Mailman 3 December 2008 - 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] regarding xml elements
by Raj kumar 02 Oct '13

02 Oct '13

Hi, I have an xml file in my application, I have created an element using Example goes like this......... document.createElement("abc") and i appeneded it by using append() method. But how i can reflect this change to my xml file? and one more thing is i want to create element with some other parameters.... like............. <abc m=" " n=" "> </abc> and i have m and n values as strings with me. can anybody help me to create this element and write it to the existing xml file as a child of an existing element? Thanks in advance.. Raj.. Forgot the famous last words? Access your message archive online at http://in.messenger.yahoo.com/webmessengerpromo.php

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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] An XMPP client with SSL support
by Pedro Sanchez 18 Sep '09

18 Sep '09

Hello, I have a sample XMPP client with the following structure: from twisted.words.protocols.jabber import client, jid from twisted.internet import reactor ... factory = client.basicClientFactory(myJid, myPasswd) reactor.connectTCP(host,5222,factory) reactor.run() It works well, I can connect to the XMPP server. But I would appreciate if some one could give me some hints on what's required to get the client to connect using a secure SSL link. Thanks, -- Pedro

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[Twisted-Python] SQLAlchemy and Twisted
by alex clemesha 13 Feb '09

13 Feb '09

Hi, I didn't want to hijack the 'Twisted Presentation Materials..' thread, so I started this one ... First off, in the other thread, Glenn, you mentioned Storm. I have heard of Storm, but never got any deeper that noticing that it is still a work in progress (maybe things have settled down ?) If anyone has anything to say on how it might be a good choice with Twisted, please feel free to enlighten us! But, I hoping to solve some immediate problems with Twisted and SQLAlchemy, so ... >> >> * A main "App Server", that controls high level access with "twisted.cred" >> * Web frontend: "twisted.web2" >> * Data: some "twisted.enterprise.adbapi", moving to SQLAlchemy. > > Interesting; how are you handling asynchrony in SA? This is the issue that we're stilling unclear on, and I really would like to know of the best way of integrating Twisted with SQLAlchemy. Twisted devs / experts: Please, could you comment on the right way of using Twisted and SQLAlchemy together. Anyone: If anyone know of existing code that integrates Twisted and SQLAlchemy nicely, please share! RIght away I just went about the problem be wrapping each call to SQLAlchemy in a "deferToThread" inside my "DatabaseManager" class. At startup of my app, I make an instance of this class, and pass it to each "avatar" (in "requestAvatar", in my portal) Here is my Database Manager: (you will actually see that I 'turned off' the deferToThread wrapping for now): http://trac.knoboo.com/browser/branches/knoboo-sqlalchemy-take2/knoboo/data… but I really haven't convinced myself that this is the best way of doing things. Hell, it could be totally wrong, so if anyone has any advice, I would be very appreciative! > I'm aware of sAsync, > but haven't looked much into it. (I'm a step or two behind you, actively > using adbapi, and thinking about moving to SA when I get some breathing > room.) I've looked into SAsync as well, but it is not totally clear to me what the extra benefit of it is (again, anyone who has a good description, please tell) The main developer of sAsync use to post to this mailing list, but I haven't seen him post in a fairly long while. So, if others are thinking about using SQLAlchemy with Twisted, let's discuss it more. Thanks very much, Alex

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[Twisted-Python] ssh v1 support
by Deniz Pecel 03 Jan '09

03 Jan '09

Hi List Does twisted support ssh v1? thanks

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[Twisted-Python] spawning tasks after reactor?
by Darren Govoni 31 Dec '08

31 Dec '08

Hi, I'm new to twisted and have a simple question. I want to run a threaded server that monitors a remote service and spawns queued/threaded tasks as it finds messages. I'm having trouble understanding how to do this after a reactor is running since the tasks are not set up before reactor.run(). I see reactor.callLater(). But I want to spawn the task immediately. I tried: reactor.callLater(0,self.some_method,object) but the method is not immediately invoked. It seems its not invoked at all. I want to create a high-performance threaded scheduler using twist. Any tips? thank you! Darren

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[Twisted-Python] FTP LIST
by Simply for IT 30 Dec '08

30 Dec '08

<http://twistedmatrix.com/pipermail/twisted-python/2008-December/018932.html> Hi Jean-Paul, thank you for your reply. I need to implement a new IFTPShell, right? I have tried to create a new class (with a list method), which is inherited from IFTPShell class itself, but I cannot get it accepted by the realm I posted before. Greg >IFTPShell is the way you control the behavior of the FTP server. To exclude >certain results from a directory listing, you would implement the `list´ >method so that it has the necessary logic for performing that exclusion.

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[Twisted-Python] combining addCallback and callLater ?
by Arye 29 Dec '08

29 Dec '08

Dear list, I would like to add a callback that delays the chain. In other words I would like to combine: defer.Deferred().addCallback and reactor.callLater The only solution I came up with was the code below. There must be a more elegant way to do this. Any ideas would be greatly appreciated, All the best, *************************begin from twisted.internet import reactor, defer def printResults(results, arg): print "In printResults results=", results print "In printResults arg=", arg if arg == 2: reactor.stop() def fireLater(results, d2): print "In fireLater results=", results reactor.callLater(5, d2.callback, "firelater") d1 = defer.Deferred() d2 = defer.Deferred() d2.addCallback( printResults, 1) d2.addCallback( printResults, 2) d1.addCallback(fireLater, d2) d1.callback("fire") reactor.run() *************************end

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[Twisted-Python] Twisted and Urwid
by Christian Scharkus 28 Dec '08

28 Dec '08

Hi folks. I've got a new question. After recongnising that the python bindings for curses are not fully capable of displaying the unicode-chars I decided to drop curses and shifted to urwid. Now I've got some basic questions in the matter of urwid and twisted. As you may know I'm using a mvc-pattern and I have not discovered a way to combine _and_ start urwid with twisted yet. Maybe someone who already worked with urwid can give me a small hint. Code: http://codepad.org/0Hlvmp1b class Input: def __init__(self,term): self.term = term self.size = self.term.get_cols_rows() self.input = urwid.Edit() self.filler = urwid.Filler(self.input) self.canvas = self.filler.render( self.size, focus=True ) self.term.draw_screen(self.size,self.canvas) reactor.addReader(self) def fileno(self): return 0 def logPrefix(self): return 'CursesClient' def doRead(self): keys = self.term.get_input_nonblocking() for key in keys: if key == 'window resize': self.size = self.term.get_cols_rows() elif key == 'enter': text = self.input.get_edit_text() controller.sendMsg('dev',text) self.input.set_edit_text('') else: self.filler.keypress(self.size, key) term = urwid.raw_display.Screen() term.run_wrapper(lambda: Input(term)) Traceback (most recent call last): File "./keckz.py", line 44, in <module> f.startKeckz(f.host, f.view) File "./keckz.py", line 38, in startKeckz controllerKeckz.Kekzcontroller(View).startConnection(host,23002) File "/home/arch/keckz/trunk/controllerKeckz.py", line 13, in __init__ self.view = interface(self) File "/home/arch/keckz/trunk/urwid_cli.py", line 21, in __init__ self.term.run_wrapper(lambda: Input(self.term)) File "/usr/lib/python2.6/site-packages/urwid/raw_display.py", line 212, in run_wrapper return fn() File "/home/arch/keckz/trunk/urwid_cli.py", line 21, in <lambda> self.term.run_wrapper(lambda: Input(self.term)) File "/home/arch/keckz/trunk/urwid_cli.py", line 55, in __init__ self.term.draw_screen(self.size,self.canvas) File "/usr/lib/python2.6/site-packages/urwid/raw_display.py", line 579, in draw_screen assert self.palette.has_key(a), `a` AssertionError: None

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