Python
Decorators: Wrapping Functions
A decorator takes a function, wraps it in another function, and gives the wrapper the original name. The @ symbol is shorthand for exactly that.
Decorators
Function decorators, decorators that take arguments, stacking and class decorators.
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Notes
Python
Practical Decorator Patterns
Registries, access control, deprecation, rate limiting and instrumentation - the decorator shapes that appear in real codebases, and how to test them.