Mailman 3 November 2006 - Twisted

[Twisted-Python] OpenID ?
by Jonathan Vanasco 08 Nov '06

08 Nov '06

Has anyone implemented an OpenID server in twisted? I need to roll out OpenID support in my application. I'm finding a some things I don't like in the Python OpenID implementation thats out there, so I'm hoping that there might be a twisted version already? // Jonathan Vanasco | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | FindMeOn.com - The cure for Multiple Web Personality Disorder | Web Identity Management and 3D Social Networking | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | RoadSound.com - Tools For Bands, Stuff For Fans | Collaborative Online Management And Syndication Tools | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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[Twisted-Python] PyQt4 Object acting like None.
by Nabil 07 Nov '06

07 Nov '06

Hello everyone. I'm having some trouble with a program I'm writing. The program uses PyQt4 and qt4reactor. When the program is started it requests a file from the server that it downloads and saves onto the client machine. The file is a python module that gets dynamically loaded and used in the program. All of this works fine on a Max OS X 10.4.6 using Python 2.4.4 and Qt-4.1.0. When I try to run the program on window I get this error message: File "C:\path\to\downloaded\module", line X, in init self.panel = PhoneBookPanel(self, parent.getWiget()) exceptions.TypeError: 'NoneType' object is not callable parent: instance of QMainWindow parent.getWidget: return a QWidget that will be the parent widget of self.panel self.panel is a QWidget instance that will be added to parent.getWidget() The thing thats really confusing me is that although it works perfectly on a mac it crashes on windows using the same version of Qt and Python!!

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[Twisted-Python] DeferredQueue Unstable
by Sean Roark 06 Nov '06

06 Nov '06

The API says the DeferredQueue class from the defer module is unstable? Any description about why it is unstable? I would like to use it else I will have to write my own version that is sure to 'unstable'. -- Sean Roark

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[Twisted-Python] Twisted and Torrent Support
by Chas. 06 Nov '06

06 Nov '06

I am looking for both client and server support for bittorrent that is integrated with Twisted (as are the ftp, etc). I was wondering if any one knows of just such support. Thanks, Chaz.

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[Twisted-Python] Problem with qt4reactor.py
by IloChab 06 Nov '06

06 Nov '06

I'm trying to run a simple application with Twisted and Qt4, but I get a really strange behavior from my main script. I can't understand if it's a python or a twisted or a Qt4 problem I'm using this reactor: http://twistedmatrix.com/trac/attachment/ticket/1770/qt4reactor.py Now, if I run this: # >>>>>>>>> import qt4reactor import sys from PyQt4 import QtGui from winIum import Window def main(): app = QtGui.QApplication(sys.argv) qt4reactor.install(app) MainWindow = QtGui.QMainWindow() win = Window(MainWindow) MainWindow.show() from twisted.internet import reactor reactor.run() # <<<<<<<< my window shows and run correctly. If I run this: # >>>>>>>>>>>>> import qt4reactor import sys from PyQt4 import QtGui from winIum import Window def creApp(): app = QtGui.QApplication(sys.argv) qt4reactor.install(app) return app def creWin(): MainWindow = QtGui.QMainWindow() win = Window(MainWindow) MainWindow.show() def main(): app = creApp() creWin() from twisted.internet import reactor reactor.run() # <<<<<<<<<<<<< my window doesn't show and the script doesn't stop but remains trapped in some gui loop. What's the problem I can't see?? Thank you in advance for any help. Licia

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[Twisted-Python] If lineReceived returns deferred, then connection is dropped and this deferred given as error message
by Marcin Kasperski 06 Nov '06

06 Nov '06

I am observing the twisted behaviour which seems rather strange to me. In short: if lineReceived returns some deferred, then the whole connection is aborted, moreover, this deferred is returned as error message. Longer story (the code pieces extracted from quite large app, I have not yet tried writing small example) ### Crucial code fragments class SomeProtocol(basic.LineReceiver): (...) def lineReceived(self, line): (...) return defer.succeed(997) # magic value I can recognize easily class SomeFactory(protocol.ReconnectingClientFactory): (...) def clientConnectionLost(self, connector, reason): logger.warn("Connection lost. Reason: %s\nTraceback: %s" % ( reason.getErrorMessage(), reason.getTraceback())) protocol.ReconnectingClientFactory.clientConnectionLost(self, connector, reason) reactor.connectTCP(HOST, PORT, SomeFactory(...)) reactor.run() ### Things seen in log file myapp : WARNING Connection lost. Reason: <Deferred at 0xB551E1ECL current result: 997> Traceback: Traceback (most recent call last): Failure: <type 'instance'>: <Deferred at 0xB551E1ECL current result: 997> (you recognized this 997, didn't you?) ### Extra info 1. Removing return defer.succeed() from lineReceived helps. 2. I wanted to return deferreds from lineReceived because I wanted to write unit tests testing my factory object (and in some cases to check whether all worked correctly required waiting for some spawned deferred calls).

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[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com 05 Nov '06

05 Nov '06

Bug summary ______________________ Summary for 2006-10-29 through 2006-11-05 Bugs opened: 17 Bugs closed: 1 Total open bugs: 777 (+16) |== Type Changes |== Priority Changes |== Component Changes |Defect: +6 |Highest: +1 |Core: +8 |Enhancement: +8 |Normal: +15 |Lore: +1 |Task: +2 |Pydoctor: +1 |Web: +1 |Web2: +1 |Website: +1 |Words: +3 New / Reopened Bugs ______________________ ===== Highest ===== [#2203] More complete IRC Server implementation (opened by colin) enhancement words http://twistedmatrix.com/trac/ticket/2203 ===== Normal ===== [#2202] The News on the front page is no longer news. (opened by jml) defect website http://twistedmatrix.com/trac/ticket/2202 [#2204] IRCUser shouldn't send topic if there isn't one. (opened by colin) defect words http://twistedmatrix.com/trac/ticket/2204 [#2205] Simplification of Application creation (opened by jerub) enhancement core http://twistedmatrix.com/trac/ticket/2205 [#2206] Update standard for unit tests (opened by jml) task core http://twistedmatrix.com/trac/ticket/2206 [#2207] lore tarball has files with wrong end of line encoding (opened by thomasvs) enhancement lore http://twistedmatrix.com/trac/ticket/2207 [#2208] a lot of examples have different shebang lines (opened by thomasvs) enhancement core http://twistedmatrix.com/trac/ticket/2208 [#2209] pydoctor has problems with moresystems' using an absolute url prefix (opened by mwh) defect pydoctor http://twistedmatrix.com/trac/ticket/2209 [#2210] pydoctor system pickles that use moresystems can't be loaded (opened by mwh) defect pydoctor http://twistedmatrix.com/trac/ticket/2210 [#2211] unit tests should not have shebang lines (opened by thomasvs) enhancement web http://twistedmatrix.com/trac/ticket/2211 [#2212] Remove mention of threadable.init from the threading chapter (opened by radix) enhancement core http://twistedmatrix.com/trac/ticket/2212 [#2213] Several deprecated twisted.protocols.* modules point to old twistedmatrix.com/projects/ webpages (opened by dreid) task core http://twistedmatrix.com/trac/ticket/2213 [#2214] twisted.web2.xmlrpc.XMLRPC._cbRender uses a bare except and doesn't log the failure. (opened by dreid) enhancement web2 http://twistedmatrix.com/trac/ticket/2214 [#2215] If lineReceived returns true value, the connection is shut down and this value used as an error message (opened by Mekk) defect core http://twistedmatrix.com/trac/ticket/2215 [#2216] Coding Standard update: Lines should not have trailing whitespace (opened by jml) enhancement core http://twistedmatrix.com/trac/ticket/2216 [#2217] Coding Standard is fairly crusty (opened by jml) defect core http://twistedmatrix.com/trac/ticket/2217 [#2218] Add timeout to XMPP IQ requests (opened by ralphm) enhancement words http://twistedmatrix.com/trac/ticket/2218 Closed Bugs ______________________ ===== Normal ===== [#2069] Make nevowwriter the default (opened by jml, closed by mwh, fixed) enhancement pydoctor http://twistedmatrix.com/trac/ticket/2069

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[Twisted-Python] SMTP with authentication
by Alvin Wang 04 Nov '06

04 Nov '06

Hi, I am new to twisted but google and the Oreilly book have failed me. I am trying to create a client to send to a smtp server. All the examples that I have found only work if your SMTP server does not require authentication. I am guessing that I need to use http://twistedmatrix.com/documents/current/api/twisted.mail.smtp.ESMTPSende… Unfortunately, I can find no examples that use it. I did find something from 2004 http://twistedmatrix.com/pipermail/twisted-python/2004-April/007433.html That is prior to the commit for ESMTPSenderFactory http://twistedmatrix.com/pipermail/twisted-commits/2004-July/011608.html Thanks -- Alvin

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Re : Re : [Twisted-Python] Problem with ftp upload
by Stéphane Brault 03 Nov '06

03 Nov '06

Thanks Thomas, indeed I mentioned the wrong ticket number, my mistake, I'm already getting flogged for that ;-) I'd be glad to get your FTP access class. Stéphane ----- Message d'origine ---- De : Thomas Jacob <jacob(a)internet24.de> À : Twisted general discussion <twisted-python(a)twistedmatrix.com> Envoyé le : Vendredi, 3 Novembre 2006, 11h52mn 08s Objet : Re: Re : [Twisted-Python] Problem with ftp upload On Fri, 2006-11-03 at 09:54 +0000, Stéphane Brault wrote: > Thanks Thomas, > > my problem is that I already applied the patch and it still doesn't work. That's what I don't understand. You were mentioning a different ticket number... Anyway, you seem to be waiting for the first storeFile deferred (Consumer) to indicate successful transmission, I'm using the second (Control-Connection), maybe you simply quit to early. If you want, I can mail you my FTP access class for uploading and downloading.... > Stéphane > > > ----- Message d'origine ---- > De : Thomas Jacob <jacob(a)internet24.de> > À : Twisted general discussion <twisted-python(a)twistedmatrix.com> > Envoyé le : Vendredi, 3 Novembre 2006, 10h32mn 52s > Objet : Re: [Twisted-Python] Problem with ftp upload > > There is bug in storeFile's Consumer interface > (Cf. report + patch http://twistedmatrix.com/trac/ticket/1794 ) > > As for disconnecting, why not call ftpClient->quit() after > your upload has finished? > > On Thu, 2006-11-02 at 20:57 +0000, Stéphane Brault wrote: > > Hi, > > > > I'm using twisted ftp api to upload files, I also added the ticket 1914 patch. > > Here is my code : > > class myFTP(object): > > > > def __init__(self, login, password): > > self.creator = ClientCreator(reactor, FTPClient, login, password, passive=0) > > > > > > def connectionFailed(self, f): > > print 'connection error' > > > > > > def success(self, response): > > print 'Success' > > > > > > def fail(self, error): > > print 'Erreur:' + error > > > > > > def doOperation(self, operation, data): > > d = self.creator.connectTCP(FTP_ADDRESS, 21) > > if operation == 'addItems': > > return d.addCallback(self.inventoryUpload, data).addErrback(self.connectionFailed) > > elif .... > > > > > > > > def _upload(self, consumer, file): > > return FileSender().beginFileTransfer(file, consumer).addCallback(lambda _: consumer.finish()).addCallback(lambda _: file.close()) > > > > > > def inventoryUpload(self, ftpClient, file): > > name = '/stock/entrees/export_items_' + encodeDate(datetime.datetime.now()) + '.txt' > > return ftpClient.storeFile(name)[0].addCallback(self._upload, file).addCallbacks(self.success, self.fail) > > > > .... > > > > The operation is called this way: > > call = myFTP(login, password) > > call.doOperation('addItems', StringIO(data)) > > > > The file is created but empty, it seems that _upload is not called, I can't understand why, any hint ? > > I was also wondering how to disconnect once my work is done, I don't think keeping open connections is a good thing. > > > > Thanks, > > > > Stéphane > > > > > > > > > > > > > > > > > > ___________________________________________________________________________ > > Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! > > Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses > > http://fr.answers.yahoo.com > > > > _______________________________________________ > > Twisted-Python mailing list > > Twisted-Python(a)twistedmatrix.com > > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python > > _______________________________________________ > Twisted-Python mailing list > Twisted-Python(a)twistedmatrix.com > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python > > > > > > > > > > ___________________________________________________________________________ > Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! > Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses > http://fr.answers.yahoo.com > > _______________________________________________ > Twisted-Python mailing list > Twisted-Python(a)twistedmatrix.com > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python _______________________________________________ Twisted-Python mailing list Twisted-Python(a)twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python ___________________________________________________________________________ Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses http://fr.answers.yahoo.com

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Re : [Twisted-Python] Problem with ftp upload
by Stéphane Brault 03 Nov '06

03 Nov '06

Thanks Thomas, my problem is that I already applied the patch and it still doesn't work. That's what I don't understand. Stéphane ----- Message d'origine ---- De : Thomas Jacob <jacob(a)internet24.de> À : Twisted general discussion <twisted-python(a)twistedmatrix.com> Envoyé le : Vendredi, 3 Novembre 2006, 10h32mn 52s Objet : Re: [Twisted-Python] Problem with ftp upload There is bug in storeFile's Consumer interface (Cf. report + patch http://twistedmatrix.com/trac/ticket/1794 ) As for disconnecting, why not call ftpClient->quit() after your upload has finished? On Thu, 2006-11-02 at 20:57 +0000, Stéphane Brault wrote: > Hi, > > I'm using twisted ftp api to upload files, I also added the ticket 1914 patch. > Here is my code : > class myFTP(object): > > def __init__(self, login, password): > self.creator = ClientCreator(reactor, FTPClient, login, password, passive=0) > > > def connectionFailed(self, f): > print 'connection error' > > > def success(self, response): > print 'Success' > > > def fail(self, error): > print 'Erreur:' + error > > > def doOperation(self, operation, data): > d = self.creator.connectTCP(FTP_ADDRESS, 21) > if operation == 'addItems': > return d.addCallback(self.inventoryUpload, data).addErrback(self.connectionFailed) > elif .... > > > > def _upload(self, consumer, file): > return FileSender().beginFileTransfer(file, consumer).addCallback(lambda _: consumer.finish()).addCallback(lambda _: file.close()) > > > def inventoryUpload(self, ftpClient, file): > name = '/stock/entrees/export_items_' + encodeDate(datetime.datetime.now()) + '.txt' > return ftpClient.storeFile(name)[0].addCallback(self._upload, file).addCallbacks(self.success, self.fail) > > .... > > The operation is called this way: > call = myFTP(login, password) > call.doOperation('addItems', StringIO(data)) > > The file is created but empty, it seems that _upload is not called, I can't understand why, any hint ? > I was also wondering how to disconnect once my work is done, I don't think keeping open connections is a good thing. > > Thanks, > > Stéphane > > > > > > > > > ___________________________________________________________________________ > Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! > Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses > http://fr.answers.yahoo.com > > _______________________________________________ > Twisted-Python mailing list > Twisted-Python(a)twistedmatrix.com > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python _______________________________________________ Twisted-Python mailing list Twisted-Python(a)twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python ___________________________________________________________________________ Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses http://fr.answers.yahoo.com

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