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

David Montalvo
David Montalvo
6,937 Points
Posted by David Montalvo
David Montalvo
6,937 Points

Why this isn't working?

I'll try it several times, and also tried on a IDE but it doesn't work, can someone help me please.

even.py 
import random

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

start = 5

while start == 0:
  num = random.randint(1, 99)
  if even_odd(num):
    print("{} is even".format(num))
  else:
    print("{} is odd".format(num))

  start -= 1

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Your code isn't working because the loop never runs. You set start equal to 5 and then say to run the loop while start is equal to 0. Granted, you have a decrement operator in the loop, but because it never runs in the first place, you'll never see a result. Try this instead:

while start:

This will tell the loop to run while "truthy". And 5 is truthy, so it'll begin to run. Hope that helps you along the way!