Question

Write a python program that runs only on the command-line prompt. i.e. if you run this program on IDEL it would give you an error message. Name the program “buy.py.” Assume that this program is used by a departmental store to calculate your total price if you want to buy an extended warranty for your purchased Computer. The program takes two arguments at the command-line prompt: 1) the computer’s brand name, and 2) the price of the computer that you are buying. The user enters these arguments at the command-line prompt as shown below. The program will display the choice of the buyer and the price on the screen and asks the user if she/he want to buy an extended warranty. Then calculate the Total price and print it on the screen. Write the program according to the given examples of the program runs as shown below.

C:\Users\UserName>python buy.py Dell 1200

You are buying a Dell computer for $1200

Do you like to buy an extended warranty yes/no ? no

Total price : $1200

C:\Users\UserName>python buy.py Dell 1200

You are buying a Dell computer for $1200

Do you like to buy an extended warranty yes/no ? yes

1- $20 for 1 year plan

2- $30 for 2 years plan

Which plan you like 1 or 2 ? 1

Total price : $1220

C:\Users\UserName>python buy.py Dell 1200

You are buying a Dell computer for $1200

Do you like to buy an extended warranty yes/no ? yes

1- $20 for 1 year plan

2- $30 for 2 years plan

Which plan you like 1 or 2 ? 2

Total price : $1230

C:\Users\UserName>python buy.py Dell 1200

You are buying a Dell computer for $1200

Do you like to buy an extended warranty yes/no ? yesno

Invalid choice

C:\Users\UserName>python buy.py Dell 1200

You are buying a Dell computer for $1200

Do you like to buy an extended warranty yes/no ? yes

1- $20 for 1 year plan

2- $30 for 2 years plan

Which plan you like 1 or 2 ? 33

Invalid choice

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Note:

• You can run the program from any directory that is convenient for you. You don’t have to use the exact directory that is shown in the examples.
• Assume that the user enters the exact number and type of arguments.
• Your program should work exactly as described in the examples.

Answer 1

import sys
args = sys.argv
name = args[1]
price = float(args[2])
total=price
print('You are buying a {:} computer for ${:}'.format(name,price))
extend=input('Do you like to buy an extended warranty yes/no ?')
if extend == 'no':
    print('Total price : ${:}'.format(total))
elif extend=='yes':
    print('1- $20 for 1 year plan\n2- $30 for 2 years plan')
    plan=int(input('Which plan you like 1 or 2 ? '))
    if plan == 1:
        total+=20
        print('Total price : ${:}'.format(total))
    elif plan == 2:
        total+=30
        print('Total price : ${:}'.format(total))
    else:
        print('Invalid choice')
else:
    print('Invalid choice')