Mailman 3 June 2007 - 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] Get IP of connecting client in XMLRPC server
by Remy C. Cool April 28, 2013

April 28, 2013

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 … [View More]

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[Twisted-Python] Reconnecting PB Client
by Don Smith Sept. 12, 2007

Sept. 12, 2007

Does anyone have some example code for building a reconnecting PB client? This is what I have now: from twisted.spread import pb from twisted.internet import reactor from twisted.python import util events = pb.PBClientFactory() reactor.connectTCP("localhost", 8789, events) queue = events.getRootObject()

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[Twisted-Python] Win32 IOCPReactor?
by Trent Nelson Sept. 5, 2007

Sept. 5, 2007

I'm new to Twisted. Perusing the documentation, I came across IOCPReactor. It's marked as 'extremely experimental', and it appears it only provides support for TCP events. It seems the last check in to anything IOCPReactor-related was back in 2005. Is it dead? Is anyone using it? Is anyone planning to pick development back up? Were there specific issues with IOCP that impeded development, or just a general lack of people with time, inclination, or Win32-fu? Assuming the IOCPReactor's … [View More]

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[Twisted-Python] Media Resource Control Protocol (MRCP)
by Ivan Uemlianin Sept. 4, 2007

Sept. 4, 2007

Dear All I am interested in writing an MRCP (Media Resource Control Protocol [1]) server. In particular I want to write an MRCP speech recognition resource server as part of my trefnydd [2] project. I am posting here to ask for advice about the network programming part. I shall also be writing an MRCP client (if only to test the server). All the code will be GPL'd. As far as I understand it, an overview of the networking would go like this: An MRCP session between client and server is … [View More]

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[Twisted-Python] Testing with trial, adbapi questions
by Brendon Colby July 24, 2007

July 24, 2007

Greetings, I've begun moving an application I wrote from asynchat to twisted. I've got basic functionality, I've converted my DB stuff to adbapi and have begun writing unit tests. I have a few questions that I haven't been able to get answered through the API docs, twisted.words protocol code, mailing list posts etc. I'd be very grateful for some assistance! 1. Right now I'm defining my dbPool in my factory init, and running a method to load some data from the DB. I've copied the IRC … [View More]BasicServerFunctionalityTestCase and modified it for my use: class BasicServerFunctionalityTestCase(unittest.TestCase): def setUp(self): self.f = StringIOWithoutClosing() self.t = FileWrapperThatWorks(self.f) # I need this to return an IPv4Address! self.p = sserverd.SServerProtocol() self.p.factory = sserverd.SServerFactory(self.p) self.p.makeConnection(self.t) self.p.factory.dbPool.start() def tearDown(self): self.p.factory.dbPool.close() def check(self, s): self.assertEquals(self.f.getvalue(), s) def testSendDeveloperID(self): self.p.lineReceived('{%s:"PG"}\0' % sserverson.base10toN(104)) self.check("test\0") I've gotten past the database threads hanging open by running start() and close() manually. Now, my database callbacks that load necessary data appear to be getting called AFTER my test runs. I know they're getting called, but when the above test runs, the required data structure is empty. What am I missing here? 2. I'm having a bit of trouble wrapping my head around adbapi. Prior to it, one thing I would do is gather data and return a row, as in, the method "developerExists()" would check the DB and return row[0][0] or something (a bool). Now it seems as though I have to preload this data and check against that. Can I replicate this behavior with adbapi? Is there a better way than having to preload ALL my data up front? How can I get any data from the DB like this: data = getSomethingFromDB() I'm suspicious that I need to adopt a new paradigm here, but am having difficulty seeing past the old way of doing things! 3. I have some methods (as I pointed out in #1) that load data. With adbapi, it appears that I have to do this: def _loadDevelopers(self,results): for result in results: developerID = result[2] ... self.addDeveloper(Developer(authHost,authUrl,developerID,self,rc4key, postHost,postUrl)) def loadDevelopers(self): self.dbPool.runQuery("select * from developers where active=1").addCallback( self._loadDevelopers).addErrback(printError) # Before, I would just load my data here! Is this correct? i.e. a DB method that gets called, each having a corresponding callback method that does the real work? (This seems sort of a pain to me...) I feel as though I'm close to "getting it" (twisted in general, adbapi) but feel that I have yet to connect some key pieces of information. 4. I was digging through the adbapi code, and it appears that the only type of result set I can get is a tuple (because only cursors are used...). Is there a way I can get a dictionary returned, keys are column names? i.e. a MySqlDB.fetch_row(how=1). I'm just not seeing how I can do this with adbapi or, rather, how I can pass through to the MySqlDB module to get this type of result set. 5. I've always run my application using DJB's daemontools (http://cr.yp.to/daemontools.html). Is there an incredibly compelling reason to switch to using twistd? It seems to have some pretty neat features, but I'm just not 100% sure I want to give up daemontools yet. Thanks! Brendon Colby [View Less]

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[Twisted-Python] How to receive a big stream data?
by steven wang July 20, 2007

July 20, 2007

Dear all, I'm using the Twisted to write a socket server. I has a problem in the socket server. I could not receive a big size data when the data size is bigger then the connection buffersize. The protocol description: First, Client send data head to Server. Head Format: ABC,123456,XXX,XXX,XXX^ Second, Client send big data to Server, the big data is stream data. After Server received the big data and then save it to database. My problem source code : ========================================… [View More]

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[Twisted-Python] Flash AMF and Twisted
by Arnar Birgisson July 16, 2007

July 16, 2007

Hi all, Re. this message: http://twistedmatrix.com/pipermail/twisted-python/2007-May/015373.html Has any work been done here? I'm facing a project that requires two-way communication between a Flex/Apollo app and a Twisted server. In my initial tests I used http and comet-like techniques but I'm not sure they are the most efficient way. I'm willing to help with the project - I've already dabbled a little in the DjangoAMF stuff. Arnar

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[Twisted-Python] profiling twisted
by Markus Schiltknecht July 4, 2007

July 4, 2007

Hi, first of all, thank you very much for this great peace of software, I'm using twisted for many different projects and really enjoy it's clean and simple design. Now, I'm wondering if there's a profiling tool, which can quickly tell me what events are blocking my server. I have even deferred the file I/O to separate threads, as I've suspected them to make the server behave poorly when under load. But there still seems to be something blocking... What do you use to find the callbacks … [View More]

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[Twisted-Python] Open Source Twisted Email Server
by Ram Peters July 2, 2007

July 2, 2007

Is there a Open Source Twisted Email Server that have been implemented? thnx.

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