Enhanced Zip Function with Fillvalue Support

The function implements a similar function to zip, but it can use fillvalue to fill in missing values when the length of iterators is inconsistent.

Technology Stack : itertools

Code Type : Function

Code Difficulty : Intermediate

                
                    
def zip_longest(*args, fillvalue=None):
    iters = [iter(arg) for arg in args]
    while True:
        result = []
        for i, it in enumerate(iters):
            try:
                result.append(next(it))
            except StopIteration:
                result.append(fillvalue)
        if len(result) == 1 and result[0] == fillvalue:
            break
        yield tuple(result)