Zip Longest Iterable Combiner

Combines the elements of several iterable objects into a single iterable. If the shortest iterable is exhausted, missing values are filled with fillvalue.

Technology Stack : itertools, collections.abc

Code Type : Function

Code Difficulty : Intermediate

                
                    
def zip_longest(*iterables, fillvalue=None):
    """
    Zips the elements of several iterables together into a single iterable.
    The iterables are treated as queues, and as soon as the shortest of the
    iterables is exhausted, missing values are filled-in with fillvalue.
    """
    from itertools import zip_longest as _zip_longest
    from itertools import chain
    import collections.abc

    def is_iterable(obj):
        try:
            iter(obj)
            return True
        except TypeError:
            return False

    # Check if all provided arguments are iterable
    for iterable in iterables:
        if not is_iterable(iterable):
            raise ValueError("All arguments must be iterable")

    # Check if all provided arguments have the same length
    lengths = [len(iterable) for iterable in iterables if hasattr(iterable, '__len__')]
    if len(set(lengths)) > 1:
        raise ValueError("All provided iterables must have the same length")

    return _zip_longest(*iterables, fillvalue=fillvalue)