Guido van Rossum wrote:
>
>[...] a generator doing cleanup depending on the
>exception thrown (like the transactional() example below) can
>*catch* the exception thrown if it wants to and doesn't have to
>worry about re-raising it. I find this more convenient for t
Arnold deVos wrote:
>
> This template eats eats the exception, which will cause a RuntimeError
> in the proposed Wrapper, I think. A raise after rollback is needed.
Actually, the Wrapper as written in the PEP does not raise RuntimeError
if the generator catches a block's excepti
Guido van Rossum wrote:
> [Phillip J. Eby]
>>* The transaction handler could also be written as:
>>
>> @with_template
>> def transactional(db):
>> db.begin()
>> try:
>> yield db
>> except:
>> db.rollback()
>> else:
>> db.co
Guido van Rossum wrote:
> [...] But some of the claims from PEP 3XX seem to be incorrect now: Nick
> claims that a with-statement can abstract an except clause, but that's
> not the case; [...]
Sorry for being a lurker, but can I try and expand this point.
The options:
- If we don't allow the ex
