Enhanced Zip Function with Fillvalue

This function behaves similarly to the built-in `zip` function, but will fill in missing values from the shorter iterables with `fillvalue` if they are exhausted.

Technology Stack : Built-in library

Code Type : Function

Code Difficulty : Intermediate

                
                    
def zip_longest(*args, fillvalue=()):
    """
    This function works like the built-in `zip` function, but will fill in missing values
    from the shorter iterables with `fillvalue` if they are exhausted.
    """
    iterators = [iter(arg) for arg in args]
    longest = max(iterators, key=len)
    for item in longest:
        for i, it in enumerate(iterators):
            try:
                yield next(it)
            except StopIteration:
                yield fillvalue