To improve learning of decorators I've decided to find real-life examples of decorators in django framework. Check out my review on that!

What frameworks exists that supports REST-API within python ?

1. Django REST Framework

Quoting information from site:

Some reasons you might want to use REST framework:

- The Web browsable API is a huge usability win for your developers.
- Authentication policies including packages for OAuth1a and OAuth2.
- Serialization that supports both ORM …

Unit Tests why would you need this at all?

1. Unit tests and regression testing!

Gives you confidence of not breaking your previous features by creating new features.

2. Program some more!

When you create unit-tests you have to think-through on the source-code to be proper applied to the tests …