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Fri Mar 17 20:49:59 CET 2006 · https://mail.python.org/pipermail/python-dev/2006-March/062526.html

John J Lee wrote:

>> In your formulation the comma binds more tightly than the as keyword. 
>> In import statements it's the other way around.  That seems like it 
>> might be a source of confusion.
> 
> Perhaps parentheses around the exception list should be mandatory for the 
> 2-or-more exceptions case?
> 
> except NameError as e:                  --> fine
> except (NameError) as e:                --> fine
> except (NameError,) as e:               --> fine
> 
> except NameError, OtherError as e:      --> SyntaxError
> except (NameError, OtherError) as e:    --> fine

I don't like that particularly, but I guess that for consistency's sake
it would have to be done this way.

Cheers,
Georg

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[Python-Dev] Py3k: Except clause syntax