Python Launcher - Run Python Versions | Online Free DevTools by Hexmos

Run Python versions with Python Launcher for Windows. Execute scripts, start REPL sessions, and specify Python versions directly. Free online tool, no registration required.

py

Python Launcher for Windows that runs with specified Python version. See also: python. More information: https://docs.python.org/using/windows.html#python-launcher-for-windows.

  • Start a REPL (interactive shell), optionally with arguments supported by python (like -c, -m, etc.):

py {{python_arguments}}

  • Execute a specific Python file:

py {{path/to/file.py}}

  • Run specific Python version. If the version is missing, and PYLAUNCHER_ALLOW_INSTALL environment variable is set, auto-install via Microsoft Store or Winget:

py {{-2|-3.7|...}}

  • List installed Python versions:

py --list