[Tutor] Paper Rock Scissors game - User's choice not returned properly

Steven D'Aprano steve at pearwood.info
Tue Nov 1 00:10:05 CET 2011


Alan Gauld wrote:
> On 31/10/11 20:22, Peter Otten wrote:
>> Alan Gauld wrote:
>>
>>> if choice.lower() not in ('prs'): # NB use a single string
>>
>> That's not a good idea. If a user accidentally enters PR (for example) 
>> your
>> version will mistake that for a valid choice.
> 
> Good point, although  you could test the first character only...
> 
> if choice[0].lower() not in ('prs'): # NB use a single string

Why would you do that? If the user is supposed to enter a single letter, 
why would you accept (for example) "screw you hippy, I hate this game!" 
as the valid response "s"?



-- 
Steven


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