Extended Zip Function with Fillvalues

This function is similar to the built-in zip() function, but it fills the shorter iterables with fillvalue until all iterables are exhausted if they are of unequal length.

Technology Stack : zip_longest

Code Type : Function

Code Difficulty : Intermediate

                
                    
def zip_longest(*args, fillvalue=None):
    """
    Like zip() but merges the rest of the iterables with fillvalues.
    """
    iterators = [iter(arg) for arg in args]
    while True:
        result = []
        for it in iterators:
            try:
                result.append(next(it))
            except StopIteration:
                result.append(fillvalue)
        yield tuple(result)