Python 2 - How to make the script go to a specific line?

Question

This is kind of an extension to my last question, but I was wondering if it is possible to make the script go back to a specific line, if an event happens.

print "Type in 'Hello'"
typed = raw_input("> ")
if typed.lower() in ['hello', 'hi']:
    print "Working"
else:
    print "not working"

On the last line, if 'else' happens, can you make it so it restarts from line 2 again? Any help will be very greatly appreciated, thanks a lot!

Read about loops, you should find information in any beginner resource. — Vincent Savard, Aug 22 '12 at 17:02
Besides that, it's not clear what you want to know. Which last question are you referring to? — pemistahl, Aug 22 '12 at 17:03
Use a loop. [GOTO is often considered harmful](http://stackoverflow.com/questions/46586/goto-still-considered-harmful). — Mike Clark, Aug 22 '12 at 17:11
@PeterStahl He asked http://stackoverflow.com/questions/12077577/python-2-how-do-i-use-or an hour ago :) — halex, Aug 22 '12 at 17:13

score 6 · Answer 1 · answered Aug 22 '12 at 17:04

You could put your code in an endless loop that only exits if the right word is typed in:

print "Type in 'Hello'"
while True:
    typed = raw_input("> ")
    if typed.lower() in ['hello', 'hi']:
        print "Working"
        break
    else:
        print "not working"

score 3 · Answer 2 · answered Aug 22 '12 at 17:04

3

You can let the program lie in a loop till the correct input is given

while True: 
    print "Type in 'Hello'"
    typed = raw_input("> ")
    if typed.lower() in ['hello', 'hi']:
        break

answered Aug 22 '12 at 17:04

RedBaron

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score 0 · Answer 3 · answered Aug 22 '12 at 17:50

there is 2 ways to do it , one with while loop , and one with recursion the two answer before mine solved your problem with while loop , so i'd solve yours with recursion

def Inp():
    print "Type in 'Hello'"
    typed = raw_input("> ")
    if typed.lower() in ['hello', 'hi']:
       print "Working"
    else:
      print "not working"
      Inp()
Inp()

at the end just call the function Inp and it will continue asking for entering the value you want

Python 2 - How to make the script go to a specific line?

3 Answers3