To improve learning of decorators I've decided to find real-life examples of decorators in django framework.

To The Point

To be more precise in our adventure through decorators I decided to look for the most used python frameworks/libraries and find decorators that may be useful.

In Django documentation you can find View Decorators which explains view decorators. In the source-code of django you can find those decorator packages/modules:

• django/contrib/auth/decorators.py

  • users_passes_test

  • login_required

  • permission_required

• django/django/utils/decorators.py

  • method_decorator

  • decorator_from_middleware_with_args

  • decorator_from_middleware

  • make_middleware_decorator

• django/views/decorators/:

  • require_http_methods is a http-method decorator that uses @wraps - from which we learn that using @wraps at decorator inner-function prevents problem with passing __docs__ and __name__ of decorated function.

  • require_GET is a derivation of require_http_methods which includes only GET method as a parameter to that function. - also it changes __doc__ of the function to have different docs than in require_http_methods - for more readability.

Acknowledgements

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• ToThePoint

Related links

• GitHub - django/django: The Web framework for perfectionists with deadlines.
• View decorators | Django documentation | Django
• GitHub - vinta/awesome-python: A curated list of awesome Python frameworks, libraries, software and resources
• GitHub - uralbash/awesome-pyramid: A curated list of awesome Pyramid apps, projects and resources.
• 10.2. functools — Higher-order functions and operations on callable objects — Python 3.6.5rc1 documentation
• 10.2. functools — Higher-order functions and operations on callable objects — Python 3.6.5rc1 documentation

Thanks!

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