Python While continues to loop even if i insert the correct value

Question

I have this code:

choose = ""
while choose != "x" or choose != "X" or choose != "o" or choose != "O":
    choose = input("X or O? -> ")

but it continues even if the user insert x, X, o or O.

I am new at coding, anyone have an idea to make it work?

change all `or` to `and` and it should work – Andrej Kesely Dec 26 '19 at 09:29 — Andrej Kesely, Dec 26 '19 at 09:29

score 4 · Accepted Answer · answered Dec 26 '19 at 09:35

4

Try this

while choose not in [ "x" , "X" , "o" ,"O"]:

Any of 4 condition becoming true continues the loop. You can use 'and' insted of 'or'.

Instead, try using 'in', 'not in' keywords of Python.

answered Dec 26 '19 at 09:35

Roshan Birar

151
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score 0 · Answer 2 · answered Dec 26 '19 at 09:44

0

the logic combination is not what you want. [enter image description here][1] if you input O for choose, the condition choose != "x" is true, then while loops.

I guess what you want is:

    choose = ""
    while not(choose == "x" or choose == "X" or choose == "o" or choose == "O"):
        choose = input("X or O? -> ")

it works~/:D

answered Dec 26 '19 at 09:44

VYoungTheXiller

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by using `while not choose in "XxOo:"` may be better – VYoungTheXiller Dec 26 '19 at 09:46

Python While continues to loop even if i insert the correct value

2 Answers2