batch file for running python scipt in Windows shell

[DeaD_EyE]

The @ in a batch file is suppressing the echoing of the command.
Often in batch files the following pattern is used, to switch the echoing of commands globally off:

@echo off

py.exe is the program, which finds the latest Python Interpreter on well-known paths.
C:\yourpath\PythonScript.py is the program itself.
The %* is for arguments.

%* expands to the complete list of arguments passed to the script. You typically use it when you want to call some other program or script and pass the same arguments that were passed to your script. The %* modifier is a unique modifier that represents all arguments passed in a batch file.

The command pause will be executed after the python program has been finished. The command pause waits for a key press.
This is often used to see debug output from a broken program. If it was not run direct in a terminal, the new terminal will instantly close, and you've no time to read the Exceptions.