Python Launcher version action

[oleksis]

Ability to return the version of Python launcher running

• Current behavior: Returning only the python version

➜ py -3.10 --version
Python 3.10.9

• Expected behavior: Return the py version

➜ py --version
Python Launcher for Unix 1.0.0
Python 3.10.9

[oleksis]

Follow this oleksis/cpython@79a281f commit to the Python Launcher for Windows (API)

Behavior like:

➜ $env:PY_PYTHON='3.10'
 
➜ .\PCbuild\amd64\py_d.exe -V
Python launcher for Windows 3.11.1+
Python 3.10.9

➜ .\PCbuild\amd64\py_d.exe --version
Python launcher for Windows 3.11.1+
Python 3.10.9

➜ .\PCbuild\amd64\py_d.exe -V:3.10 -V
Python 3.10.9

➜ .\PCbuild\amd64\py_d.exe -V:3.10 --version
Python 3.10.9

Any adivice for contribution this to CPython upstream ?

[oleksis]

For keep backward-compatibility and use cases, we can use the --version-launcher option python/cpython#100829 (comment)

[brettcannon]

Going to keep the conversation focused in python/cpython#100829 for wider input.