Mailman 3 January 2002 - Twisted

[Twisted-Python] Twisted Python 0.7.0 Prerelease Testing
by Glyph Lefkowitz 06 Aug '21

06 Aug '21

hi there, folks: I'd really like to release 0.7.0 but I would like it to be at least a little bit tested before I do so. Could those of you with CVS trees check everything out and see if it performs as advertised? Deeper bugs than that will have to wait for the next release, but I'd at least like to know if it works for someone other than me. Thanks. ______ __ __ _____ _ _ | ____ | \_/ |_____] |_____| |_____| |_____ | | | | @ t w i s t e d m a t r i x . c o m http://www.twistedmatrix.com/~glyph/

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[Twisted-Python] [patch] mktap web --resource
by Sune Kirkeby 13 Aug '02

13 Aug '02

Hi, all! Attached is a short patch to add a --resource option to "mktap web", here is the --help for it: -r, --resource= <class> is the name (including module) of a subclass of twisted.web.resource.Resource to publish. So you can have any subclass of t.w.r.Resource be the 'root' of your web-server. I have also been working on a few other things: - an async Pytho-only PostgreSQL interface (not t.e.adbapi compatible, since I am not usre I like it's interface and need to play a bit before I figure out how I would like an async SQL-database interface to behave.) - a SQLResultWidget, very dull right now but I will probably hack some BoboDTML support into it. first-post-but-not-like-/.-ly yrs, -- Sune Kirkeby | /* we're still looking for the end of the | * server's header ... (does that make header | * parsing an "out of body experience" ? */ | -- jcc.c in junkex source-code

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[Twisted-Python] twisted.enterprise docs suck
by andrew-twisted＠puzzling.org 20 Feb '02

20 Feb '02

Because the twisted.enterprise docs currently suck (i.e. I couldn't figure it out without help :), I decided to write a small tutorial that should hopefully explain things a bit better. I've put a copy up at http://poetry.puzzling.org/twisted_db.html. I'd appreciate any feedback anyone has, in particular: * Have I stuffed up anything major? * Is my terminology ok (e.g. "...dispatch queries to your ConnectionPool...") * Am I demonstrating "best practice" use of twisted.enterprise, or should I be structuring my code differently? If someone wants to place this (or an edited version of it) on twistedmatrix.com, or distribute it with Twisted, or both, they are welcome. Regards, -Andrew.

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[Twisted-Python] Behold: Shirts
by Jason Asbahr 03 Feb '02

03 Feb '02

Glyph has set up a CafePress storefront -- now you too can be proudly emblazoned with the Twisted Logo! http://www.cafepress.com/twistedlabs Jason (I went ahead and paid the outrageous 2nd day air shipping to make sure my shirt arrives before IPC 10...)

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[Twisted-Python] Fwd: [wearables] commercial survey - IEEE Pervasive Computing
by Jason Asbahr 01 Feb '02

01 Feb '02

Excuse the forward, but this touches on some of the personal information space considerations of Twisted. For additional illustration, may I suggest adding a Bruce Sterling book of short stories to your reading list, "A Good Old-Fashioned Future". In particular, the story "Maneki Neko" illustrates a future application of portable machines and Memex/Twisted/ReputationNetwork systems for distributed gift-culture collectives. Like ours. :-) Jason Begin forwarded message: > From: "David P. Reed" <dpreed(a)reed.com> > Date: Thu Jan 31, 2002 12:20:41 PM US/Central > To: rhodes(a)alum.mit.edu, "Thad E. Starner" <thad(a)cc.gatech.edu> > Cc: wearables(a)cc.gatech.edu > Subject: Re: [wearables] commercial survey - IEEE Pervasive Computing > > Though I'm still quite excited about the potential of self-contained > general purpose wearables, I have to say that the capabilities of my > Kyocera QCP6035 Smartphone, the Samsung palmphone and the upcoming Treo > are impressively general, and because they can be augmented by > intelligence on the Internet quite easily (having escaped the walled > garden of WAP), they can be quite general purpose. Already they can do > something quite cool - you can attach a small GPS receiver (Pharos) to > them and get live location info that drives the navigation through > geographic data on the Internet. There are no car-mount or portable > GPS navigation systems that can access up-to-date maps and directions - > they run off of internal data only. > > Thus the commercial world surrounding the Palm OS-based phones is > actually poised ready to go beyond PIMs into new apps. The big limit > is the bitrate on CDMA and GSM nets that is available (very low, so it > pays to have local cache). > > The real problem inhibiting the market is the odd idea that what you > want to do with a mobile device is the class of things you do sitting > at a desk in your study or office. I don't want to browse the Web in > general - or compose documents or read long Microsoft word attachments. > > But the Palm phones are plenty powerful enough to do cool things in > conjunction with general purpose intelligence elsewhere. > > > At 09:56 AM 1/31/2002 -0800, Bradley Rhodes wrote: > >> >Computer enthusiasts have been known to rewrite a MP3 player's >> >interface software to allow the uploading and downloading of any >> >type of data, effectively making the device into the equivalent >> >of a large floppy disk. More recently, these devices are >> >merging with PDAs and cellular phones to create a wide variety >> >of available products. IDC expects sales of portable devices >> >with digital audio playback capability to grow to 15 million >> >units by 2005. In a sense, these devic >> >> It's not just computer enthusiasts anymore. The iPod is both an >> MP3 player or, at the flip of a switch, a firewire 5G hard >> drive. A friend of mine uses it both to play music and to store >> all her personal email, so she can read email at work without >> tainting company disk with it. >> >> You touched on the question of general-purpose, but I'd love to >> see it addressed further. The average PC owner has a web browser, >> email reader, full office suite and game machine all in one >> box. Because of inherent interface constraints, the Palm Pilot is >> only widely used for PIM applications: short memos, calendar, >> phone and to-do lists. Wearables have even more interface >> constraints than pen-based systems, which implies to me they'll >> be even more task specific, at least until we get a bluetooth >> equivalent that lets you have task-specific interfaces all >> sharing one processor/memory/battery attached to the belt >> somewhere. >> >> Comments? >> >> Brad >> >> -- >> Bradley Rhodes >> Intelligence Augmentation | Software Agents | Wearable Computing >> http://www.bradleyrhodes.com/ > > - David > -------------------------------------------- > WWW Page: http://www.reed.com/dpr.html > > >

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[Twisted-Python] Factory.startFactory being called twice.
by andrew-twisted＠puzzling.org 31 Jan '02

31 Jan '02

Hi all, I recently upgraded to 0.14.0, but I'm still seeing Factory.startFactory() being called twice when I start my server. If I start my server with the following code (adapted from simpleserv.py): app = Application('spam') app.listenTCP(1234,MyFactory()) app.run(save=0) Then by using traceback.format_stack() in MyFactory.startFactory I can see that it gets called twice, here: app.run(save=0) File "F:\Python22\Lib\site-packages\twisted\internet\app.py", line 350, in run port.startListening() File "F:\Python22\Lib\site-packages\twisted\internet\tcp.py", line 395, in startListening self.factory.startFactory() and here: app.run(save=0) File "F:\Python22\Lib\site-packages\twisted\internet\app.py", line 357, in run port.factory.startFactory() I'm currently using if not hasattr(self, 'once'): self.once = 1 # ... To workaround it, but it'd be nice to not need to do this. The docs suggest that it will get called twice, "both after an application has been unserialized and before all the ports begin accepting connections." Which is fine, except that I'm not unserialising... It's a minor glitch in an otherwise beautiful system :) -Andrew.

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[Twisted-Python] ANN: Perspective Broker for Java, v0.4
by Itamar Shtull-Trauring 30 Jan '02

30 Jan '02

Hi all, I've released a new version of PB for Java. The new version is required for compatability with Twisted 0.14. The new version also adds support for using and sending Copyables from Java, jellying instances (not that you'd want to do this), and sending String objects over PB and Jelly. You can download it from: http://itamarst.org/software/

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[Twisted-Python] CVS manhole Traceback
by Travis B. Hartwell 29 Jan '02

29 Jan '02

Hey all, I was wanting to use manhole to connect to a new pb service I am creating (a contact manager), but I am getting a traceback when I try to run manhole. Also, it dumps core if I don't have my $DISPLAY variable set. :) Anyway, here is the traceback (latest CVS, etc.) Traceback (most recent call last): File "./manhole", line 57, in ? from twisted.manhole.ui import gtkmanhole File "/home/slt5v/data/projects/Twisted/twisted/manhole/ui/gtkmanhole.py", line 39, in ? import spelunk_gnome File "/home/slt5v/data/projects/Twisted/twisted/manhole/ui/spelunk_gnome.py", line 679, in ? Explorer, 'twisted.python.explorer') File "twisted/spread/flavors.py", line 68, in setCopierForClassTree NameError: global name 'types' is not defined Any ideas? Naf

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[Twisted-Python] Pure Python SNMP framework for Python
by Itamar Shtull-Trauring 28 Jan '02

28 Jan '02

I looked at the asyncore code - porting to twisted would probably take 10 minutes. <http://pysnmp.sourceforge.net/>

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[Twisted-Python] [Fwd: [ZODB-Dev] ANNOUNCE: Python 10 Birds of a Feather session on a Python persistence framework]
by Itamar Shtull-Trauring 27 Jan '02

27 Jan '02

This sounds interesting for us, since you could use it to have your .tap always uptodate, instead of just saving on shutdown. and other interesting uses. The correct day is actually Wednesday. -------- Original Message -------- Subject: [ZODB-Dev] ANNOUNCE: Python 10 Birds of a Feather session on a Python persistence framework Date: Fri, 25 Jan 2002 19:12:39 -0500 From: Jim Fulton <jim(a)zope.com> Reply-To: jim(a)zope.com Organization: Zope Corporation To: zodb-dev(a)zope.org We plan to have a Birds of a Feather (BOF) session at the Python 10 Conference, http://python10.org, on a Python persistence framework. The Zope object database, ZODB, includes frameworks for persistence and transaction management. These frameworks depend very little on the rest of ZODB and will be factored out of ZODB and made into separate packages in the next generation of ZODB, ZODB 4. The ZODB persistence framework provides significant benefits to Python programmers: - Objects are automatically loaded and stored. The programmer doesn't have to keep tack of when objects have been modified. The objects track modification and notify the transaction manager of changes. The transaction manager coordinates storing data. Data are loaded when needed, with loads triggered by access from other objects. - An object cache automates moving data out of memory when no longer needed. A cache invalidation protocol helps to keep object consistence across multiple applications or application threads. We would like to see these benefits made available for other databases. We'd especially like to see a persistence framework using relational databases, reusing object-relational mapping efforts, such as MiddleKit and others. We'd like to kick off an effort to design a persistence framework to encompass ZODB, relational databases, and other persistence systems. The BOF will begin with a presentation of the ZODB Persistence framework. The time and location are TBD. Check the BOF schedule when you get to the conference. Jim -- Jim Fulton mailto:jim@zope.com Python Powered! CTO (888) 344-4332 http://www.python.org Zope Corporation http://www.zope.com http://www.zope.org _______________________________________________ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev(a)zope.org http://lists.zope.org/mailman/listinfo/zodb-dev

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Twisted January 2002