Combining Iterables with Fillvalue

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Code introduction


This function combines multiple iterable objects (such as lists or tuples) into tuples, filling in missing values with fillvalue if the iterables are of uneven length.


Technology Stack : itertools

Code Type : Function

Code Difficulty : Intermediate


                
                    
def zip_longest(*iterables, fillvalue=None):
    # This function takes any number of iterables (like lists or tuples) and returns a list of tuples, 
    # using each element from the iterables as the corresponding element of the tuples. 
    # If the iterables are of uneven length, missing values are filled in with the fillvalue.
    
    from itertools import zip_longest

    # Example usage
    list1 = [1, 2, 3]
    list2 = [4, 5]
    list3 = [6, 7, 8, 9]
    
    result = zip_longest(list1, list2, list3, fillvalue=0)
    
    return list(result)                
              
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