Intro to programming help with python

[Avé]

I'm trying to write a simple program using "while" statements. I've done most of the work, I just can't get it to run properly. Here is the assignment:

Write a program that will calculate the cost of purchasing a meal. This program will include decisions and loops. Details of the program are as follows:
• Your menu items only include the following food with accompanied price:
o Yum Yum Burger = .99
o Grease Yum Fries = .79
o Soda Yum = 1.09
• Allow the user of the program to purchase any quantity of these items on one order.
• Allow the user of the program to purchase one or more types of these items on one order.
• After the order is placed, calculate total and add a 6% sales tax.
• Print to the screen a receipt showing the total purchase price.

And this is what I have:

Spoiler: show

def main():
endProgram = "No"
while endProgram == "No":
endOrder = "No"
amountBurger = 0
amountFry = 0
amountSoda = 0
tax = 0
total = 0
while endOrder == "No":
totalBurger = getBurger()
totalFry = getFry()
totalSoda = getSoda()
endOrder = raw_input("End the order? (Yes or No) ")
priceTotal = calcTotal(totalBurger, totalFry, totalSoda)
printTotal(priceTotal)
endProgram = raw_input("Closing time? (End the program? Yes or No)")

def getBurger():
amountBurger = input("How many burgers? (0 if none) ")
priceBurger = amountBurger * .99
taxBurger = priceBurger * .06
totalBurger = priceBurger + taxBurger
return getBurger
def getFry():
amountFry = input("How many fries? (0 if none) ")
priceFry = amountFry * .79
taxFry = priceFry * .06
totalFry = priceFry + taxFry
return totalFry
def getSoda():
amountSoda = input("How many Sodas? (0 if none) ")
priceSoda = amountSoda * 1.09
taxSoda = priceSoda * .06
totalSoda = priceSoda + taxSoda
return totalSoda
def calcTotal(totalBurger, totalFry, totalSoda):
priceTotal = totalBurger + totalFry + totalSoda
return priceTotal
def printTotal(priceTotal):
print "Total: $",priceTotal
return printTotal
main()

And this is my error:

Traceback (most recent call last):
File "K:\Prog\Lab 5-5.py", line 43, in <module>
main()
File "K:\Prog\Lab 5-5.py", line 15, in main
priceTotal = calcTotal(totalBurger, totalFry, totalSoda)
File "K:\Prog\Lab 5-5.py", line 38, in calcTotal
priceTotal = totalBurger + totalFry + totalSoda
TypeError: unsupported operand type(s) for +: 'function' and 'float'

Any suggestions how to solve this? I don't even know what this type of coding is called so Google isn't too helpful, and the book includes nothing on using python.

[Mafai]

are you calling main at the bottom to start it? i think this needs to be at the top, or else it is just part of the last function you declared (calctotal). anyway, it looks to me like you are trying to do math on strings. so try this...

main()

def main():
endProgram = "No"
while endProgram == "No":
endOrder = "No"
amountBurger = 0
amountFry = 0
amountSoda = 0
tax = 0
total = 0
while endOrder == "No":
totalBurger = getBurger()
totalFry = getFry()
totalSoda = getSoda()
endOrder = raw_input("End the order? (Yes or No) ")
priceTotal = calcTotal(totalBurger, totalFry, totalSoda)
printTotal(priceTotal)
endProgram = raw_input("Closing time? (End the program? Yes or No)")

def getBurger():
amountBurger = input("How many burgers? (0 if none) ")
priceBurger = int(amountBurger) * .99
taxBurger = int(priceBurger) * .06
totalBurger = int(priceBurger) + int(taxBurger)
return getBurger

def getFry():
amountFry = input("How many fries? (0 if none) ")
priceFry = int(amountFry) * .79
taxFry = int(priceFry) * .06
totalFry = int(priceFry) + int(taxFry)
return totalFry

def getSoda():
amountSoda = input("How many Sodas? (0 if none) ")
priceSoda = int(amountSoda) * 1.09
taxSoda = int(priceSoda) * .06
totalSoda = int(priceSoda) + int(taxSoda)
return totalSoda

def calcTotal(totalBurger, totalFry, totalSoda):
priceTotal = int(totalBurger) + int(totalFry) + int(totalSoda)
return priceTotal
def printTotal(priceTotal):
print "Total: $",priceTotal
return printTotal

[Mafai]

i just noticed python automatically executes main on run, so i believe u can remove that top main()

ill check back after lunch.

[Avé]

Getting a different error now.

File "K:\Prog\Lab 5-5.py", line 15, in main
priceTotal = int(totalBurger) + int(totalFry) + int(totalSoda)
TypeError: int() argument must be a string or a number, not 'function'

[Mafai]

try this, your already setting pricetotal in the calctotal function, no need to do pricetotal = calctotal...

def main():
endProgram = "No"
while endProgram == "No":
endOrder = "No"
amountBurger = 0
amountFry = 0
amountSoda = 0
tax = 0
total = 0
while endOrder == "No":
totalBurger = getBurger()
totalFry = getFry()
totalSoda = getSoda()
endOrder = raw_input("End the order? (Yes or No) ")
calcTotal(totalBurger, totalFry, totalSoda)
printTotal(priceTotal)
endProgram = raw_input("Closing time? (End the program? Yes or No)")

def getBurger():
amountBurger = input("How many burgers? (0 if none) ")
priceBurger = int(amountBurger) * .99
taxBurger = int(priceBurger) * .06
totalBurger = int(priceBurger) + int(taxBurger)
return getBurger

def getFry():
amountFry = input("How many fries? (0 if none) ")
priceFry = int(amountFry) * .79
taxFry = int(priceFry) * .06
totalFry = int(priceFry) + int(taxFry)
return totalFry

def getSoda():
amountSoda = input("How many Sodas? (0 if none) ")
priceSoda = int(amountSoda) * 1.09
taxSoda = int(priceSoda) * .06
totalSoda = int(priceSoda) + int(taxSoda)
return totalSoda

def calcTotal(totalBurger, totalFry, totalSoda):
priceTotal = int(totalBurger) + int(totalFry) + int(totalSoda)
return priceTotal
def printTotal(priceTotal):
print "Total: $",priceTotal
return printTotal

[Avé]

It's working now, I appreciate the help.

[Mafai]

was just looking thru it again, you can just call all the functions without assigning them to a variable, since the functions itself is doing it. also your getburger is returning it to the wrong variable...

def main():
endProgram = "No"
while endProgram == "No":
endOrder = "No"
amountBurger = 0
amountFry = 0
amountSoda = 0
tax = 0
total = 0
while endOrder == "No":
getBurger()
getFry()
getSoda()
endOrder = raw_input("End the order? (Yes or No) ")
calcTotal(totalBurger, totalFry, totalSoda)
printTotal(priceTotal)
endProgram = raw_input("Closing time? (End the program? Yes or No)")

def getBurger():
amountBurger = input("How many burgers? (0 if none) ")
priceBurger = int(amountBurger) * .99
taxBurger = int(priceBurger) * .06
totalBurger = int(priceBurger) + int(taxBurger)
return totalBurger

def getFry():
amountFry = input("How many fries? (0 if none) ")
priceFry = int(amountFry) * .79
taxFry = int(priceFry) * .06
totalFry = int(priceFry) + int(taxFry)
return totalFry

def getSoda():
amountSoda = input("How many Sodas? (0 if none) ")
priceSoda = int(amountSoda) * 1.09
taxSoda = int(priceSoda) * .06
totalSoda = int(priceSoda) + int(taxSoda)
return totalSoda

def calcTotal(totalBurger, totalFry, totalSoda):
priceTotal = int(totalBurger) + int(totalFry) + int(totalSoda)
return priceTotal
def printTotal(priceTotal):
print "Total: $",priceTotal
return printTotal

[Avé]

Ah yes, thank you.

[char]

What did you guys do to make this source work? I to am taken the same class and this messed up Yum Yum is bs, I never want a burger ever