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Subject: Re: except clause syntax question
From: Charles Yeomans <charles@declareSub.com>
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Date: Tue, 31 Jan 2012 19:27:38 -0500
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On Jan 31, 2012, at 7:12 PM, Terry Reedy wrote:

> On 1/31/2012 8:57 AM, Charles Yeomans wrote:
>=20
>> In any case, though I appreciate your attempt at a post hoc =
justification,
> > I was hoping for a positive explanation.
>=20
> I think the best you are going to get is that Python somewhat =
consistently*, for both practical and historical reasons#, uses tuples =
when the syntax allows an object or collection of objects.
>=20
> * except, isinstance, isubclass, ''%x, perhaps other places.
>=20
> In the last case, that creates a problem when one wants to interpolate =
a tuple as an object rather than having it viewed as a container of =
several objects to be interpolated. That was on
>=20
> # Python once treated tuples as different from lists in ways that is =
not true now. (Read the 1.5 docs if really interested.)
>=20


I'll do that.  Thanks.


Charles Yeomans