CODEWITHSUNDEEP
pythoninputwhile-loop
fei
fei

Reputation: 13

How to end while loop when same value is inputted twice?

How can I write a while loop that asks for a user for input, and breaks when the same value is used twice in a row?

This is my current attempt, which tries to use len(set(word)) to get the previous word:

story = ""

while True:
    word = input("Give me a word: ")
    if word == "end" or word == len(set(word)):
        break
    story += word + " "

print(story)

Upvotes: 0

Views: 1609

Answers (3)

user16036731
user16036731

Reputation: 56

For twice in a row, I would just keep track of the previous word and break if it matches the new one.

story = ""
prev = ""

while True:
    word = input("Give me a word: ")

    if word == "end" or word == prev:
        break

    prev = word
    story += word + " "

print(story)

Upvotes: 3

Dipendra Pant
Dipendra Pant

Reputation: 395

'''Program to take single word as input from users, 
combine input word as a string and end the program
if any of the word in the string is repeated'''
import re
storyString = ""

def takeInput(storyString):
    global inputWord 
    inputWord = input("Give me a word: ")
    creatWordFromString(storyString)

def creatWordFromString(storyString):
    storyList = storyString.split()
    if inputWord in storyList:
        exit()
    else:
        storyList.append(inputWord)
        storyString =' '.join(storyList)
        print(storyString)
        takeInput(storyString)
    
takeInput(storyString)

Upvotes: 0

user15801675
user15801675

Reputation:

I would do this:

story = []
prev = ""

while True:

    word = input("Give me a word: ")

    if word == "end" or word == prev:

        break

    prev = word
    story.append(word+" ")

print(''.join(story))

Upvotes: 0

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