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Python Python Basics (2015) Letter Game App Even or Odd Loop

Posted by Julio Garcia
Julio Garcia
1,944 Points

problem with the challenge even_odd

I don't understand why is throwing this Error:

it looks like Task1 is no longer

even.py 
import random

start = 5

def even_odd(num):
    # If % 2 is 0, the number is even.
    # Since 0 is falsey, we have to invert it with not.
    return not num % 2

while start:
    if even_odd(num):
        print('{} is even'.format(num))
    else:
        print('{} is odd'.format(num))

start -= 1

1 Answer

Kenneth Love
STAFF
Kenneth Love
Treehouse Guest Teacher
Kenneth Love
Kenneth Love
Treehouse Guest Teacher

You're using a variable inside your while loop named num but you never created that variable.

Kenneth Love
Kenneth Love
Treehouse Guest Teacher
Kenneth Love
Kenneth Love
Treehouse Guest Teacher

You have one other problem, too (your loop will never end), but that's not causing the error.