A decorator that takes arguments in Python

Python interview exercise on Functions & Decorators, difficulty 3 of 3. Solve it in the editor beside a worked example; the tests run the moment you do.

Write retry(attempts), used as @retry(3). The decorated function is called until it returns without raising or it has been tried attempts times; the last exception is then re-raised. A decorator with arguments is a function that returns a decorator: three levels of def.

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