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Enumerate a Generator With a Running Total in Python

A generator that yields each element with its index and a cumulative sum, letting you track a running total as you iterate.

generators enumerate running-total

Python

def running_total_enum(iterable):
    """Yields (index, item, running_total) for each element."""
    total = 0
    for index, item in enumerate(iterable):
        total += item
        yield index, item, total

if __name__ == "__main__":
    numbers = [10, 20, 30, 40, 50]
    for idx, value, running_sum in running_to…

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