Calculator program

Question

Hey I was testing out case insensitive options for a calculator

so i did the following

options = input ("What would you like to do? Add(a), Subtract (s), Multiply (m): ")

if options.lower() == "a":
answer = x + y
print answer
elif options.lower() == "s"
answer = x - y
print answer

and so on.

When i test it without the a, s, and m defined it says "nameError 'a' is not defined" but when i define them like a = "a" etc it works

but the thing is when i do that caps dont work

Answer 1

Have you tried defining like
a = "a, A"

Answer 2

options = input ("What would you like to do? Add(a), Subtract (s), Multiply (m): ")

options=str(options) #changed to string
if options.lower() == "a":
answer = x + y
print (answer)
elif options.lower() == "s":
answer = x - y
print (answer)

Answer 3

both of those unfortunately didn't work :(

but thanks for your help guys @nitesh and @tony

Answer 4

found out why. in python 2 you gotta put raw_input

so options = input("crap here")

would be

options = raw_input("crap here")

Answer 5

Wait, how on earth is it possible for 'a' to be an identifier ? o_O

EDIT: even with Python 2 I would think the options.lower() would raise a TypeError rather than a NameError...