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[3.10] gh-149776: Skip UDP Lite tests if it's not supported (#149777) by vstinner · Pull Request #153594 · python/cpython · GitHub

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[3.10] gh-149776: Skip UDP Lite tests if it's not supported (#149777) - #153594

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pablogsal merged 1 commit into
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Aug 10, 2026
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[3.10] gh-149776: Skip UDP Lite tests if it's not supported (#149777)#153594
pablogsal merged 1 commit into
python:3.10from
vstinner:udplite10

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vstinner commented Jul 11, 2026 •
edited by bedevere-app Bot
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Fix test_socket on Linux kernel 7.1 and newer: skip UDP Lite tests if it's not supported.

(cherry picked from commit 3cfc249)

vstinner added tests Tests in the Lib/test dir skip news labels Jul 11, 2026
bedevere-app Bot mentioned this pull request Jul 11, 2026
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vstinner commented Jul 11, 2026

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The Linux kernel of the "AMD64 Fedora Stable" buildbot was upgraded from 7.0 to 7.1, 3 days ago, so test_socket started to fail. The Linux kernel 7.1 removes the UDP Lite support. This PR backports a fix from the main branch.

vstinner commented Jul 11, 2026

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cc @hugovk

vstinner requested a review from a team as a code owner July 11, 2026 21:51

vstinner commented Jul 11, 2026

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Windows (x64): "Build" failed with:

Using "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\msbuild.exe" (found in the Visual Studio installation)
Installing Python via nuget...
The system cannot execute the specified program.
Cannot locate python.exe on PATH or as PYTHON variable 
Error: Process completed with exit code 1.

I tried to build Python 3.11 on my Windows 11 VM. The externals\nuget.exe program is corrupted. When I tried to run it manually, I get a popup saying that the file is damaged or cannot be read.

The program is downloaded by the following command from PCbuild/find_python.bat:

powershell.exe -Command Invoke-WebRequest https://aka.ms/nugetclidl -OutFile 'C:\victor\python\3.10\PCbuild\\..\externals\nuget.exe'

It seems like the nuget download URL is outdated. The URL was updated... yesterday by commit 106eb53. I backported this change as well.

vstinner commented Jul 11, 2026 •
edited by hugovk
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macOS: Oh, test_ssl failed with issue gh-151504:

======================================================================
ERROR: test_load_verify_cadata (test.test_ssl.ContextTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/runner/work/cpython/cpython/Lib/test/test_ssl.py", line 1509, in test_load_verify_cadata
    ctx.load_verify_locations(cadata=cacert_der)
ssl.SSLError: [ASN1: NOT_ENOUGH_DATA] not enough data (_ssl.c:4040)

======================================================================
ERROR: test_connect_cadata (test.test_ssl.SimpleBackgroundTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/runner/work/cpython/cpython/Lib/test/test_ssl.py", line 2152, in test_connect_cadata
    ctx.load_verify_locations(cadata=der)
ssl.SSLError: [ASN1: NOT_ENOUGH_DATA] not enough data (_ssl.c:4040)

vstinner commented Jul 11, 2026

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macOS: Oh, test_ssl failed with issue gh-151504:

It lacks the ssl fix backport: #153312.

vstinner mentioned this pull request Jul 11, 2026
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pythongh-149776: Skip UDP Lite tests if it's not supported (python#14…
6c99fb4 
…9777)

Fix test_socket on Linux kernel 7.1 and newer: skip UDP Lite tests if
it's not supported.

(cherry picked from commit 3cfc249)
pablogsal merged commit d4bea86 into python:3.10 Aug 10, 2026
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