How to launch a Python script on another PC

Hello, I started studying Python. I wondered how to start the script on another computer (both PC on Windows) without preparing the car (without installing Python)? All that I could find is a way of forming a file using py2exe.

I would like to know if there are alteative ways to spread the script (more “more“ correct ””) and what are the disadvantages of this approach.

there is no (perhaps not read) ways describing the transfer, maybe I just don’t understand the purpose of this. language?

python can help greatly if you need to automate something by working on a "" computer "computer. Or Web applications that also do not require Python prescribing to the final user's computer. I also understood: but you can also write a regular desktop program on it, optimizing critical places on C ++. But why write desktop programs if they cannot be given to the final user? Or usually in such cases, the installer is also added by the Python installer?

I will be especially grateful for the answer in the form of a link to the article (or a full -fledged resource), which will help me understand how Python is used in real development.