Bug report

When I invoke a python launcher of version 3.11.0 with"py" command, a python launcher fails to start process.

Step to reproduce

1. Install python 3.11.0 with py launcher for all users.

2. Invoke"py" in command prompt.

3. I expect to launch a python interpreter, but got a error as below

   >"py"Unable to create process using 'C:\Python311\py"':  The system cannot find the file specified.

   Debug output when enable PYLAUNCHER_DEBUG

   >"py"argv0: pyversion: 3.11.0SearchInfo.originalCmdLine: "py"SearchInfo.restOfCmdLine:SearchInfo.executablePath: (null)SearchInfo.scriptFile: (null)SearchInfo.executable: py"SearchInfo.executableArgs: (null)SearchInfo.company: (null)SearchInfo.tag: (null)SearchInfo.oldStyleTag: FalseSearchInfo.lowPriorityTag: FalseSearchInfo.allowDefaults: FalseSearchInfo.allowExecutableOverride: FalseSearchInfo.windowed: FalseSearchInfo.list: FalseSearchInfo.listPaths: FalseSearchInfo.help: False -V:3.11          C:\Python311\python.exe -V:3.10          C:\Python310\python.exe -V:3.9           C:\Python39\python.exe -V:3.7           C:\Python37\python.exeenv.company: PythonCoreenv.tag: 3.11#about to run: C:\Python311\py"Unable to create process using 'C:\Python311\py"':  The system cannot find the file specified.

I think this error seems to be similar to#95285. If I invokepy or"py.exe", a python interpreter starts well as I expected.

>pyPython 3.11.0 (main, Oct 24 2022, 18:26:48) [MSC v.1933 64 bit (AMD64)] on win32Type "help", "copyright", "credits" or "license" for more information.>>>

>"py.exe"Python 3.11.0 (main, Oct 24 2022, 18:26:48) [MSC v.1933 64 bit (AMD64)] on win32Type "help", "copyright", "credits" or "license" for more information.>>>

In version 3.10.8, all of"py",py and"py.exe" start a python interpreter correctly.

Your environment

• CPython versions tested on: 3.11.0
• Operating system and architecture: Windows 10 (10.0.19045.2310)/amd64

Linked PRs

• gh-99442: Fix handling in py.exe launcher when argv[0] does not include a file extension #99542
• [3.11] gh-99442: Fix handling in py.exe launcher when argv[0] does not include a file extension (GH-99542) #99579