Pairing aging distant pop stars

pairing.py

""" Check your work by running python -m doctest -v popstar.py """

def gen_popstar_name(last_name, street, last_food):
    """Your pop star name is your last name followed
    by the name of the street your grew up on followed
    by the last food you ate.
    The only whitespace should be between each of the 
    three parts, and the name should be uppercase.
    
    >>> gen_popstar_name("fox", "city lights", "bananas")
    FOX CITYLIGHTS BANANAS
    >>> gen_popstar_name("gray", "pomona", "rice triangle")
    GRAY POMONA RICETRIANGLE
    """
    return None

def calculate_age(year, month, day):
    """Returns the age according to a birthdate. Month and day are 1-indexed.

    >>> calculate_age(1984, 6, 24)
    36
    """
    return -1

def calculate_distance_from_campus(lat, lng):
    """Returns the rounded distance (km) between a lat/lng and Berkeley.
    You may want to make a generic distance calculation function first,
    using the Haversine formula.

    >>> calculate_distance_from_campus(43.0352286, -76.1742993)
    3895
    """
    return 0