Console crash after boot.

[friendlymegalomaniac]

I am currently using python 3.6.5 with notepad++ for a text editor. I have tryed to create several programs but whenever the console boots it crashes. Even with a simple hello world, it always crashes. Any help?
Note: the Hello World program I have authored is like so:
print('Hello World')
any help would be appriciated. Many thanks.

[wavic]

Open the cmd and run the script from there.

python script.py

If you run the script by double-clicking on it the console opens, the script is executed and the console closes. It happens too fast.