Incorrect minimum version of Python for Windows build bootstrapping

Bug report

Bug description:

Python now requires 3.10 to build itself, because match case statements have begun proliferating in the cpython repository. However, the Windows build still thinks 3.9 is enough, which results in a build error on a standard Visual Studio 2022 environment.

CPython versions tested on:

CPython main branch

Operating systems tested on:

No response

Linked PRs

Hello!
I can build CPython on Windows using the 3.9 version. Can you please show the error?

I can reproduce it by building CPython with the --experimental-jit option:

  Regenerate Global Objects
  # not changed: C:\Users\KIRILL-1\CLionProjects\cpython\Include\internal\pycore_global_strings.h
  # not changed: C:\Users\KIRILL-1\CLionProjects\cpython\Include\internal\pycore_runtime_init_generated.h
  # not changed: C:\Users\KIRILL-1\CLionProjects\cpython\Include\internal\pycore_unicodeobject_generated.h
  # not changed: C:\Users\KIRILL-1\CLionProjects\cpython\Include\internal\pycore_global_objects_fini_generated.h
  Traceback (most recent call last):
    File "C:\Users\KIRILL-1\CLionProjects\cpython\Tools\jit\build.py", line 8, in <module>
      import _targets
    File "C:\Users\KIRILL-1\CLionProjects\cpython\Tools\jit\_targets.py", line 275
      match relocation:
            ^
  SyntaxError: invalid syntax

So it's actually related only to the jit build. The default build is not affected.

C:\Users\protz\Desktop\cpython\PCbuild>build
Using py -3.9 (found 3.9 with py.exe)
...
  Regenerate keyword.py
  Regenerate Global Objects
  # not changed: C:\Users\protz\Desktop\cpython\Include\internal\pycore_global_strings.h
  # not changed: C:\Users\protz\Desktop\cpython\Include\internal\pycore_runtime_init_generated.h
  # not changed: C:\Users\protz\Desktop\cpython\Include\internal\pycore_unicodeobject_generated.h
  # not changed: C:\Users\protz\Desktop\cpython\Include\internal\pycore_global_objects_fini_generated.h
  Regenerate cases
  Traceback (most recent call last):
    File "C:\Users\protz\Desktop\cpython\Tools\cases_generator\opcode_id_generator.py", line 8, in <module>
      from analyzer import (
    File "C:\Users\protz\Desktop\cpython\Tools\cases_generator\analyzer.py", line 724
      match part:
            ^
  SyntaxError: invalid syntax
C:\Users\protz\Desktop\cpython\PCbuild\regen.targets(93,5): error MSB3073: The command "py -3.9 Tools\cases_generator\o
pcode_id_generator.py Python\bytecodes.c" exited with code 1. [C:\Users\protz\Desktop\cpython\PCbuild\pythoncore.vcxpro
j]

Build FAILED.

C:\Users\protz\Desktop\cpython\PCbuild\regen.targets(93,5): error MSB3073: The command "py -3.9 Tools\cases_generator\o
pcode_id_generator.py Python\bytecodes.c" exited with code 1. [C:\Users\protz\Desktop\cpython\PCbuild\pythoncore.vcxpro
j]
    0 Warning(s)
    1 Error(s)

This is without the --jit option -- I believe my other PR touched something related to global objects, which in turn triggered the invocation of cases_generator/opcode_id_generator.py, which failed, on the default build.

This is the other PR: #119316

This is without the --jit option -- I believe my other PR touched something related to global objects, which in turn triggered the invocation of cases_generator/opcode_id_generator.py, which failed, on the default build.

You're right.

gh-122573: Require Python 3.10 or newer for Windows builds (GH-122574)

pythongh-122573: Require Python 3.10 or newer for Windows builds (pyt…

backports pending and assigned, closing. thanks!

[3.13] gh-122573: Require Python 3.10 or newer for Windows builds (GH…

[3.12] gh-122573: Require Python 3.10 or newer for Windows builds (GH…

pythongh-122573: Require Python 3.10 or newer for Windows builds (pyt…

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Incorrect minimum version of Python for Windows build bootstrapping #122573

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CPython versions tested on:

Operating systems tested on:

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Incorrect minimum version of Python for Windows build bootstrapping #122573

Description

Bug report

Bug description:

CPython versions tested on:

Operating systems tested on:

Linked PRs

Activity

Eclips4 commented on Aug 1, 2024

Eclips4 commented on Aug 1, 2024

msprotz commented on Aug 1, 2024

msprotz commented on Aug 1, 2024

msprotz commented on Aug 1, 2024

Eclips4 commented on Aug 1, 2024

gpshead commented on Aug 5, 2024

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