how do i head to the beginning of a loop after a wrong answer in python?

Question

print("What's your name?")
name = input('Answer: ')

while False:
    if name == 'joshua':
        print("you're right")
    else:
        print("you're wrong")

input('the end\n')

set a boolean flag and make that the condition of your while loop. i.e `incorrectAnswer = true; while incorrectAnswer: if name == 'joshua': incorrectAnswer = false` — Jeremy Fisher, Feb 20 '20 at 19:16
Note: Avoid infinite loops. Add another condition to exit the loop. In this case maybe if guesses > 20. — Brian, Feb 20 '20 at 19:27

score 1 · Answer 1 · answered Feb 20 '20 at 19:17

1

With while False:, you never get inside the loop at all
Your problem with the loop body isn't getting back to the top; it is that you haven't specified a way to exit the loop.

answered Feb 20 '20 at 19:17

Scott Hunter

46,905
10
55
92

score 1 · Answer 2 · answered Feb 20 '20 at 19:19

You can set a boolean variable outside of the loop which will run basically forever until the answer is correct. You need to ask for input again in each iteration:

print("What's your name?")

unanswered = True

while unanswered:
    name = input('Answer: ')
    if name == 'joshua':
        unanswered = False
        print("you're right")
    else:
        print("you're wrong")

input('the end\n')

score 0 · Answer 3 · answered Feb 20 '20 at 19:18

Use while True: to loop infinitely, then break out of the loop when the answer is correct.

while True:
    print("What's your name?")
    name = input('Answer: ')
    if name == 'joshua':
        print("you're right")
        break
    else:
        print("you're wrong")

score 0 · Answer 4 · answered Feb 20 '20 at 19:18

0

Use break and continue inside your while loop. Control flow

while True:
    if name != "Joshua":
        continue
    break

answered Feb 20 '20 at 19:18

Errol

570
3
16

score 0 · Answer 5 · answered Feb 20 '20 at 19:19

That loop will never enter because its condition is always False. You'll need an extra variable to keep track. Start off by setting correct = False above the loop and changing your loop condition to not correct. Then, if they are correct, set correct = False.

You could also break on a right answer with True for the loop condition, but since I'm guessing you are new to programming, learning more traditional control flow would probably be better.

how do i head to the beginning of a loop after a wrong answer in python?

5 Answers5