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gh-135124: Change stdout errors in regrtest worker process#135138

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vstinner merged 3 commits intopython:mainfrom
vstinner:regrtest_stdout
Jun 5, 2025
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gh-135124: Change stdout errors in regrtest worker process#135138
vstinner merged 3 commits intopython:mainfrom
vstinner:regrtest_stdout

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@vstinner vstinner commented Jun 4, 2025 •
edited by bedevere-app bot
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Set sys.stdout encoder error handler to backslashreplace in regrtest to avoid UnicodeEncodeError when printing a traceback or any other non-encodable character.

Move the code from the Regrtest class to setup_process().

Call setup_process() before displaying regrtest headers.

@vstinner
pythongh-135124: Change stdout errors in regrtest worker process
00c8fd3 
Set sys.stdout encoder error handler to backslashreplace in regrtest
to avoid UnicodeEncodeError when printing a traceback or any other
non-encodable character.

Move the code from the Regrtest class to setup_process().

Call setup_process() before displaying regrtest headers.
@vstinner vstinner added skip news needs backport to 3.13 bugs and security fixes needs backport to 3.14 bugs and security fixes labels Jun 4, 2025
@bedevere-app bedevere-app bot mentioned this pull request Jun 4, 2025
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serhiy-storchaka
serhiy-storchaka approved these changes Jun 4, 2025
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LGTM. 👍

@vstinner vstinner merged commit 3d396ab into python:main Jun 5, 2025
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@vstinner vstinner deleted the regrtest_stdout branch June 5, 2025 09:17
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miss-islington-app bot commented Jun 5, 2025

Thanks @vstinner for the PR 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14.
🐍🍒⛏🤖

miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Jun 5, 2025
@vstinner @miss-islington
pythongh-135124: Change stdout errors in regrtest worker process (pyt…
8c309a0 
…honGH-135138)

Set sys.stdout encoder error handler to backslashreplace in regrtest
workers to avoid UnicodeEncodeError when printing a traceback
or any other non-encodable character.

Move the code from the Regrtest class to setup_process().

Call setup_process() earlier, before displaying regrtest headers.
(cherry picked from commit 3d396ab)

Co-authored-by: Victor Stinner <vstinner@python.org>
miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Jun 5, 2025
@vstinner @miss-islington
pythongh-135124: Change stdout errors in regrtest worker process (pyt…
5ec6560 
…honGH-135138)

Set sys.stdout encoder error handler to backslashreplace in regrtest
workers to avoid UnicodeEncodeError when printing a traceback
or any other non-encodable character.

Move the code from the Regrtest class to setup_process().

Call setup_process() earlier, before displaying regrtest headers.
(cherry picked from commit 3d396ab)

Co-authored-by: Victor Stinner <vstinner@python.org>
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bedevere-app bot commented Jun 5, 2025

GH-135168 is a backport of this pull request to the 3.14 branch.

@bedevere-app bedevere-app bot removed the needs backport to 3.14 bugs and security fixes label Jun 5, 2025
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bedevere-app bot commented Jun 5, 2025

GH-135169 is a backport of this pull request to the 3.13 branch.

@bedevere-app bedevere-app bot removed the needs backport to 3.13 bugs and security fixes label Jun 5, 2025
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vstinner commented Jun 5, 2025

Merged, thanks for the review.

vstinner added a commit that referenced this pull request Jun 5, 2025
@miss-islington @vstinner
[3.14] gh-135124: Change stdout errors in regrtest worker process (GH…
285c69e 
…-135138) (#135168)

gh-135124: Change stdout errors in regrtest worker process (GH-135138)

Set sys.stdout encoder error handler to backslashreplace in regrtest
workers to avoid UnicodeEncodeError when printing a traceback
or any other non-encodable character.

Move the code from the Regrtest class to setup_process().

Call setup_process() earlier, before displaying regrtest headers.
(cherry picked from commit 3d396ab)

Co-authored-by: Victor Stinner <vstinner@python.org>
@serhiy-storchaka
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serhiy-storchaka commented Jun 5, 2025

Thank you for your fix!

vstinner added a commit that referenced this pull request Jun 5, 2025
@miss-islington @vstinner
[3.13] gh-135124: Change stdout errors in regrtest worker process (GH…
5a69d4f 
…-135138) (#135169)

gh-135124: Change stdout errors in regrtest worker process (GH-135138)

Set sys.stdout encoder error handler to backslashreplace in regrtest
workers to avoid UnicodeEncodeError when printing a traceback
or any other non-encodable character.

Move the code from the Regrtest class to setup_process().

Call setup_process() earlier, before displaying regrtest headers.
(cherry picked from commit 3d396ab)

Co-authored-by: Victor Stinner <vstinner@python.org>
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bedevere-bot commented Jun 5, 2025

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot AMD64 Windows Server 2022 NoGIL 3.14 (tier-1) has failed when building commit 285c69e.

What do you need to do:

  1. Don't panic.
  2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
  3. Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/1717/builds/206) and take a look at the build logs.
  4. Check if the failure is related to this commit (285c69e) or if it is a false positive.
  5. 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/1717/builds/206

Failed tests:

  • test_weakref

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

==

Click to see traceback logs 
remote: Enumerating objects: 15, done.        
remote: Counting objects:   6% (1/15)        
remote: Counting objects:  13% (2/15)        
remote: Counting objects:  20% (3/15)        
remote: Counting objects:  26% (4/15)        
remote: Counting objects:  33% (5/15)        
remote: Counting objects:  40% (6/15)        
remote: Counting objects:  46% (7/15)        
remote: Counting objects:  53% (8/15)        
remote: Counting objects:  60% (9/15)        
remote: Counting objects:  66% (10/15)        
remote: Counting objects:  73% (11/15)        
remote: Counting objects:  80% (12/15)        
remote: Counting objects:  86% (13/15)        
remote: Counting objects:  93% (14/15)        
remote: Counting objects: 100% (15/15)        
remote: Counting objects: 100% (15/15), done.        
remote: Compressing objects:  25% (1/4)        
remote: Compressing objects:  50% (2/4)        
remote: Compressing objects:  75% (3/4)        
remote: Compressing objects: 100% (4/4)        
remote: Compressing objects: 100% (4/4), done.        
remote: Total 8 (delta 7), reused 4 (delta 4), pack-reused 0 (from 0)        
From https://github.com/python/cpython
 * branch                    3.14       -> FETCH_HEAD
Note: switching to '285c69ea38f77949e7b8590e6d14bf23ad352561'.

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 285c69ea38f [3.14] gh-135124: Change stdout errors in regrtest worker process (GH-135138) (#135168)
Switched to and reset branch '3.14'

Could Not Find C:\Users\Administrator\buildarea\3.14.itamaro-win64-srv-22-aws.x64.nogil\build\Lib\*.pyc
The system cannot find the file specified.
Could Not Find C:\Users\Administrator\buildarea\3.14.itamaro-win64-srv-22-aws.x64.nogil\build\PCbuild\python*.zip

Could Not Find C:\Users\Administrator\buildarea\3.14.itamaro-win64-srv-22-aws.x64.nogil\build\PCbuild\python*.zip

Pranjal095 pushed a commit to Pranjal095/cpython that referenced this pull request Jul 12, 2025
@vstinner @Pranjal095
pythongh-135124: Change stdout errors in regrtest worker process (pyt…
39b0bec 
…hon#135138)

Set sys.stdout encoder error handler to backslashreplace in regrtest
workers to avoid UnicodeEncodeError when printing a traceback
or any other non-encodable character.

Move the code from the Regrtest class to setup_process().

Call setup_process() earlier, before displaying regrtest headers.
taegyunkim pushed a commit to taegyunkim/cpython that referenced this pull request Aug 4, 2025
@vstinner @taegyunkim
pythongh-135124: Change stdout errors in regrtest worker process (pyt…
f5a9c54 
…hon#135138)

Set sys.stdout encoder error handler to backslashreplace in regrtest
workers to avoid UnicodeEncodeError when printing a traceback
or any other non-encodable character.

Move the code from the Regrtest class to setup_process().

Call setup_process() earlier, before displaying regrtest headers.
Agent-Hellboy pushed a commit to Agent-Hellboy/cpython that referenced this pull request Aug 19, 2025
@vstinner @Agent-Hellboy
pythongh-135124: Change stdout errors in regrtest worker process (pyt…
94cb120 
…hon#135138)

Set sys.stdout encoder error handler to backslashreplace in regrtest
workers to avoid UnicodeEncodeError when printing a traceback
or any other non-encodable character.

Move the code from the Regrtest class to setup_process().

Call setup_process() earlier, before displaying regrtest headers.
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