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Python 3.13.4 C-extension builds link against python313t.lib on non-threaded Python #135151

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cgohlke opened this issue Jun 4, 2025 · 6 comments
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Python 3.13.4 C-extension builds link against python313t.lib on non-threaded Python #135151

cgohlke opened this issue Jun 4, 2025 · 6 comments
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3.13 bugs and security fixes build The build process and cross-build OS-windows release-blocker type-bug An unexpected behavior, bug, or error

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@cgohlke
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cgohlke commented Jun 4, 2025 •
edited by bedevere-app bot
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Bug report

Bug description:

Same issue as #133779, except this applies to the Python 3.13.4 production release.

CPython versions tested on:

3.13

Operating systems tested on:

Windows

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@cgohlke cgohlke added the type-bug An unexpected behavior, bug, or error label Jun 4, 2025
@hugovk hugovk added OS-windows build The build process and cross-build 3.13 bugs and security fixes labels Jun 5, 2025
@zooba zooba self-assigned this Jun 5, 2025
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zooba commented Jun 5, 2025

Easiest fix is to do the same as we did in 3.14, and stop trying to be clever about the default value. Though I'm still not even totally clear on how we're getting the wrong one - I guess Wix is messing up search path order or something.

zooba added a commit to zooba/cpython that referenced this issue Jun 5, 2025
@zooba
pythongh-135151: Fix incorrect packaging of pyconfig.h in Windows ins…
78f3c77 
…taller
@bedevere-app bedevere-app bot mentioned this issue Jun 5, 2025
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@austinmatherne-wk austinmatherne-wk mentioned this issue Jun 5, 2025
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This was referenced Jun 5, 2025
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zooba added a commit that referenced this issue Jun 5, 2025
@zooba
[3.13] gh-135151: Fix incorrect packaging of pyconfig.h in Windows in…
728a881 
…staller (GH-135180)
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zooba commented Jun 5, 2025

Fixed now, and we are planning to release the next 3.13 update next week.

@zooba zooba closed this as completed Jun 5, 2025
@cgohlke
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cgohlke commented Jun 5, 2025

Thank you.

@finnagin finnagin mentioned this issue Jun 5, 2025
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Ouch... I had to revert to Python 3.13.3 for the time being. 😢

jdpurcell added a commit to jdpurcell/install-qt-action that referenced this issue Jun 7, 2025
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Workaround for Python 3.13.4 issue
ca5a2a5 
See python/cpython#135151
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zooba commented Jun 9, 2025

Yeah, it's a bad error, there should be a 3.13.5 later today with the fix. Trying to deal with the free threaded binaries has been nothing but pain, tbh.

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C/C++ build systems are so much FUN!

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3.13 bugs and security fixes build The build process and cross-build OS-windows release-blocker type-bug An unexpected behavior, bug, or error
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