[Zope-dev] string exceptions

[Laurence Rowe]

On 25 February 2011 11:09, Godefroid Chapelle <gotcha at bubblenet.be> wrote:
> Le 25/02/11 12:03, Laurence Rowe a écrit :
>>
>> On 25 February 2011 10:58, Godefroid Chapelle<gotcha at bubblenet.be>  wrote:
>>>
>>> Hi,
>>>
>>> I find a few string exceptions leftover in Zope 2.13 code.
>>>
>>> However, they are not allowed anymore in Python 2.6.
>>>
>>> I guess that the remaining string exceptions are in dead/semidead code.
>>>
>>> What practice has been followed until now regarding fixing those
>>> exceptions ?
>>
>> According to this doc,
>>
>> http://docs.python.org/c-api/exceptions.html#deprecation-of-string-exceptions
>>
>> "String exceptions are still supported in the interpreter to allow
>> existing code to run unmodified, but this will also change in a future
>> release."
>>
>> It will of course be important to fix these before we move to Python
>> 3.x, but I would expect that the dead/semidead code will not be
>> ported.
>>
>> Laurence
>
> I just tried to run the code hereunder with Python 2.6.5:
>
> def main():
>    raise "Abc"
>
> main()
>
> This is what I get :
>
> Traceback (most recent call last):
>  File "test.py", line 4, in <module>
>    main()
>  File "test.py", line 2, in main
>    raise "Abc"
> TypeError: exceptions must be old-style classes or derived from
> BaseException, not str
>
> I am not sure what the documentation above means but it seems to be text
> that was not fixed...

Reported in http://bugs.python.org/issue11317

Laurence