Bug report
Bug description:
Using 3.15t installed with the MSI installer, but it happens with the pymanager build as well:
PS C:\Users\goldbaum> python3.15t.exe -VV
Python 3.15.0b1 free-threading build (tags/v3.15.0b1:f31a89b, May 7 2026, 13:47:35) [MSC v.1950 64 bit (AMD64)]
PS C:\Users\goldbaum> (Get-Command python3.15t.exe).path
C:\Users\goldbaum\AppData\Local\Programs\Python\Python315\python3.15t.exe
PS C:\Users\goldbaum> rm -r .venv
PS C:\Users\goldbaum> python3.15t.exe -m venv .venv
PS C:\Users\goldbaum> .\.venv\Scripts\python.exe -VV
Python 3.15.0b1 (tags/v3.15.0b1:f31a89b, May 7 2026, 13:53:53) [MSC v.1950 64 bit (AMD64)]
PS C:\Users\goldbaum> .\.venv\Scripts\python3.15t.exe -VV
Python 3.15.0b1 (tags/v3.15.0b1:f31a89b, May 7 2026, 13:53:53) [MSC v.1950 64 bit (AMD64)]
Doing the same thing with Python 3.14.5 from the MSI installer:
PS C:\Users\goldbaum> python3.14t.exe -VV
Python 3.14.5 free-threading build (tags/v3.14.5:5607950, May 10 2026, 10:44:56) [MSC v.1944 64 bit (AMD64)]
PS C:\Users\goldbaum> (Get-Command python3.14t.exe).path
C:\Users\goldbaum\AppData\Local\Programs\Python\Python314\python3.14t.exe
PS C:\Users\goldbaum> rm -r .venv
PS C:\Users\goldbaum> python3.14t -m venv .venv
PS C:\Users\goldbaum> .\.venv\Scripts\python.exe -VV
Python 3.14.5 free-threading build (tags/v3.14.5:5607950, May 10 2026, 10:44:56) [MSC v.1944 64 bit (AMD64)]
PS C:\Users\goldbaum> .\.venv\Scripts\python3.14t.exe -VV
Python 3.14.5 free-threading build (tags/v3.14.5:5607950, May 10 2026, 10:44:56) [MSC v.1944 64 bit (AMD64)]
Ping @zooba @zware @chris-eibl
CPython versions tested on:
3.15
Operating systems tested on:
Windows
Linked PRs
Bug report
Bug description:
Using 3.15t installed with the MSI installer, but it happens with the pymanager build as well:
Doing the same thing with Python 3.14.5 from the MSI installer:
Ping @zooba @zware @chris-eibl
CPython versions tested on:
3.15
Operating systems tested on:
Windows
Linked PRs