Generator Functions in Python

Generators are special functions in which execution does not happen all at once like in traditional functions. Instead,  generators can pause the execution and resume later from the same point.  

By definition, generators are functions that contains one or more yield statements. The yield statement is similar to the return statement except that when it is encountered,  it does not immediately cause the function to exit . Instead, it causes the function to suspend its execution and returns the given …

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