[Web-SIG] Future of WSGI

[Ian Bicking]

Have you read the threads on WSGI 2?  These issues are discussed at length,
though they haven't been put into a spec.

The proposal that seemed to work best was to keep the environ as str (i.e.,
unicode in Python 3), and eliminate the problematic SCRIPT_NAME and
PATH_INFO, replacing them with url-encoded values.  Also I think everyone is
okay with removing start_response.  All text would be decoded as latin1 on
Python 3 (which allows for transcoding; also most text is not unicode).  The
request and response body would remain bytes.

On Tue, Nov 24, 2009 at 2:58 AM, Malthe Borch <mborch at gmail.com> wrote:

> I disagree that the current 1.x track of the WSGI specification [1]
> supports Python 3 in any reasonable way. Recently I suggested the following
> rule as a guideline [2]:
>
>  Strings should be strings, chunks should be bytes.
>
> What this really suggests is that everything that looks and feels like a
> human-readable string (almost everything in HTTP except the input content
> and the output response) should be a (unicode) string. As I read the
> proposed 1.1 revision, this is not the case.
>
> However, there is another fish to fry here too, and I'd like to propose a
> new 2.x track altogether. In the outset, this would pertain to Python 3
> only.
>
> Instead of passing ``environ`` and violate its contract by adding 'wsgi.*'
> entries, we must pass in an object which actually represents the HTTP
> request, e.g.
>
>  Request = namedtuple("Request", "environ input")
>
> There could be other properties of this request-object. I haven't
> considered the details.
>
> To consider for this track is also the possibility of changing the
> application call signature (I heard this proposal from Daniel Holth, but
> it's probably been suggested before):
>
>  def __call__(self, request):
>      return status, headers, app_iter
>
> I don't mind ``start_response`` terribly, but it's worth discussing.
> Certainly returning this triple makes things easier.
>
> \malthe
>
> [1] http://bitbucket.org/ianb/wsgi-peps/src/tip/pep-0333.txt
> [2] http://mockit.blogspot.com/2009/11/dont-look-back-in-anger.html
>
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-- 
Ian Bicking  |  http://blog.ianbicking.org  |
http://topplabs.org/civichacker
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