Python window doesn't stay open when double-clicking the .py file

Question

I think I'm just to dumb because I've had very little experience with Python. But I can't seem to figure out why the terminal window closes a split second after opening.

import pyttsx3

engine = pyttsx3.init()

while True:
    text = input("What do I need to say? (Type 'exit' to end)\n")
    if text.lower() == 'exit':
        break
    engine.say(text)
    engine.runAndWait()

That's the whole thing. In the terminal in VS Code it works, of course, but not the when you just click the file. And I don't want to have to do it through a cmd terminal and looking up the file. Because I have other .py files that I can open by just double-clicking; but those don't show me how I did it there.