Mailman 3 July 2004 - Twisted

[Twisted-Python] Twisted Python 0.7.0 Prerelease Testing
by Glyph Lefkowitz 05 Aug '21

05 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] Get IP of connecting client in XMLRPC server
by Remy C. Cool 28 Apr '13

28 Apr '13

Hello, On 18 May 2004, the following message was posted to this mailinglist: Jp Calderone exarkun at divmod.com wrote: >Daniel Newton wrote: > > I have a simple XML-PRC server similar to the example below: > > from twisted.web import xmlrpc, server > > class Example(xmlrpc.XMLRPC): > """An example object to be published.""" > > def xmlrpc_add(self, a, b): > """Return sum of arguments.""" > return a + b def xmlrpc_whatIsMyAddress(self): return self.transport.getPeer().host > > if __name__ == '__main__': > from twisted.internet import reactor > r = Example() > reactor.listenTCP(7080, server.Site(r)) > reactor.run() > > I want to be able to get the address of the client that calls the xmlrpc > method can anyone help me with this? This solution didn't work because 'transport' isn't a property of the Example class. I'm currently in the process of changing from a customized SimpleXMLRPCServer to a twisted XMLRPC server solution and I need to insert the client IP into the attributes passed to the called xmlrpc method. Anyone who knows the answer and is willing to share the info? Regards, Remy

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[Twisted-Python] Re: [Twisted-commits] r11107 - Delete fundamentally broken test.
by James Y Knight 03 Aug '04

03 Aug '04

Wait, wait, that causes *hangs*? That seems like a bad thing. It doesn't look like an obviously wrong thing to do to me. Do you know *why* it's hanging? James On Jul 23, 2004, at 2:06 AM, Andrew Bennetts wrote: > warner and I agree that this test wasn't testing any useful behaviours > that > anything could actually depend upon, and it causes far too many > intermittent > test failures (and even hangs!) > -class PausingProcessProtocol(protocol.ProcessProtocol): > - > - data = "" > - elapsed = None > - > - def connectionMade(self): > - self.transport.pauseProducing() > - self.transport.write("a") > - reactor.callLater(2, self.transport.resumeProducing) > - > - def outReceived(self, d): > - self.data += d > - > - def processEnded(self, reason): > - self.data = self.data.lstrip("a") > - if len(self.data) != 5: > - self.elapsed = ValueError # XXX! > - else: > - self.elapsed = float(self.data) > - [...] > - > - def testPausing(self): > - exe = sys.executable > - scriptPath = util.sibpath(__file__, "process_pausing.py") > - p = PausingProcessProtocol() > - reactor.spawnProcess(p, exe, [exe, "-u", scriptPath], > env=None) > - while p.elapsed == None: > - reactor.iterate(0.01) > - self.failIfEqual(p.elapsed, ValueError, 'Child process wrote > garbage') > - self.assert_(2.1 > p.elapsed > 1.5) # assert how long process > was paused

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[Twisted-Python] transport.write clarification
by George Schlossnagle 31 Jul '04

31 Jul '04

Hello, I'm working on porting the mod_pubsub system to use the twisted framework. So far things are great, but I have one point of clarificaction. With all the standard reactors, how are writes handled in a non-blocking manner? Copying from some of the sample protocols, I have a dataReceived method in my Protocol implementation that looks vaguely like this: def dataReceived(self, data): self.inbuf += data if self.canReply() == true: self.transport.write(self.response) My question is: does write() make a non-blocking write, and if so does it reschedule itself later on automatically? Does it block? What is the preferred way of handling this? Thanks, George

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[Twisted-Python] Capturing a web-server shutdown signal?
by Sergio Trejo 31 Jul '04

31 Jul '04

When a Twisted web server is killed, I'd like to somehow get a signal from the server that its going down and clean up some objects (I.e., a PB Client instance -- need to log it out of the PB Server on shutdown) that I've persisted in the web server's registry. Has anyone done this before? Any suggestions besides perhaps usng the shutdown script to instantiate an HTTP client which fires a URL to the server which acts as a trigger to handle the registry cleanup? Thanks, Serg _________________________________________________________________ MSN 8 helps eliminate e-mail viruses. Get 2 months FREE*. http://join.msn.com/?page=features/virus

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[Twisted-Python] Failed to load application.
by Tsai Li Ming 31 Jul '04

31 Jul '04

Hi I'm getting a problem with "Failed to load application: No module named system" I have a test.tac and a system.py inside a user (joe) home directory. I can start it as Joe: [joe@bubbles joe]$ twistd -y test.tac However, when I try to start it as root in joe's home dir, I get the "Failed to load application" error message. [root@bubbles joe]# twist -y test.tac Failed to load application: No module named system I solved it via adding Joe's home dir (/home/joe) to the pythonpath in root's acct. Why can't it import the system module even though it's in the same dir? A python prompt does work when I manually import the module. Liming

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[Twisted-Python] API Documentation error discovered
by Sergio Trejo 31 Jul '04

31 Jul '04

I found a minor error in the API documentation. Please go to: http://www.twistedmatrix.com/documents/current/api/twisted.internet.interfa… In this block of text: ------------------------------------------------------------------------------------- Returns: An object implementing IConnector. This connector will call various callbacks on the factory when a connection is made, failed, or lost - see ClientFactory docs for details. ------------------------------------------------------------------------------------- The text, "ClientFactory" has a hyper link that incorrectly links to: http://www.twistedmatrix.com/documents/current/api/twisted.internet.protoco… Instead it should link to: http://www.twistedmatrix.com/documents/current/api/twisted.internet.protoco… Hope this is helpful ... I am nowhere near wizard status when it comes to adding code to Twisted, but I will continue to contribute to Twisted by chugging through the documentation and reporting errors, and will try to ask intelligent questions if something seems ambiguous (like the SMTP library docs the other day with "local" line endings). Cheers, -Serg _________________________________________________________________ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail

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[Twisted-Python] moin
by acapnotic＠twistedmatrix.com 29 Jul '04

29 Jul '04

is that your photo?

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[Twisted-Python] people running conch (and other bin/ scripts) from Twisted SVN head:
by Christopher Armstrong 29 Jul '04

29 Jul '04

Beware that you will soon need to update your PATH declarations to include Twisted/bin/conch/ in addition to Twisted/bin/. Same for lore, mail, and perhaps others. -- Twisted | Christopher Armstrong: International Man of Twistery Radix | Release Manager, Twisted Project ---------+ http://radix.twistedmatrix.com

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[Twisted-Python] Twisted debugging support
by James Y Knight 29 Jul '04

29 Jul '04

So, I propose to make the following change. I see no reason to destroy any hope of proper debugging support by doing a callLater of set_trace, for one. For two: control-c *really* ought to break into the debugger. Is there an actual reason why the previous code did reactor.callLater(0, pdb.set_trace)?? James Index: twisted/application/app.py =================================================================== --- twisted/application/app.py (revision 11112) +++ twisted/application/app.py (working copy) @@ -84,7 +84,8 @@ sys.stdout = oldstdout sys.stderr = oldstderr if runtime.platformType == 'posix': - signal.signal(signal.SIGUSR2, lambda *args: reactor.callLater(0, pdb.set_trace)) + signal.signal(signal.SIGUSR2, lambda *args: pdb.set_trace()) + signal.signal(signal.SIGINT, lambda *args: pdb.set_trace()) pdb.runcall(reactor.run) else: reactor.run() Index: twisted/internet/default.py =================================================================== --- twisted/internet/default.py (revision 11112) +++ twisted/internet/default.py (working copy) @@ -90,7 +90,9 @@ def _handleSignals(self): """Install the signal handlers for the Twisted event loop.""" import signal - signal.signal(signal.SIGINT, self.sigInt) + if signal.getsignal(signal.SIGINT) == signal.default_int_handler: + # only handle if there isn't already a handler, e.g. for Pdb. + signal.signal(signal.SIGINT, self.sigInt) signal.signal(signal.SIGTERM, self.sigTerm) # Catch Ctrl-Break in windows (only available in Python 2.2 and up)

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