[Tutor] (no subject)

[Dave Angel]

On 06/19/2012 03:35 PM, Selby Rowley-Cannon wrote:
> Mailing list;
>         I have a small, [for the most part] functioning translation app for Rydish, a language created for the sole purpose of an RPG. The only problem is when I enter a word that has not yet been translated, I get this error:
>
> Traceback (most recent call last):
>   File "translator.py", line 25, in <module>
>     Etranslate()
>   File "translator.py", line 14, in Etranslate
>     print(Edictionary[Eword])
> KeyError: 'world'
>
> Is there a way to print a user-freindly message instead of displaying a traceback?
> Thanks,
>         -Selby
>
>

Even easier than catching an exception is to test for the condition you
expect might not pass.  Assuming your Edictionary is a dict, all you
need to do is to make the reference conditional on the presence of that
particular key.

if Eword in Edictionary:
    print(Edictionary[Eword])
else:
    print("oops....



-- 

DaveA