I am just trying to find the proper correction to the error in my code. menu_items = ['Fried Eggrolls', 'Fried Crab Rangoon', 'Summer Rolls', 'Dumplings', 'Crispy Chicken Wings', 'Crispy Squid', 'Shrimp Tempura', 'Fried Daikon Cake', 'Wonton Soup', 'Vietnamese Sandwich'] menu_prices = [(7.50), (8.50), (6.50), (8.95), (11.50), (9.95), (9.95), (12.95), (8.95), (8.50)] ordered_items = [] ordered_quantity = [] subtotal = 0 def printitems(): for i in range(len(menu_items)): print(f"{i+1}. {menu_items[i]}: ${menu_prices[i]}") print() def orderitems(): item = eval(input(" Please Enter the Number of Your Selection: ")) ordered_items.append(item) quantity = input("Enter the quantity you would like to order: ") ordered_quantity.append(quantity) while item != -1 and quantity != 0: item = eval(input("Please Enter the Number of Your Selection or enter -1 if done: ")) ordered_items.append(item) quantity = input(" Enter the quantity you would like to order or enter 0 if done: ") ordered_quantity.append(quantity) ordered_items.remove(-1) def calculation(): for i in range(0,len(ordered_items)): print(menu_items[ordered_items[i]],ordered_quantity[i], menu_prices[ordered_items[i]]) subtotal += float(ordered_quantity[i]) * menu_prices[ordered_items[i]] def receipt(): print(format("\n Vietnamese Noodle House", ">20s")) print("---------------------------------") total = round(subtotal * 1.0875, 2) grandtotal = round(total * 1.15, 2) print("\n", "Order 1: ", round(subtotal, 2),"\n","\n", "******************************") print("\n", "Total after tax: ", total) print("Total with suggested tip of 15%: ", grandtotal) def main(): printitems() orderitems() calculation() receipt() main()
Control structures
Control structures are block of statements that analyze the value of variables and determine the flow of execution based on those values. When a program is running, the CPU executes the code line by line. After sometime, the program reaches the point where it has to make a decision on whether it has to go to another part of the code or repeat execution of certain part of the code. These results affect the flow of the program's code and these are called control structures.
Switch Statement
The switch statement is a key feature that is used by the programmers a lot in the world of programming and coding, as well as in information technology in general. The switch statement is a selection control mechanism that allows the variable value to change the order of the individual statements in the software execution via search.
I am just trying to find the proper correction to the error in my code.
menu_items = ['Fried Eggrolls', 'Fried Crab Rangoon', 'Summer Rolls', 'Dumplings', 'Crispy Chicken Wings', 'Crispy Squid', 'Shrimp Tempura', 'Fried Daikon Cake', 'Wonton Soup', 'Vietnamese Sandwich']
menu_prices = [(7.50), (8.50), (6.50), (8.95), (11.50), (9.95), (9.95), (12.95), (8.95), (8.50)]
ordered_items = []
ordered_quantity = []
subtotal = 0
def printitems():
for i in range(len(menu_items)):
print(f"{i+1}. {menu_items[i]}: ${menu_prices[i]}")
print()
def orderitems():
item = eval(input(" Please Enter the Number of Your Selection: "))
ordered_items.append(item)
quantity = input("Enter the quantity you would like to order: ")
ordered_quantity.append(quantity)
while item != -1 and quantity != 0:
item = eval(input("Please Enter the Number of Your Selection or enter -1 if done: "))
ordered_items.append(item)
quantity = input(" Enter the quantity you would like to order or enter 0 if done: ")
ordered_quantity.append(quantity)
ordered_items.remove(-1)
def calculation():
for i in range(0,len(ordered_items)):
print(menu_items[ordered_items[i]],ordered_quantity[i], menu_prices[ordered_items[i]])
subtotal += float(ordered_quantity[i]) * menu_prices[ordered_items[i]]
def receipt():
print(format("\n Vietnamese Noodle House", ">20s"))
print("---------------------------------")
total = round(subtotal * 1.0875, 2)
grandtotal = round(total * 1.15, 2)
print("\n", "Order 1: ", round(subtotal, 2),"\n","\n", "******************************")
print("\n", "Total after tax: ", total)
print("Total with suggested tip of 15%: ", grandtotal)
def main():
printitems()
orderitems()
calculation()
receipt()
main()
![subtotal += float (ordered_quantity[i]) menu_prices [ordered_items[i]]
UnboundLocalError: local variable 'subtotal' referenced before assignment](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F76003466-3adc-487c-8ac9-be909b8d3a3b%2F85f11976-3b05-42ca-96c8-f440fdb68389%2Fgzo9zrc_processed.png&w=3840&q=75)
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