How to open a console application in python and enter text there through python?

Question

Python

How to open a console application in python and enter text there?
For example, I created a program in C ++ and I want to enter python code there, for example "1". And so that the user can see the console of this console application, or at least there is a command in the code that outputs the result to the python console. What code can create it?

Answer 1

pyautogui