http://blogs.nuxeo.com/sections/
...ope_3_2_twisted
The next version of Zope will use Twisted as a web server.
The best persistance package to use for Twisted would be their very own Axiom project. It works fast, well, and easily and uses the lightweight, but powerful, SQLite.
> My new copy of Twisted Network Programming Essentials has just arrived.
Mine arrived last Friday. It's mostly a rundown of the APIs, not much discussion of Deferreds and Interfaces. It could be a good intro, but needs to be supplemented with other docs. Anyway, Glyph's preface is hilarious. 
> It's time to get Twisted...
It always is. ;-D
> Then there are smaller projects like Karrigell [...] I'm sure there are a
> host of other ones as well. I'm simply rattling through the ones I'm aware of.
Quixote. Don't forget the small and mighty Quixote.
> What the larger of these frameworks all have in common [2], is that they're
> multi-threaded solutions.
Yes, and that's really sad. Luckily there's Twisted.
> It amazes me that no-one has built a framework on top of Twisted.
>
> It looks there might now be a partial solution in the form of Mantissa
> from the Divmod folks. This describes itself as an "application server",
> which is good start.
I wouldn't say it's "partial", it's only undocumented yet. I'm studying it these days (yes, no more Zope3, thankyouverymuch), and it's already surprisingly evolved.
> I don't know how re-usable this is going to be, as it's targeted for the
> particular needs of Divmod.
It's really modular, I'm confident it's gonna be very reusable.
> It doesn't include the bells and whistles of other projects.
You sure? 
> Things like AJAX can be done through Nevow's livepage. This may not work
> with Mantissa
Except it already does, witness Radical... :-D
> and by all accounts is not as good as the Turbogears offering (which uses
> the allegedly excellent Mochikit).
What accounts? Nevow is going to use Mochikit in the next incarnation of Livepage, Athena (and it's already in the repository).
> I'm also uncertain of how Twisted would work with SQLObject which I
> believe is synchronous: I don't know what the best (read most scalable
> and Pythonic) database system for use with Twisted is.
The Divmod answer is Axiom: http://divmod.org/trac/wiki/DivmodAxiom . Mantissa is based on it, BTW. It's built on SQLite3, and I really like it. It already has a few docs.
And last but not least, are we through with the stinking footnotes yet? ;-P
>> and by all accounts is not as good as the Turbogears offering (which uses
>> the allegedly excellent Mochikit).
> What accounts? Nevow is going to use Mochikit in the next incarnation of Livepage, Athena (and it's already in the repository).
I've heard people switch away from livepage because they want to take advantage of *better* AJAX features in MochiKit. [#]_
It's good news that this is being addressed.
Lots of other good news in your comment - thanks.
.. [#] Of course not...
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