using split for a string : error

inshu chauhan insideshoes at gmail.com
Thu Jan 24 13:29:43 CET 2013


Thanks a lot people.. :).. :)



On Thu, Jan 24, 2013 at 1:10 PM, Tobias M. <tm at tobix.eu> wrote:

> Am 24.01.2013 13:02, schrieb Chris Angelico:
>
>  On Thu, Jan 24, 2013 at 10:58 PM, Tobias M. <tm at tobix.eu> wrote:
>>
>>> Chris Angelico wrote:
>>>
>>>> I'd not consider the performance, but the correctness. If you're
>>>> expecting them to be integers, just cast them, and specifically
>>>> _don't_ catch ValueError. Any non-integer value will then noisily
>>>> abort the script. (It may be worth checking for blank first, though,
>>>> depending on the data origin.)
>>>>
>>> Well, when I said you should catch the ValueError I didn't imply you
>>> should
>>> ignore the error and supress any error messages. Of course this depents
>>> on
>>> the use case. Maybe you want to raise another exception with a more user
>>> friendly error message or you might want to skip the line and just print
>>> a
>>> warning. :)
>>>
>>> What I'm trying to say: When I give a script/program to a user who is
>>> not a
>>> python programmer I don't want him to see an error message like
>>> "ValueError:
>>> invalid literal for int() with base 10: 'abc'" as this would help him in
>>> no
>>> way.
>>>
>> Sure. Definitely. But for a proglet where the programmer IS the user
>> (which I think is one of Python's best use-cases), that exception
>> landing on the console is better than having to think ahead of time
>> about what might go wrong.
>>
>> ChrisA
>>
> Okay, I absolutely agree with that :)
>
> Tobias
> --
> http://mail.python.org/**mailman/listinfo/python-list<http://mail.python.org/mailman/listinfo/python-list>
>
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