[Python-Dev] PEP 8: exception style

Guido van Rossum gvanrossum at gmail.com
Sat Aug 6 19:10:54 CEST 2005

On 8/6/05, A.M. Kuchling <amk at amk.ca> wrote:
> PEP 8 doesn't express any preference between the
> two forms of raise statements:
> raise ValueError, 'blah'
> raise ValueError("blah")
> I like the second form better, because if the exception arguments are
> long or include string formatting, you don't need to use line
> continuation characters because of the containing parens.  Grepping
> through the library code, the first form is in the majority, used
> roughly 60% of the time.
> Should PEP 8 take a position on this?  If yes, which one?

Definitely ValueError('blah'). The other form will go away in Python
3000. Please update the PEP.

--Guido van Rossum (home page: http://www.python.org/~guido/)

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