Recursion and "TypeError 'str' object is not callable" [closed]

Recursion is a programming technique in which a function calls itself. "TypeError 'str' object is not callable" means that you are trying to call a string as if it were a function, which is not allowed in Python.

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TypeError 'str' object is not callable
The TypeError: 'str' object is not callable error message is a common Python error that occurs when you try to call a method or function on a string object.