Python question please include all steps and screenshot of code. Also please provide a docstring, and comments throughout the code, and test the given examples below. Thanks. Write a function digitsum() that takes a positive integer n as input and returns the sum of the digits of n. >>> digitsum(34) 7 >>> digitsum(934) 16 >>> digitsum(9314) 17

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Python question please include all steps and screenshot of code. Also please provide a docstring, and comments throughout the code, and test the given examples below. Thanks.

Write a function digitsum() that takes a positive integer n as input and returns the sum
of the digits of n.
>>> digitsum(34)
7
>>> digitsum(934)
16
>>> digitsum(9314)
17

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