Django has good tutorials, I don't know about building "one app" though. I'm sure you can find some of lesser quality; Hartl's tutorial is one of the very best.
If you don't mind drawing out your learning process, you could walk through Hartl's tutorial and do the equivalent in Python (probably with much help from google). So you couldn't use his code examples, but you could set up the same DB structure, the same types of tests, etc, and hit all the important parts of the web dev process.
If you don't mind drawing out your learning process, you could walk through Hartl's tutorial and do the equivalent in Python (probably with much help from google). So you couldn't use his code examples, but you could set up the same DB structure, the same types of tests, etc, and hit all the important parts of the web dev process.
Edit: found this in another comment below. Just thought I'd include it in case you gloss over it! https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial...