Python Terminal VSCode Problem

Hello, I have recently started my Python Beginner’s Course in Code With Mosh, I have been really enjoying it, however I have a problem with running code. I can run code successfully in the output window, using the shortcut “control option n” (in mac it is like this), however for some programmes that require me to use the input function, I have to run my code using the VS Code terminal. However, whenever I type “python3 app.py”, it will come up with the following message:

/Library/Frameworks/Python.framework/Versions/3.9/bin/python3: can’t open file ‘/Users/(my user name that I can’t tell u :frowning: )/app.py’: [Errno 2] No such file or directory

Does anybody know how to fix this and what is going on with terminal?

Python cannot find your code file. Are you sure that your code file, app.py, is in the current folder, or somewhere else in your path?