Mailman 3 February 2002 - Twisted

[Twisted-Python] Twisted Python 0.7.0 Prerelease Testing
by Glyph Lefkowitz Aug. 5, 2021

Aug. 5, 2021

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 Aug. 12, 2002

Aug. 12, 2002

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] Aloha, New Member
by cpaul＠telemetrybox.org March 3, 2002

March 3, 2002

Aloha, My name is Charles Paul, and I am interested in learning more about how to use Twisted. Aloha, Charles

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[Twisted-Python] twisted.lumberjack clobbers existing logs
by Andrew Bennetts Feb. 26, 2002

Feb. 26, 2002

Hi everyone... I like the twisted.lumberjack module that was recently added, but I think it has a small buglet. It checks the size of the existing log file, but then opens it in mode "w", truncating it. Thus, I suggest the last line of LogFile._openFile should change from: self._file = open(self.path, "w") to: self._file = open(self.path, "a") -Andrew.

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[Twisted-Python] Security issue in SOCKS and Webcoil
by Itamar Shtull-Trauring Feb. 25, 2002

Feb. 25, 2002

Both of these when setup using mktap or coil listen on all interfaces. So running a mktap generated SOCKS on a firewall means anyone can access your internal network, and running coil means anyone can setup a telnet python shell or SOCKS proxy remotely. So, changes we need to make: SOCKS tap should allow configurin interfaces it will run on. COIL should allow configuring which interfaces a server can run on, not jusy which ports.

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[Twisted-Python] some errors twisted does not handle gracefully
by Cory Dodt Feb. 23, 2002

Feb. 23, 2002

I'm trying to make a catalog of these. Twisted needs to have better-defined exceptions for certain conditions instead of relying on Python to report the error via tracebacks. More specific errors would allow the developer to more quickly track down the problem. Furthermore, programmatic handling of exceptions in the client should be feasible. Handling a TypeError that could be a bug in your code the same as an unauthorized-client-action style error means you have to accept that bugs in your code will be masked if you catch these. Here's the list: 1) cause: Didn't set 'application' in a config.tac. results in this message in the log: "05/02/2002 00:50 [-] Python file '/home/cdodt/TwistedPlugins/dataconda/config.tac' did not produce an application." This isn't gross, but there's no reason not to give more information here. Even though I knew about this requirement, I had forgotten about it and renamed a variable, resulting in this situation. The log message wasn't helpful in reminding me. It should be just a little more specific: "config.tac must set a variable named 'application'. No application was produced." 2) cause: Trying to log in as an Identity that never had a password set Traceback! exceptions.TypeError, argument must be string or read-only buffer, not None /usr/lib/python2.1/site-packages/twisted/spread/pb.py:759:_recvMessage /usr/lib/python2.1/site-packages/twisted/spread/flavors.py:155:remoteMessageReceived /usr/lib/python2.1/site-packages/twisted/spread/pb.py:958:remote_respond /usr/lib/python2.1/site-packages/twisted/cred/identity.py:123:verifyPassword This one is pretty ugly. It's valid to have an Identity with no password. (If it isn't, then you shouldn't be able to create one.) In my case, it just means that user can't log in. If we must throw an exception here, throw "IdentityWithNullPasswordError" or something like that, and better yet, name the identity with the problem. 3) cause: calling a method with the wrong name on a RemoteReferenced object (Perspective, Referenceable, etc.) Traceback! exceptions.AttributeError, LobbyUser instance has no attribute 'perspective_xxx' /usr/lib/python2.1/site-packages/twisted/spread/pb.py:759:_recvMessage /usr/lib/python2.1/site-packages/twisted/spread/pb.py:194:perspectiveMessageReceived Well ok, duh, at least this one I can figure out. But it should still be something more specific: 'RemoteMethodNotImplementedError' for example. I will send more as I find them. Thanks! C __________________________________________________ Do You Yahoo!? Send FREE Valentine eCards with Yahoo! Greetings! http://greetings.yahoo.com

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[Twisted-Python] internet.app reports worng errors on bind()ing
by drt＠un.bewaff.net Feb. 23, 2002

Feb. 23, 2002

internet.app assumed 'port already bound' is the only error which can happen wen bind()ing. What's about 'premission denied' and all the others. This patch fixes that. drt http://c0re.jp/c0de/misc/twisted-0.15.0-bind-error.patch app gives a misleading errormessage when a error while binding to a port occures. This patch logs the error which actually has happended. --drt(a)un.bewaff.net - http://c0re.jp/ diff -u -r Twisted-0.15.0/twisted/internet/app.py Twisted/twisted/internet/app.py --- Twisted-0.15.0/twisted/internet/app.py Wed Jan 23 04:09:39 2002 +++ Twisted/twisted/internet/app.py Fri Feb 15 22:35:05 2002 @@ -348,8 +348,8 @@ for port in self.ports: try: port.startListening() - except socket.error: - log.msg('port %s already bound' % port.port) + except socket.error, msg: + log.msg('port %s: error: %s' % (port.port, msg[1])) return for connector in self.connectors: connector.startConnecting() -- teenage mutant ninja hero coders from da c0re - http://c0re.jp/ me - http://koeln.ccc.de/~drt/

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[Twisted-Python] A Complicated Twisted App To Show off
by Moshe Zadka Feb. 22, 2002

Feb. 22, 2002

Many of you might now I'm into role playing games. Recently, I got addicted to the Champions MUSH, and whined and heard others whine about the technical problems. Here they are, in no particular order: * Alts (alternate identities, multiple characters) are hard to manage * No Web interface * Lots of needed outside internet support is lacking (connection to the weather web site) In case you're not recognizing the theme, these are exactly the things Twisted is good at. Other almost cost-free benefits: * People can read VR e-mail on real life clients (pop3) * People can compose VR e-mail on real life clients (smtp) * People can connect with IRC clients (important to me, solved in an ugly way) * Management can be done in lotsa ways (coil, manhole, etc.) Note I did not mention reality. I don't think reality, based on what glyph said, would be a good match. The Champions MUSH is much more "if it's IC to have it, pose having it". Because of the way HERO deals with items, especially in superheroic campaigns, having 'stuff' is not really important. I'm thinking of starting to work on this. Anyone feels like join me? -- Moshe Zadka <moshez(a)twistedmatrix.com>

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[Twisted-Python] Waiting for multiple events
by Andrew Bennetts Feb. 20, 2002

Feb. 20, 2002

I have a collection of Deferreds. When they all complete, I want to trigger a "all complete" callback (probably via a Deferred). Alternatively, upon an error from any of the callbacks, I want to trigger the errback of that "all complete" Deferred. Is there something already written to do this? Or do I need to write it myself? -Andrew.

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[Twisted-Python] New HOWTO
by Moshe Zadka Feb. 20, 2002

Feb. 20, 2002

I've rewritten my Server HOWTO, and the new version is at http://twistedmatrix.com/users/moshez/WritingServers.html Please let me know what you think. In particular, is it better then the old one?

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