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

Mit Sengupta
Mit Sengupta
13,823 Points
Posted by Mit Sengupta
Mit Sengupta
13,823 Points

What am I doing wrong here? Do I need to call the even_odd function in the while loop?

Here is my code :

 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 True:
  start = random.randint(1, 99)
  for num in start:
    if num == None:
      break
    elif num % 2 == 0:
    print("{} is even".format(num)) 
    elif num not % 2 == 0:
    print("{} is odd".format(num))
    start -= 1

3 Answers

Andreas cormack
.a{fill-rule:evenodd;}techdegree seal-36
Andreas cormack
Python Web Development Techdegree Graduate 33,011 Points

Hi Mit

Yes you need to call the even_odd function, you also dont need a for loop. Break the while loop when start becomes 0 or falsey.

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 True:
  rand_number = random.randint(1,99)
  if start == 0:
    break;
  elif even_odd(rand_number):
    print("{} is even".format(rand_number))
  else:
    print("{} is odd".format(rand_number))
  start-=1
Justo Montoya
Justo Montoya
3,799 Points
Justo Montoya
Justo Montoya
3,799 Points

hey i'm having a bit of trouble with this too. my code is :

    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

#I don't understand why it isn't working.
#My understanding of logic statements is that if a variable is not equal to 0 (start!=0) then its "truthy".
Johnathan Young
PLUS
Johnathan Young
Courses Plus Student 1,573 Points
Johnathan Young
Johnathan Young
Courses Plus Student 1,573 Points

hey Justo. I was having the same issue. Turns out its the periods we have at the end of our "is even." and "is odd." statements. If you remove those ("is even" and "is odd") it will work perfectly.

Sharla Kew
Sharla Kew
15,356 Points

Sweet lord, I thought I was losing my mind. Thank you.

Andreas cormack
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Andreas cormack
Python Web Development Techdegree Graduate 33,011 Points
Andreas cormack
.a{fill-rule:evenodd;}techdegree seal-36
Andreas cormack
Python Web Development Techdegree Graduate 33,011 Points

Hi Justo

I ran your code in workspaces and it runs perfectly .

98 is even.                                                                                                                
16 is even.                                                                                                                
51 is odd.                                                                                                                 
2 is even.                                                                                                                 
59 is odd.

Your understanding is correct, There might be a bug in the challenge, may be Kenneth Love can help here.