere-app Bot mentioned this pull request Aug 12, 2025

Python implicit boolean conversion in logical operations bypasses try/except on 3.14.0rc1 #137288

Closed

hugovk mentioned this pull request Aug 12, 2025

[3.14] gh-137288: Fix bug where boolean expressions are not associated with the correct exception handler (GH-137310). #137427

Merged

hugovk added the skip news label Aug 12, 2025

encukou merged commit 715647a into python:main Aug 12, 2025
46 checks passed

bedevere-app Bot removed the awaiting core review label Aug 12, 2025

bedevere-app Bot removed the needs backport to 3.14 bugs and security fixes label Aug 12, 2025

encukou pushed a commit to encukou/cpython that referenced this pull request Aug 12, 2025

[3.14] pythongh-137288: Update 3.14 magic numbers (pythonGH-137665)

72a639d

(cherry picked from commit 715647a) Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

hugovk deleted the 3.14-fix-magic-number branch August 12, 2025 11:57

hugovk mentioned this pull request Aug 12, 2025

gh-137288: Fix Python version in magic number comment #137664

Closed

hugovk added a commit that referenced this pull request Aug 12, 2025

[3.14] gh-137288: Update version in magic number log (GH-137665) (#13…

946b226

…7667) Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Agent-Hellboy pushed a commit to Agent-Hellboy/cpython that referenced this pull request Aug 19, 2025

pythongh-137288: Update 3.14 magic numbers (pythonGH-137665)

8625362

kumaraditya303 pushed a commit to miss-islington/cpython that referenced this pull request Sep 9, 2025

[3.14] pythongh-137288: Update version in magic number log (pythonGH-…

49d5ed0

…137665) (python#137667) Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

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gh-137288: Update 3.14 magic numbers - #137665

gh-137288: Update 3.14 magic numbers#137665
encukou merged 1 commit into
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hugovk commented Aug 12, 2025 •

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