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-   -   Catching exceptions from Python 2.4 to 3.x (http://www.velocityreviews.com/forums/t954571-catching-exceptions-from-python-2-4-to-3-x.html)

Steven D'Aprano 11-17-2012 03:12 AM

Catching exceptions from Python 2.4 to 3.x
 
Oh for the day I can drop support for Python 2.4 and 2.5...


I have some code that needs to run in any version of Python from 2.4
onwards. Yes, it must be a single code base.

I wish to catch an exception and bind the exception to a name.

In Python 2.6 onwards, I can do:

try:
something()
except Exception as err:
process(err)

But in 2.4 and 2.5 "as err" gives me a SyntaxError, and I have to write:

try:
something()
except Exception, err:
process(err)


Is there some other trick to grab the current exception from inside an
except block?


--
Steven

Cameron Simpson 11-17-2012 03:26 AM

Re: Catching exceptions from Python 2.4 to 3.x
 
On 17Nov2012 03:12, Steven D'Aprano <steve+comp.lang.python@pearwood.info> wrote:
| Oh for the day I can drop support for Python 2.4 and 2.5...
|
|
| I have some code that needs to run in any version of Python from 2.4
| onwards. Yes, it must be a single code base.
|
| I wish to catch an exception and bind the exception to a name.
|
| In Python 2.6 onwards, I can do:
|
| try:
| something()
| except Exception as err:
| process(err)
|
| But in 2.4 and 2.5 "as err" gives me a SyntaxError, and I have to write:
|
| try:
| something()
| except Exception, err:
| process(err)
|
|
| Is there some other trick to grab the current exception from inside an
| except block?

sys.exc_info ?
--
Cameron Simpson <cs@zip.com.au>

Peeve: Going to our favorite breakfast place, only to find that they were
hit by a car...AND WE MISSED IT.
- Don Baldwin, <donb@netcom.com>

Steven D'Aprano 11-17-2012 03:53 PM

Re: Catching exceptions from Python 2.4 to 3.x
 
On Sat, 17 Nov 2012 14:26:43 +1100, Cameron Simpson wrote:

> On 17Nov2012 03:12, Steven D'Aprano
> <steve+comp.lang.python@pearwood.info> wrote:


> | Is there some other trick to grab the current exception from inside an
> | except block?
>
> sys.exc_info ?



Thanks, that is just what I was looking for.



--
Steven


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