Extended Zip Functionality

This function provides similar functionality to the built-in zip function, but it fills the shorter iterable with a specified fillvalue if the iterables are of unequal length.

Technology Stack : Built-in library: itertools

Code Type : Function

Code Difficulty : Intermediate

                
                    
def zip_longest(*iterables, fillvalue=None):
    """
    Like zip(), but the shortest iterable is extended by fillvalues if needed.
    """
    # This function is using the built-in `zip()` function and the `itertools.zip_longest()` function
    from itertools import zip_longest

    def aggregate(lst):
        return [x for x in lst if x is not fillvalue]

    zipped = zip_longest(*iterables, fillvalue=fillvalue)
    for i in range(len(zipped)):
        zipped[i] = aggregate(zipped[i])

    return zipped

# JSON representation