Calculator Problem

88888 Dihedral dihedral88888 at gmail.com
Wed Feb 5 19:30:45 CET 2014


On Monday, February 3, 2014 5:16:44 AM UTC+8, Charlie Winn wrote:
> Hey Guys i Need Help , When i run this program i get the 'None' Under the program, see what i mean by just running it , can someone help me fix this
> 
> 
> 
> def Addition():
> 
>     print('Addition: What are two your numbers?')
> 
>     1 = float(input('First Number:'))
> 
>     2 = float(input('Second Number:'))
> 
>     print('Your Final Result is:', 1 + 2)
> 
> 
> 
> 
> 
> def Subtraction():
> 
>     print('Subtraction: What are two your numbers?')
> 
>     3 = float(input('First Number:'))
> 
>     4 = float(input('Second Number:'))
> 
>     print('Your Final Result is:', 3 - 4)
> 
> 
> 
> 
> 
> def Multiplication():
> 
>     print('Multiplication: What are two your numbers?')
> 
>     5 = float(input('First Number:'))
> 
>     6 = float(input('Second Number:'))
> 
>     print('Your Final Result is:', 5 * 6)
> 
> 
> 
> 
> 
> def Division():
> 
>     print('Division: What are your two numbers?')
> 
>     7 = float(input('First Number:'))
> 
>     8 = float(input('Second Number:'))
> 
>     print('Your Final Result is:', 7 / 8)
> 
> 
> 
> 
> 
> 
> 
> print('What type of calculation would you like to do?')
> 
> Question = input('(Add, Subtract, Divide or Multiply)')
> 
> if Question.lower().startswith('a'):
> 
>             print(Addition())
> 
> elif Question.lower().startswith('s'):
> 
>             print(Subtraction())
> 
> elif Question.lower().startswith('d'):
> 
>             print(Division())
> 
> elif Question.lower().startswith('m'):
> 
>             print(Multiplication())
> 
> else:
> 
>         print('Please Enter The First Letter Of The Type Of Calculation You Would Like To Use')
> 
> 
> 
> while Question == 'test':
> 
>         Question()

I suggest just get an input string 
of the  valid python expression type
first. Then just use exec and _ or 
eval to get the result.



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