Mailman 3 May 2005 - 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] epoll reactor
by James Bunton 04 Jun '05

04 Jun '05

Hi all I've implemented an epoll reactor using the level triggered mechanism. Please check it out and let me know if there's anything I've done wrong. This is the first time I've played with twisted reactor internals before. :) http://msn-transport.jabberstudio.org/tarballs/epoll-0.1.tar.gz There's a README file in the tarball with instructions on setting it up. Enjoy! :) --- James

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[Twisted-Python] twisted.mail.imap4.MessageSet object & imap4 server example
by Sebastjan Trepca 02 Jun '05

02 Jun '05

Hi! 1. I don't understand how to use this object. When the fetch method is called, this object is passed containing the requested messages which you then return, right? But is there any easy way to just iterate through it and get the requested UIDis, even if LAST is not set. 2. Where could I find some IMAP4 server examples? Thank you. Regards, Sebastjan

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[Twisted-Python] Using twisted.conch.recvline
by Abe Fettig 02 Jun '05

02 Jun '05

Hello all, I'm trying to figure out how to hook up the necessary classes in twisted.conch.recvline to add line-editing and history to a simple ssh app. It was easy to modify http://twistedmatrix.com/projects/conch/documentation/examples/sshsimpleser… to use a custom protocol (a simple command-line interface that sends web services requests to a JotSpot wiki), but I can't figure out how recvline is meant to be used. Could someone (Jp?) show me how you'd go about bolting recvline onto sshsimpleserver? Thanks! Abe

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[Twisted-Python] wxpython, threadselectreactor and thread
by Michele Petrazzo 31 May '05

31 May '05

I have a wxpython application that work with twsited 2.0 on win and linux. In these days I'm "porting" it from twisted 1.3 to 2.0 + threadselectreactor, but not all work well. Into my application I use: callLater threads.deferToThread with some addCallBack Three problems: 1) Sometime then I open and close my application I receive this error: Unhandled exception in thread started by <bound method Thread.__bootstrap of <Thread(Thread-1, stopped daemon)>> Traceback (most recent call last): File "C:\Python23\lib\threading.py", line 451, in __bootstrap self.__stop() File "C:\Python23\lib\threading.py", line 460, in __stop self.__block.notifyAll() File "C:\Python23\lib\threading.py", line 256, in notifyAll self.notify(len(self.__waiters)) File "C:\Python23\lib\threading.py", line 238, in notify currentThread() # for side-effect TypeError: 'NoneType' object is not callable 2) Then I call with threads.deferToThread a method that make a blocking work, and after it open a new frame, the frame is opened, but if I want to close the first frame and the second frame (with the "X" on the frame), the application don't close. Into the task manager (on win) or into /proc/"pid" I see that the process (python.exe) are alive and have three threads. I attach a simple code that reproduce this problem. 3) Why into your demo the reactor.stop() work and into my code I receive this error: RuntimeError: can't stop reactor that isn't running I use the same code initialization of the demo. Thanks a lot, Michele

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[Twisted-Python] clustering or process group replication
by Laran Evans 31 May '05

31 May '05

Has any work been done to enable process group communication similar to what Spread (spread.org), Ensemble, Horus, Isis, Eternal etc. offer? - Laran

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[Twisted-Python] ftp server cannot access below directory
by seba.tutu 31 May '05

31 May '05

Hi, I was trying to implement a very basic ftp server using the twisted framework (version 2). The server is running under WinXP. I launch the programm under the twisted shell using twistd -y name_program.py The client is linux partly because for the test it appears that I need a passice connection. I manage to login and to type basic command (like help, bin)... As soon as I ask for a ls, there is a message 550 : Cannot accsees below / directoey : Permission denied. The directory exists. If it does not exist there is anyway a very different message that pops up and the connextion is forced to close. Obviuosly there is something that I do not get right for the file systeme authorisation. I have looked for examples but have not found any helping further. I you can point me to some usefull links or information I would greatly appreciate. Regards. Sebastien. The basic code is below. I use passice client and the connection is OK but I have a trouble the clie # FTp server for test from twisted.internet.protocol import Protocol, ServerFactory from twisted.protocols import ftp from twisted.application import service, internet from twisted.cred import checkers,portal #To run under the twisted shell: twistd -y name_program.py # definition du royaume realm=ftp.FTPRealm("./seb") # Attention, il sera necessaire d'utiliser une connection passive !!!! checker=checkers.InMemoryUsernamePasswordDatabaseDontUse() checker.addUser("q","q") portal=portal.Portal(realm) portal.registerChecker(checker) factory = ftp.FTPFactory(portal) # definition de l'application application = service.Application("ftp") # definition du serveur et attache au service associe !!! myServer=internet.TCPServer(21, factory) myServer.setServiceParent(application) Accédez au courrier électronique de La Poste : www.laposte.net ; 3615 LAPOSTENET (0,34/mn) ; tél : 08 92 68 13 50 (0,34/mn)

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[Twisted-Python] using http server in twisted
by John Que 31 May '05

31 May '05

Hello, I am trying the exmaple in the python docs - http://twistedmatrix.com/users/warner/doc-latest/web/howto/using-twistedweb… Configuring and Using the Twisted.Web Server - Twisted Web Development. it says there: "You can also create a Site instance by hand, passing it a Resource object which will serve as the root of the site: from twisted.web import server, resource from twisted.internet import reactor class Simple(resource.Resource): isLeaf = True def render_GET(self, request): return "<html>Hello, world!</html>" site = server.Site(Simple()) reactor.listenTCP(8080, site) reactor.run() " So I prepared a script named myhttp exactly like this and ran ./myhttp I had made sure with netstat that indeed port 8080 was free before running the script and after running the script it was in a listening state. But when pointing the Mozilla browser to http://localhost:8080 (or http://127.0.0.1:8080) I got the following error: "Method Not Allowed Your browser approached me (at /) with the method "GET". I only allow the method here." I had also made sure that there in no problem with iptables and that the iptable service is down. Any idea ? Am I missing something? Any help will be appreciated. Regards, John _________________________________________________________________ FREE pop-up blocking with the new MSN Toolbar - get it now! http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/

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[Twisted-Python] Alarm collection and display system?
by Brett Viren 31 May '05

31 May '05

Hi, Our experiment has need for a pseudo real-time (prompt) networked alarm collection and display system. Before just diving in and writing something I thought I'd best try to see if anything is out there and Twisted certainly seems a fertile enough framework to have had at least one such system sprouted already. What we have is several, independent processes all of which can raise problems of varying degrees of severity. Most of the alarm producers are written in differing languages and frameworks and are scattered over different computers (some in different states). We want to centralize these alarms and then serve them to one or more consumers. Ideally alarms are "pushed" to consumers rather than needing to poll so as to minimize latency between production and consumption. But, because some consumers will be behind firewalls the consumers should initiate the connection. Anything already fit this bill or come close? If we do end up rolling our own, any suggestions to get us started in the right direction? Thanks, -Brett.

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Twisted May 2005