Creating a simple while loop

Question

How can I create a while loop that asks a user a fruit and if the fruit is 5 or less characters print i like (the fruit) otherwise print i do not like (the fruit), and when Stop is entered the program stops.

user_input = input("Enter a fruit ")

while user_input != "Stop":
  if user_input == "Stop":
    print("Goodbye")

  elif len(user_input) <= 5: 
    print("I like ", user_input)

  elif len(user_input) > 5: 
    print("I do not like ", user_input)

This is what I tried but the loop is continuous and does not stop until it times out. How can I easily fix this with the code I have already written?

You don't give a way for the user to enter another input.

Martheen
– Martheen

2022-09-09 14:14:01 +00:00
Commented Sep 9, 2022 at 14:14 — Martheen
– Martheen, Commented Sep 9, 2022 at 14:14

Some programmer dude · Accepted Answer · 2022-09-09 14:15:19Z

2

You never modify input inside the loop.

Either add another input() call at the end of the loop, or use an infinite loop with input() as the first statement in the loop:

# Infinite loop
while True:
    user_input = input("Enter a fruit (or Stop to end): ")

    if user_input == "Stop":
        print("Goodbye")
        # Break out of the loop
        break

    elif len(user_input) <= 5: 
        print("I like ", user_input)

    elif len(user_input) > 5: 
        print("I do not like ", user_input)

answered Sep 9, 2022 at 14:15

Some programmer dude

411k36 gold badges420 silver badges655 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Malik Elbadri · Accepted Answer · 2022-09-09 14:18:16Z

0

You need ask the user again at the end of the while loop to update the user_input variable, otherwise it will not be updated

user_input = input("Enter a fruit ")

while user_input != "Stop":

if user_input == "Stop": print("Goodbye")

elif len(user_input) <= 5: print("I like ", user_input)

elif len(user_input) > 5: print("I do not like ", user_input)

user_input = input("Enter a fruit ")

answered Sep 9, 2022 at 14:18

Malik Elbadri

951 silver badge7 bronze badges

Comments

NoDakker · Accepted Answer · 2022-09-09 14:22:54Z

Usually with a repetitive loop situation like this, usually you want to use a "while True:" scenario and then utilize a "break" statement to exit the "while" loop. Following is a snippet of code you might analyze.

while True:

    user_input = input("Enter a fruit ")

    if user_input == "Stop":
        print("Goodbye")
        break
        
    elif len(user_input) <= 5:
        print("I like", user_input)
        
    else:
        print("I do not like", user_input)

This provides a graceful exit after allowing the user to enter an indeterminant number of fruits.

@Una:~/Python_Programs/Fruit$ python3 Fruit.py 
Enter a fruit apple
I like apple
Enter a fruit pear
I like pear
Enter a fruit grapes
I do not like grapes
Enter a fruit Stop
Goodbye

Give that a try.

Collectives™ on Stack Overflow

Creating a simple while loop

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related