[Python-Dev] patch for review: unittest ImportError handling

[Michael Foord]

On 14/04/2010 16:53, Nick Coghlan wrote:
> Michael Foord wrote:
>    
>> Changing the error message to provide more useful information, possibly
>> including the original traceback, would certainly avoid the potential
>> for incompatibility. I'd be interested in seeing what other folks here
>> on python-dev think.
>>      
> Without looking at the details, my question is whether this can be
> ignored in 2.x and fixed for 3.x by setting __cause__ appropriately
> (i.e. by using the "raise from" syntax).
>    

Yes, definitely - if maintaining the exception as an AttributeError is 
determined to be the correct course of action for that API.

Chris showed an alternative way of achieving the same effect for Python 
2, but that is possibly moot given that 2.7b1 is out (unless this is an 
acceptable bugfix to include in b2).

All the best,

Michael

> Cheers,
> Nick.
>
>    


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