flask.cli.NoAppException: Could not import 'app'

[SpongeB0B]

Hi @kazu755 ,

No problem we will most certainly make your project run :)

I see a lot of bad Flask examples/tutorial on the WWW especially the launching part.

If you start with Flask I will recommend you to start from scratch with the official documentation
https://flask.palletsprojects.com/en/2.2.x/quickstart/

---
You should not put the HTML code in your .py Python/Flask file
Line 10 to 56. instead you want to use template file -->
https://flask.palletsprojects.com/en/2.2...-templates
You might find better documentation about Jinja "templating" (it's damn useful !)

---
You don't launch by Flask file.py

but trough Python

so either run.py (if python is associated with .py file)
or something like

cd C:\users\username\documents 
C:\something\Python\Python3.11.exe run.py

Cheer,