Problem I have with a while loop/boolean/or

[hg]

hg wrote:

> israphelr at googlemail.com wrote:
> 
>> Hi all.
>> 
>> I have a problem with some code :(
>> 
>> -----------
>> 
>> hint = raw_input("\nAre you stuck? y/n: ")
>> hint = hint.lower()
>> 
>> while (hint != 'n') or (hint != 'y'):
>>     hint = raw_input("Please specify a valid choice: ")
>> 
>> ---------------------------------------------
>> 
>> so everytime I run the program, and enter my choice as y or n, I'm
>> told to 'Please Specify a valid Choice Again' and can't get out of the
>> loop.
>> 
>> 
>> 
>> -----------
>> 
>> hint = raw_input("\nAre you stuck? y/n: ")
>> hint = hint.lower()
>> 
>> while (hint != 'n'):
>>     hint = raw_input("Please specify a valid choice: ")
>> 
>> ---------------------------------------------
>> 
>> As for here when I enter n, I can leave the while loop.
>> 
>> Anyway I can't put my finger on this, so I'd be real grateful if
>> someone could tell me what I've done wrong. Thanks.
>> (I have a guy feeling it's something really silly I'm overlooking...)
> 
> Hi,
> 
> Whatever hint is:
> (hint != 'n') or (hint != 'y')
> is always going to be true
> 
> as it cannot really be both at the same time
> 
> use "and" instead of "or"
> 
> hg


oops, meant to answer to the main post