# Pull it together

#1

def trip_cost(city, days):
return rental_car_cost(days) + hotel_cost(days) + plane_ride_cost(city)

can anyone tell me what I need to fix this?
I keep getting an error that says:

"Oops, try again. hotel_cost(1) raised an error: maximum recursion depth exceeded "

I tried some of the options to correct this on the forums but still keep getting an error.
there was a screen shot from someone who did the same thing but didn't get the error I was getting.

#2

can you post your full code? The problem is in your hotel_cost function (see error message), but you didn't post this function

#3

``````def hotel_cost(nights):
print hotel_cost(nights)
return hotel_cost(140)

def plane_ride_cost(city):
print plane_ride_cost("Tampa")
if city == "Charlotte":
return plane_ride_cost(183)
if city == "Tampa":
return plan_ride_cost(220)

def rental_car_cost(days):
cost = 40 * days
if days >= 7:
return cost - 50
elif days >= 3:
return cost -  20
return cost

def trip_cost(city, days):
return rental_car_cost(days) + hotel_cost(days) + plane_ride_cost(city)``````

#4

here:

``````def hotel_cost(nights):
print hotel_cost(nights)``````

you call the function inside the function, this known as recursive function calls, and unless you have a base case (which you don't) this goes on for infinity. (sort of like an infinity for loop but slightly different)

same for plane_ride_cost

#5

ok. when I entered it in the previous lessons it let me pass so I assumed all was right.
I got it now, thanks!

#6