[3.12] gh-122573: Require Python 3.10 or newer for Windows builds (GH-122574) (#122677)

gpshead · msprotz · erlend-aasland · web-flow · commit 01db0e404de0 · 2024-08-06T18:53:32.000+02:00
gh-122573: Require Python 3.10 or newer for Windows builds (GH-122574) Match statements in tooling require a more recent Python. `Tools/cases_generator/*.py` Co-authored-by: Jonathan Protzenko <protz@microsoft.com> Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
diff --git a/Misc/NEWS.d/next/Windows/2024-08-01-10-55-15.gh-issue-122573.4-UCFY.rst b/Misc/NEWS.d/next/Windows/2024-08-01-10-55-15.gh-issue-122573.4-UCFY.rst
@@ -0,0 +1 @@
+The Windows build of CPython now requires 3.10 or newer.
diff --git a/PCbuild/find_python.bat b/PCbuild/find_python.bat
@@ -36,13 +36,15 @@
 @if "%_Py_EXTERNALS_DIR%"=="" (set _Py_EXTERNALS_DIR=%_Py_D%\..\externals)
 
 @rem If we have Python in externals, use that one
-@if exist "%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe" ("%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe" -Ec "import sys; assert sys.version_info[:2] >= (3, 8)" >nul 2>nul) && (set PYTHON="%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe") && (set _Py_Python_Source=found in externals directory) && goto :found || rmdir /Q /S "%_Py_EXTERNALS_DIR%\pythonx86"
+@if exist "%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe" ("%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe" -Ec "import sys; assert sys.version_info[:2] >= (3, 10)" >nul 2>nul) && (set PYTHON="%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe") && (set _Py_Python_Source=found in externals directory) && goto :found || rmdir /Q /S "%_Py_EXTERNALS_DIR%\pythonx86"
 
 @rem If HOST_PYTHON is recent enough, use that
-@if NOT "%HOST_PYTHON%"=="" @%HOST_PYTHON% -Ec "import sys; assert sys.version_info[:2] >= (3, 9)" >nul 2>nul && (set PYTHON="%HOST_PYTHON%") && (set _Py_Python_Source=found as HOST_PYTHON) && goto :found
+@if NOT "%HOST_PYTHON%"=="" @%HOST_PYTHON% -Ec "import sys; assert sys.version_info[:2] >= (3, 10)" >nul 2>nul && (set PYTHON="%HOST_PYTHON%") && (set _Py_Python_Source=found as HOST_PYTHON) && goto :found
 
 @rem If py.exe finds a recent enough version, use that one
-@for %%p in (3.11 3.10 3.9) do @py -%%p -EV >nul 2>&1 && (set PYTHON=py -%%p) && (set _Py_Python_Source=found %%p with py.exe) && goto :found
+@rem It is fine to add new versions to this list when they have released,
+@rem but we do not use prerelease builds here.
+@for %%p in (3.12 3.11 3.10) do @py -%%p -EV >nul 2>&1 && (set PYTHON=py -%%p) && (set _Py_Python_Source=found %%p with py.exe) && goto :found
 
 @if NOT exist "%_Py_EXTERNALS_DIR%" mkdir "%_Py_EXTERNALS_DIR%"
 @set _Py_NUGET=%NUGET%

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+The Windows build of CPython now requires 3.10 or newer.`