Here you will see how you can simply run a hello.py script on Windows.
1. Check if you have Python installed. Install from https://www.python.org/downloads/ if necessary.
2. On the Dekstop create a file named hello.py
3. Inside this file we will write our Python "hello world". We will do this by adding print("Hello World!") in the file contents
4. After we save the changes we will have to run this script. We will open a CMD
5. In the CMD we will call the script like this: path_to_python.exe path_to_hello.py
For UNIX systems , first check if you have python3 installed ( get it using apt/yum/brew ) and then