Mailman 3 June 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. ______ __ __ _____ _ _ | ____ | \_/ |_____] |_____| |… [View More]

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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 … [View More]

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[Twisted-Python] [PATCH] to make twisted more "child process friendly"
by Manuel Estrada Sainz July 4, 2002

July 4, 2002

Hello, Working on apt-proxy v2 I got stuck trying to get the status of a subprocess: internet/default.py:76 signal.signal(signal.SIGCHLD, process.reapProcess) process.reapProcess will be called for every child that exists, which makes imposible to anyone to get the status. And actually makes useless calling 'reapProcess' from Process.maybeCallProcessEnded The patch allows objects to be registered to get the termination status of certain processes and changes process.Process to … [View More]

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[Twisted-Python] Twisted on WIN32
by David Marko June 29, 2002

June 29, 2002

I have found your remark in Twisted mailing list on cl.exe. Can you provide me with binary version for this, otherwise I am not able to make "python setup.py install" on twisted environment. I have Win2000 and python 2.2 Thank you. David Marko -------------------------------------------------------------------------------------------------------- TCL-DigiTrade Ltd. http://www.tcl-digitrade.com http://www.lnscan.com

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[Twisted-Python] Re: [Twisted-commits] Updated and added tests for twisted.sister. It may actually be usable for something now.
by Andrew Bennetts June 28, 2002

June 28, 2002

On Wed, Jun 26, 2002 at 05:22:03PM -0500, glyph CVS wrote: > > Note: With this checkin we (sean and I) discovered that the unit tests are > starting to interfere with each other. Currently a full run of the tests will > not complete, and will in fact hang and be unresponsive to signals. Running > individual test cases by themselves work fine, but they're interfering with > each other by doing reactor-y things ... we need each test case to > instantiate/start/stop the … [View More]

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[Twisted-Python] Developer Security Notice
by Glyph Lefkowitz June 27, 2002

June 27, 2002

Due to a potentially major security hazard, ssh has been shut down on twistedmatrix.com until further notice. There has been a discovery of a remote root exploit, but Theo de Raadt has mysteriously refrained from actually providing evidence of this exploit or a patch to fix it. There is currently a half-solution to the exploit, but it requires breaking substantial amounts of functionality, and creating other administrative problems. Surprisingly (Theo's great, ain't he?) the workaround only … [View More]

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[Twisted-Python] Twisted/doc/howto/listings/
by Paul Boehm June 26, 2002

June 26, 2002

i can't find Twisted/doc/howto/listings/ , as referenced from some of the howtos, in current cvs. are these unfinished or just not imported into cvs yet? paul

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[Twisted-Python] Twisted Bugs ... help!
by Steve Waterbury June 25, 2002

June 25, 2002

Yet another newbie question ... Trying to get Twisted Bugs to run, but no joy so far. Tried both Bugs-0.2.0 and the latest CVS version. Set up the twisted database and checked it to make sure the right tables are there and populated properly by schema.sql. I've also replaced "main" by "app" in bugs.tac, so the server will start up (might be good to fix that in the distro!). In both cases, trying http://localhost:8485 gives a traceback -- here are the log entries (nice logging, by … [View More]the way! :^) ... --------------------------------------------------------------------- 25/06/2002 14:10 [-] Log opened. 25/06/2002 14:10 [-] twistd 0.18.0-post (/usr/local/bin/python 2.2.1) starting up 25/06/2002 14:10 [-] license user: Nobody <> 25/06/2002 14:10 [-] organization: No Organization 25/06/2002 14:10 [-] reactor class: twisted.internet.default.SelectReactor 25/06/2002 14:10 [-] Loading /usr/local/src/python/Twisted/Bugs-0.2.0/bugs.tac... 25/06/2002 14:10 [-] Enabling Multithreading. 25/06/2002 14:10 [-] twisted.internet.threadtask is deprecated, use .threads instead. 25/06/2002 14:10 [-] Connecting to database: pyPgSQL.PgSQL () {'database': 'twisted'} 25/06/2002 14:10 [-] Loaded. 25/06/2002 14:10 [*Bugs*] twisted.web.server.Site starting on 8485 25/06/2002 14:10 [*Bugs*] Starting factory <twisted.web.server.Site instance at 0x83b40b4> 25/06/2002 14:10 [*Bugs*] Bugs.service.Service (twisted.bugs) starting 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] adbapi connecting: pyPgSQL.PgSQL {'database': 'twisted'} 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] Traceback (most recent call last): 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] File "/usr/local/lib/python2.2/site-packages/twisted/web/server.py", line 152, in process 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] body = resrc.render(self) 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] File "/usr/local/lib/python2.2/site-packages/twisted/web/widgets.py", line 902, in render 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] RenderSession(displayed, request) 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] File "/usr/local/lib/python2.2/site-packages/twisted/web/widgets.py", line 713, in __init__ 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] self.keepRendering() 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] File "/usr/local/lib/python2.2/site-packages/twisted/web/widgets.py", line 782, in keepRendering 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] deferred.unpause() 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] File "/usr/local/lib/python2.2/site-packages/twisted/internet/defer.py", line 161, in unpause 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] self._runCallbacks() 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] File "/usr/local/lib/python2.2/site-packages/twisted/internet/defer.py", line 179, in _runCallbacks 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] callback, args, kw = item[self.isError] 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] exceptions.AttributeError: Deferred instance has no attribute 'isError' 25/06/2002 14:11 [HTTPChannel,0,128.183.52.185] 128.183.52.185 - - [25/Jun/2002:18:11:38 +0000] "<GET / HTTP/1.1>" 500 11833 "-" "Mozilla/5.0 Galeon/1.2.5 (X11; Linux i686; U;) Gecko/20020606" --------------------------------------------------------------------- TIA for any help! -- Steve. Stephen C. Waterbury http://misspiggy.gsfc.nasa.gov/people/waterbug.html [View Less]

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[Twisted-Python] Re: [Twisted-commits] Small Updates
by Andrew Bennetts June 25, 2002

June 25, 2002

On Mon, Jun 24, 2002 at 12:30:04PM -0500, glyph CVS wrote: > > Log message: > Small Updates > > * Unit test fixes (--module option to runtests) How does this differ from --file? Is it just that you can do --module=ftp instead of --file=twisted/tests/test_ftp.py? -Andrew.

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[Twisted-Python] Proposal: changes to reactor.clientTCP
by Itamar Shtull-Trauring June 23, 2002

June 23, 2002

Background: Ivo pointed out there's no way to differentiate between "no such hostname" and "connection refused". For that matter, connectionFailed has nothing to do with the protocol - why are we doing a callback on the protocol at all? It shouldn't be created if no connection was made. Proposal: reactor.clientTCP accepts a protocol factory instead of a protocol, and only makes a protocol instance if connection was made. Additionally, it accepts an additional argument, failureCallback, … [View More]

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[Twisted-Python] Licence of examples
by Benjamin Bruheim June 21, 2002

June 21, 2002

Hello, After some speculation I stumbled across a little nut, what happens if I use LGPLed examples. Are these a part of the library and thus define the code itself as a library, or will they give Glyph a pica-percentage copyright on huge works based on the code? So, there's this file LICENSE that everyone must read through for fun. There's also an EULA coming up each time I install something on windows that I've never read through, except for fun. However, there are people believing in such … [View More]

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[Twisted-Python] new doc generator, new doc
by Glyph Lefkowitz June 21, 2002

June 21, 2002

I have just spent some time improving our documentation preprocessor as well as writing a new document and fixing some old ones. Everything's in CVS, though using generate-domdocs may be a little bit confusing, so I've put the relevant documents up on the web, too. http://zelda.twistedmatrix.com/doc/howto/plugin http://zelda.twistedmatrix.com/doc/howto/defer http://zelda.twistedmatrix.com/doc/howto/servers Of course, if you're bitten by the documentation bug too, examples for … [View More]

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[Twisted-Python] Generic hierarchy interface
by Jp Calderone June 20, 2002

June 20, 2002

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Its time has come. The need is pretty clear, partially for blog/news and a lot for Reality, and I'm sure for a lot of other things I'm not aware of. Basically, what seems to be needed is an interface that allows for a protocol-defined hierarchy to protocol-specific data, organised based on protocol-specific meta-data. For example, consider email. The protocol-specific hierarchy describes message threads (which you are all hopefully … [View More]

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[Twisted-Python] A Farewell to Arms
by Glyph Lefkowitz June 19, 2002

June 19, 2002

As detailed in my previous message, the .arm() method and patterns which required its use with respect to Deferreds were problematic: http://twistedmatrix.com/pipermail/twisted-python/2002-May/001117.html This is no longer the case. Rejoice! For the average application author, this means that a confusing and obscure corner of the API has been swept out of their view, where it never should have been in the first place. For the Twisted systems programmer, this means that you have more … [View More]

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[Twisted-Python] DICE Job - SENIOR GAME SYSTEMS DESIGNER
by Itamar Shtull-Trauring June 17, 2002

June 17, 2002

<http://www.dice.com/DandL/s/stuart.01T0SR_DEs.html>

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[Twisted-Python] twisted.enterprise.row
by Andrew Bennetts June 16, 2002

June 16, 2002

Quick question: Why doesn't twisted.enterprise.row use DB-API's Cursor.description feature, instead of PostgreSQL specific gunk? A cursory glance at what row needs and what Cursor.description provides suggests that you could and should use that. -Andrew.

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[Twisted-Python] pb.setFactoryForClass()
by Sean Riley June 16, 2002

June 16, 2002

proposal for new functionality in pb: In addition to the existing pb.setCopierForClass() I'd like a pb.setFactoryForClass() which would take a factory method instead of a class as its argument. This would allow serialized objects to be re-constructed on the other end of network connections by a factory instead of just be creating a new class. I have a use case where objects are created locally on both the client and server and these objects need to be passed as arguments to remote method … [View More]

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[Twisted-Python] BUG: setting timeout on clientTCP() will invoke connectionFailed twice
by Ivo van der Wijk June 15, 2002

June 15, 2002

Hi, The following code: -- from twisted.protocols.http import HTTPClient from twisted.internet import reactor class foo(HTTPClient): def connectionFailed(self): print "Failed" reactor.clientTCP("localhost", 8888, foo(), 2) reactor.run() -- Will print "Failed" twice. Without the timeout, only one "Failed" will be printed (of course make sure you connect to something that fails immediately when testing this :) It's kind of silly to keep te timeout after the connection has … [View More]

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[Twisted-Python] small README changes
by Bruce Mitchener June 15, 2002

June 15, 2002

Hey all, I started to check out Twisted today by running some of the stuff out of the distribution rather than only reading docs. I'd noted a few problems or unclear points in that process. The attached patch addresses most of them. Is the setup.py needed for anything if you aren't going to install Twisted into site-libs? Also, does one of the FTP tests fail for everyone? One of the marmalade tests failed on Python 2.2 (error about the NodeList type). Cheers, - Bruce Index: … [View More]

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Re: [Twisted-Python] no 'headers' in server.Request instance problem
by Jon Dyte June 13, 2002

June 13, 2002

glyph(a)twistedmatrix.com wrote :-> From: Itamar Shtull-Trauring <twisted(a)itamarst.org> > Subject: Re: [Twisted-Python] no 'headers' in server.Request instance problem > Date: Thu, 13 Jun 2002 01:37:41 +0200 > > > BTW - you don't need to use twisted.web.server.Request - since the > > refactor to HTTP you only need twisted.protocols.http.Request, no need > > to use twisted.web unless you are using it as a web framework. > > Actually you don't need … [View More]to use Request at all. If you want this to work with > other twisted.web servers, it would be best to structure your work as additions > to Resource, not Request. > > What functionality are you adding at the Request level? > > > -- > | <`'> | Glyph Lefkowitz: Traveling Sorcerer | > | < _/ > | Lead Developer, the Twisted project | > | < ___/ > | http://www.twistedmatrix.com | I'm not really adding any functionality. I was merely making a previous Twisted/Quixote script work with Twisted-0.18.0, which is how I found the reported problem. This script is so short I include it here. Jon """qserv Demo of an HTTP server built on top of Twisted Python that serves a Quixote application, and also supports an SMTP interface. """ # created 2002/03/19, AMK __revision__ = "$Id$" import string, cStringIO from quixote.http_request import HTTPRequest from quixote.publish import Publisher from twisted.cred.service import Service from twisted.internet.app import Application from twisted.mail import mail from twisted.protocols import protocol, http from twisted.web import server # Ports this server will listen on HTTP_PORT = 8098 SMTP_PORT = 8099 import quixote quixote.enable_ptl() publisher = Publisher('quixote.demo') publisher.read_config('quixote.conf') publisher.setup_logs() class QuixoteTWRequest (http.Request): def process(self): environ = self.create_environment() ## this seek is important self.content.seek(0,0) stdin = self.content request = HTTPRequest(stdin, environ) stdout = cStringIO.StringIO() stderr = cStringIO.StringIO() publisher.publish(stdin, stdout, stderr, environ) output = stdout.getvalue() #self.write(output) #self.setResponseCode(request.response.status_code) #for hdr, value in request.response.headers.items(): # self.setHeader(hdr, value) #self.finish() ## as per message on quixote list self.startedWriting = 1 self.write(output.replace("Status:", "HTTP/1.1")) self.finish() def create_environment (self): host = self.getHeader('host') or self.getHost() if ':' in host: serverName = string.split(host, ':')[0] else: serverName = host content_type = self.getHeader('content-type') typ, remote_addr, remote_port = self.transport.getPeer() env = { "PATH_INFO": self.path, "SERVER_SOFTWARE": server.version, "SERVER_NAME": serverName, "GATEWAY_INTERFACE": "CGI/1.1", "REMOTE_ADDR": remote_addr, "REMOTE_PORT": str(remote_port), "SERVER_PROTOCOL": self.clientproto, "SERVER_PORT": str(HTTP_PORT), "REQUEST_METHOD": self.method, "SCRIPT_NAME": "", "SCRIPT_FILENAME": "", "REQUEST_URI": self.uri, "CONTENT_TYPE": content_type, } return env class QuixoteFactory (http.HTTPFactory): def buildProtocol (self, addr): h = http.HTTPChannel() h.requestFactory = QuixoteTWRequest h.factory = self return h def run (): app = Application('Quixote') app.listenTCP(HTTP_PORT, QuixoteFactory()) app.run(save=0) if __name__ == '__main__': run() [View Less]

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[Twisted-Python] no 'headers' in server.Request instance problem
by Jon Dyte June 13, 2002

June 13, 2002

with mozilla build Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.8) Gecko/20020206,build 2002020615 sending a request to a quixote/twisted server (actually a modified Andrew Kuchling Example), I get the following error Installing SelectReactor, since unspecified. __main__.QuixoteFactory starting on 8098 Traceback (most recent call last): File "/sw/release/python/lib/python2.2/site-packages/twisted/internet/default.py", line 347, in doSelect why = getattr(selectable, method)() File "/… [View More]

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[Twisted-Python] Using Twisted for a clustering library.
by Patrick B. Day June 12, 2002

June 12, 2002

I've been working on a cluster library for MOSIX and I've noticed that parts could possibly be replaced with some Twisted stuff. Briefly what I need to be able to do is the following: o Have the server spawn off client processes and communicates with them using IPC. o The client process waits for a task to arrive from the server and replies back to the server with the results of the complete task. o The server sends tasks to available clients then waits for a client to repond, sends the now … [View More]

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[Twisted-Python] Twisted 0.18.0rc2
by Christopher Armstrong June 11, 2002

June 11, 2002

There were a few bugs found in Twisted 0.18.0rc1 -- problems with redirection in static (--path) webservers, some XML-dependancies, and missing plugins for the TCP port forwarder. If there are no more bugs found for a bit, then 0.18.0rc2 will be released as 0.18.0. Thanks for the help, Twisted 0.18.0 is shaping up to be a *solid* release. It feels good to put out stable software. ;-) -- Chris Armstrong << radix(a)twistedmatrix.com … [View More]

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[Twisted-Python] idea for file transfers over PB
by Paul Boehm June 10, 2002

June 10, 2002

suggestion: transfer metainformation about file objects over PB, and create wrapper instances on the receiving end. so remotefile.read() executes on the remote perspective. any arguments for/against this? feasible? i'll struggle with the source a little, but i doubt my current python/twisted skills suffice to make this work. paul

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[Twisted-Python] Arms Crisis
by Glyph Lefkowitz June 10, 2002

June 10, 2002

Anyone who has programmed in depth with Twisted probably know about arm()ing deferreds by now. Nobody has complained as loudly as I thought they would, so I'm not sure if this is really that big of a problem, but I'm questioning my original design decisions regarding .arm(). Originally, I wanted it to be easily determineable whether your callback would be called before your stack had been escaped; so the system you returned your Deferred to would .arm() it afterwards. However, this creates … [View More]

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