printing_tuple_records.py

def  format_sort_records(data):
    """
    This function takes a list of tuples with three 
    fields, first name, last name and duration as argument.
    It will sort the list by last name and print a formatted 
    output.

    @param: list
    @return: str
    """

    from operator import itemgetter

    # Initialize variable.
    ls = list()
    # Sort data by last name.
    data = sorted(data, key=itemgetter(1,0))

    # Populate ls with formatted data.
    for first, last, time in data:
        ls.append("{:10} {:10} {:5.2f}".format(last, first, time))
    
    # Return each record in ls on a new line.
    return '\n'.join(ls)


def main():
    PEOPLE = [('Joe', 'Biden', 7.85), 
	('Vladimir', 'Putin', 3.626),
	('Jinping', 'Xi', 10.603)
    ]

    # Sort and print a formatted version of PEOPLE.
    print()
    print( format_sort_records(PEOPLE))
    print()


main()