Code Problem


I can't get my trip to sum up properly. The error says for (Tampa, 6) the 'int' is not iterable. Help!

def hotel_cost(nights):
    return 140 * nights
def plane_ride_cost(city):
    if city == ("Charlotte"):
        return 183
    elif city == ("Tampa"):
        return 220
    elif city == ("Pittsburgh"):
        return 222
        return 475
def rental_car_cost(days):
    if days >= 7:
        return (40 * days) - 50
    elif days >= 3:
        return (40 * days) - 20
    elif days < 3:
        return (40 * days)
        return 0       
def trip_cost(city, days):
    sum(hotel_cost(days) + plane_ride_cost(city) + rental_car_cost(days))
    return trip_cost


You're doing something similar to: sum(3), sum will try to iterate through its argument, computing the sum of its elements. 3 can't be iterated through.


so is sum the wrong element? should it be 'add'?


Why would you compute the sum of a single value? Consider what effect the +
operator has and what value you are giving as an argument to the sum function


Got it! I did a simple return with addition of the elements and it ran. Thanks!


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