zhmc command as an executable file

[andy-maier]

Provide some reasonable way to generate an executable file for the "zhmc" command, that can run directly in the operating system as a process.

Requirements:

• The approach must work for any HW and OS platform where Python is supported
• The result must be a single executable file (not a subdirectory with files)
• The executable file must behave like the current "zhmc" command
• The executable file must behave like a compiled executable in every aspect (e.g. run as a process without requiring a shell, run in a shell as a command, registered in a desktop as a command for file types, specifically it must not require a Python executable)
• The executable file must be built by the user from the Python distribution on Pypi (without requiring a repo clone)
• The build process for the executable file must be reasonably simple (because it is performed by the user)

Tools that create a binary by packaging Python runtime, the Python script and its dependent Python packages:

• py2exe - http://www.py2exe.org/index.cgi/Tutorial
• PyInstaller - https://pyinstaller.org/en/stable/
• PyOxidizer - https://github.com/indygreg/PyOxidizer
• cx_freeze - https://cx-freeze.readthedocs.io/en/stable/
• Nuitka - https://nuitka.net/
• zipapp - https://docs.python.org/3/library/zipapp.html

Tool comparisons:

• https://www.baeldung.com/linux/python-binary

Tools that compile Python into true binary code:

• Cython