It keeps telling me that days are not defined


Traceback (most recent call last):
File "python", line 24, in
NameError: name 'days' is not defined

I am struggling to define the function, it says days is not defined, how do I solve this?

def hotel_cost(nights):
    # if it costs 140 a night
    return 140 * nights
def plane_ride_cost(city):
    if city == "Charlotte":
       return 183
    elif city == "Tampa":
       return 220
    elif city == "Pittsburgh":
       return 222
    elif city == "Los Angeles":
       return 475
def rental_car_costs(days): 
    price = 40 * days
    if days >= 7:
        price1 = price-50
        return price1
    elif days <7  and days >= 3:
        price2 = price-20
    return price2     



when calling the function, supply the numbers of days (which is an integer)


You want to know what the cost of the car is during the days it is rented. You are definitely on the right track, just some small changes needed to be done.

1) On your elif days < 7 and days >= 3: function, the instructions state the following: "Alternatively (elif), if you rent the car for 3 or more days, you get $20 off your total." It's not telling you to place an and operator. It's only asking for ">= 3" more days here.

2) On your function you have written:

def rental_car_costs(days):
    price = 40 * days
    if days >= 7:
        price1 = price - 50
        return price1

Let's clarify one thing here, and if this helps, it can then be applied to the next part of your other functions. As I mentioned at the very beginning you are wanting to know what the price would be for the car if it was rented for >= 7:days. So you are finding the new price and not a "price1" in the function. So if you can see that and makes sense, then you can apply the same idea to the next function.

Hope that helps!


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