While loop only working for one condition

Asked Nov 25 '17 at 04:44

Active Nov 25 '17 at 04:49

Viewed 167 times

Im trying to validate the user's input so he/she only types in 'all' or 'sel' (not case sensitive). Might just be some syntax mistake im making.

choice=input('Type "all" or "sel": ')
choice=choice.lower()

while choice!=('sel' or 'all'):
    choice=input('Invalid input. Try again: ')
    choice=choice.lower()

This only works if I type in 'sel', but not 'all'.

asked Nov 25 '17 at 04:44

Spectre

This is a consequence of two separate misunderstandings - I've given you links that address both of them – cs95 Nov 25 '17 at 04:49
What is it that you are trying to do? – Kunal Mukherjee Nov 25 '17 at 04:50
while choice.lower() not in ('sel', 'all'): – Greg Mueller Nov 25 '17 at 04:51
('sel' or 'all') will always return 'sel' because 'sel' evaluates to true. so your statement says "while choice != 'sel'" – Greg Mueller Nov 25 '17 at 04:54
I realized my mistakes thanks guys! – Spectre Nov 25 '17 at 05:10

While loop only working for one condition

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