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+--- Thread: Functions (/thread-3870.html)
Functions - Anele - Jul-03-2017
my question here
my code hereI am new python user as i have embark to do programming, i have a task to complete but i having some challenges.
I have been asked to create four functions, Hotel Cost,Plane Cost, Car Rental and Holiday Cost
#The first function is - Hotel cost and as to take number of nights as an argument.
def hotel_cost(number_of_nights):
return(450 *(number_of_nights))
# The second function is - Plane Cost and as to take city as an argument and return cost of flight. use if/else if statement in the function to retrieve a price base on chosen city.
def plane_cost(city):
if city == "Joburg":
return(1500)
elif city == "Cape Town":
return(1800)
elif city == "Jozi":
return (1200)
else:
return(0)
#The third function is Car rental and as to take days as an argument.
def car_rental(days):
return(250 *(days))
#The last function is Holiday cost and as to take three arguments, number of nights,city,days, and return total cost of your holiday.
def holiday_cost(number_of_nights,city,days):
cost = (hotel_cost(number_of_nights) + plane_cost(city) + car_rental(days))
return ("Total Holiday Cost:" + str(cost))
#and the last task to do on this project is to print the value of the holiday function to see the result, and thats where i am getting lost. i have trying this code
print holiday_costPlease advise and assist as its also my first time to post i might made some mistake along.Thanks
RE: Functions - ichabod801 - Jul-03-2017
Please use python tags. I added them for you this time, but please review the BBCode tutorial link in my signature.
You need to call the holiday_cost function, just like you (?) called the hotel_cost, plane_cost, and car_rental functions within the holiday_cost function. For example:
print holiday(2, 'Joburg', 3)Would get you the cost of three days and two nights in Joburg.
RE: Functions - buran - Jul-03-2017
More or less, you have your functions right. The only problem is that you need to call holiday_cost when you print it
print holiday_cost(number_of_nights=6, city='Joburg', number of days=7)That is assuming 6 nights/7 days and travel to Joburg
Apart from that, three more notes:
1. It's better to use string formatting, instead of string concatenation
def holiday_cost(number_of_nights,city,days):
cost = (hotel_cost(number_of_nights) + plane_cost(city) + car_rental(days))
return "Total Holiday Cost: {}".format(cost)thus no need to convert cost to str2. I understand you have explicit requirement to use if/elif in plane cost function. If that was not the case, I would suggest using dict:
def plane_cost(city):
plane_costs = {"Joburg":1500, "Cape Town":1800, "Jozi":1200}
return plane_costs[city]or if you want to return 0 for missing city name (In my opinion that is not good idea, because is misleading, one should rise and error in case city name is unknown to you)def plane_cost(city):
plane_costs = {"Joburg":1500, "Cape Town":1800, "Jozi":1200
return plane_costs.get(city, 0)3. Based on your requirements, cost_of_holiday, should return the cost, so it should return number, not descriptive str. This way you can use the total cost anywhere else in your programe.g.
def holiday_cost(number_of_nights,city,days):
return (hotel_cost(number_of_nights) + plane_cost(city) + car_rental(days))
cost = holiday_cost(number_of_nights=6, city='Joburg', number of days=7)
print "Total Holiday Cost: {}".format(cost)
RE: Functions - Anele - Jul-04-2017
Thank you very much.