Recursion and "TypeError 'str' object is not callable"

Recursion is a programming technique where a function calls itself.

"TypeError 'str' object is not callable" means that you are attempting to call or execute a string as if it were a function, but strings are not callable 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.