Mailman 3 November 2004 - 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] Simple multiplex-relayer with twisted.protocols.smtp?
by bostik＠stinghorn.com Dec. 1, 2004

Dec. 1, 2004

Good day, hackers. I'm trying to implement a rather simple, localhost-bound mail relay with Twisted. The setup is follows: Internet --- MTA -> multiplexer (*) -> parallel filters -> MTA -> dest. Multiplexer marked with (*) is my doing. Filters are independent systems which accept mail according to destination domain and do their magic according to domain-wide settings. Different domains can have completely separate configs and even backends. I have read and tried to use … [View More]existing sample from http://twistedmatrix.com/pipermail/twisted-python/2003-October/005885.html and the surrounding thread, but unfortunately have not been so far able to get the system working. Basically the system should be rather trivial: accept everything, regardless of sender or recipient (frontal MTA has already bounced incorrect mails). Check recipient and forward to matching filter set. Use smtp.ESMTP for inbound, smtp.SMTPClient for outbound. However, the code snippet below freaks out. It now accepts unconditionally both sender and recipient but issuing DATA causes an immediate stacktrace with the following last error: File "/usr/lib/python2.3/site-packages/twisted/protocols/smtp.py", line 625, in do_DATA assert self.delivery exceptions.AssertionError: Tracing the problem, it is apparent that there is no delivery method in use and incidentally, this was apparently the bugging reason in the original (a year old now) problem. Call me stupid but I couldn't fix this by following the example and responses. Version of Twisted in use: 1.3, as packaged for Debian. (In time we'll get 2.0 as well.) Any help will be appreaciated. The leap from very simple Finger examples to smtp parts is rather long and steep... Code: [--snip--] #!/usr/bin/python from twisted.internet import reactor, protocol, defer from twisted.protocols import smtp from twisted.python import log import sys class RelayUtility: """Utility class for holding runtime values""" def __init__(self): self.maxconns = 20 self.active = 0 class RelayMessage(smtp.IMessage): def __init__(self): smtp.IMessage.__init__(self) self.msg = [] class RelayProtocol(smtp.ESMTP): """Relayer; sucks the mail in""" def __init__(self): self.util = util # Normal operations smtp.ESMTP.__init__(self) self.host = "nowhere.dot.invalid" def connectionLost(self, reason): self.util.active -= 1 def connectionMade(self): # The easiest way. Increments upon connection, decrements # upon disconnection; In case of full queue, just kick the client self.util.active += 1 if (self.util.active <= self.util.maxconns): smtp.ESMTP.connectionMade(self) else: self.sendCode(430, "Queue full. Try again later.") self.transport.loseConnection() # This can't be right def validateFrom(self, helo, origin): return smtp.Address(origin, None) # This is certainly not right, DATA barks def validateTo(self, user): return RelayMessage class RelayFactory(smtp.SMTPFactory): protocol = RelayProtocol util = RelayUtility() log.startLogging(sys.stdout) reactor.listenTCP(10025, RelayFactory()) reactor.run() [--snap--] -- Mika Boström \-/ "World peace will be achieved Bostik(a)stinghorn.com X when the last man has killed Software slave /-\ the second-to-last." -anon? [View Less]

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Re: [Twisted-Python] PyMedia & Tk - based mp3 sound recorder
by eltronic＠juno.com Nov. 30, 2004

Nov. 30, 2004

On Tuesday 30 November 2004 01:55, Petri Savolainen wrote: > I've tried to write a simple sound recorder for python. Basically, it > just reads sound from mic or line in, and encodes it to mp3 on the > fly. the use of psyco might actually be slowing you down. it can't help w/pymedia being a compiled extension and the UI isn't a likely source of bottleneck. also, you should subclass from object to give psyco something to work with. pymedia didn't recognize my sound device or I … [View More]

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[Twisted-Python] PyMedia & Tk - based mp3 sound recorder
by Petri Savolainen Nov. 30, 2004

Nov. 30, 2004

I've tried to write a simple sound recorder for python. Basically, it just reads sound from mic or line in, and encodes it to mp3 on the fly. See http://pymedia.org/tut/src/voice_recorder.py.html for a simple example I've taken the pymedia recorder code from. Works nicely - but no GUI etc. of course. I've added a very simple Tk-base GUI using twisted, using task.LoopingCall to drive the recorder loop that reads chunks data from sound device and encodes them. The problem is that the … [View More]sound is now garbled - it sounds as if the loop is not fast enough or it's dropping some sound data. Apart from twisted and Tk integration, the code should be essentially the same as the original example that works fine. I''ve tried with different task looping frequencies and even added Psyco optiomization to the code, and all this has made but tiny difference -and my PC is an AMD 2400+ with plenty of memory so I would think speed is not the issue here; the encoding preferences are mono, 22050Hz and 64kbit/s. The source code (about 120 lines in all) is attached - any advice or improvement suggestions would be greatly appreciated. Thanks, Petri import time, sys, urlparse, tkFileDialog import Tkinter as Tk import pymedia.audio.sound as sound import pymedia.audio.acodec as acodec from twisted.internet import task from twisted.internet import reactor, tksupport # constants STOPPED = 0 RECORDING = 1 # input params insrc = "VIA AC'97 Audio (WAVE)" format = sound.AFMT_U16_LE # encoder parameters params = { 'id': acodec.getCodecId("mp3"), 'bitrate': 64000, 'sample_rate': 22050, 'channels': 1 } class Recorder: def __init__(self, params=params): self.task = task.LoopingCall(self.process) self.status = STOPPED self.encoder= acodec.Encoder(params) # determine input source inputid=None for d in sound.getIDevices(): if d['name'] == insrc: inputid = d['id'] if not inputid: raise Exception("Invalid or no input source") self.snd= sound.Input(22050, 1, format, inputid) def process(self): #while 1: # snd.getPosition()<= secs: s= self.snd.getData() if s and len(s): for fr in self.encoder.encode(s): # We definitely should use mux first, but for # simplicity reasons this way it'll work also self.outfile.write(fr) #else: # time.sleep( .001 ) def start(self, file): self.outfile= file self.snd.start() self.task.start(.0000001) def stop(self): # Stop listening the incoming sound from the microphone or line in self.task.stop() self.snd.stop() self.outfile.close() class RecorderGUI: def __init__(self, root): frame = Tk.Frame(root) self.frame=frame self.startB = Tk.Button(frame, padx=20, pady=2, text="Start", command=self.startRecording) self.stopB = Tk.Button(frame, padx=20, pady=2, text="Stop", command=self.stopRecording, state=Tk.DISABLED) self.quitB = Tk.Button(frame, padx=20, pady=2, text="Quit", command=self.quitApplication) self.startB.pack(side=Tk.LEFT) self.stopB.pack(side=Tk.LEFT) self.quitB.pack(side=Tk.RIGHT) frame.pack() def setRecorder(self,recorder): self.recorder = recorder def startRecording(self): file = tkFileDialog.asksaveasfile(title="Enter file to save to") self.stopB['state'] = Tk.NORMAL self.startB['state'] =Tk.DISABLED self.recorder.start(file) def stopRecording(self): self.recorder.stop() self.stopB['state'] = Tk.DISABLED self.startB['state'] = Tk.NORMAL def quitApplication(self): if self.recorder.status == RECORDING: self.recorder.stop() reactor.stop() def run(): import psyco psyco.full() guiroot = Tk.Tk() guiroot.protocol("WM_DELETE_WINDOW", reactor.stop) guiroot.title("Sound recorder") tksupport.install(guiroot) gui=RecorderGUI(guiroot) gui.recorder = Recorder() reactor.run() if __name__ == '__main__': run() [View Less]

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[Twisted-Python] Reminder: PyCon 2005 call for proposals is open
by Itamar Shtull-Trauring Nov. 30, 2004

Nov. 30, 2004

http://www.python.org/pycon/2005/cfp.html

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[Twisted-Python] want to freeze twisted
by Iap Nov. 29, 2004

Nov. 29, 2004

I have a twistd-based web server by running a web.tap file like this: $twistd -o -f web.tap -l /var/log/twistd.log Great, it works. Then, I use cx_freeze to freeze it. $FreezePython --install-dir freeze_twistd twistd That is ok, lots of *.so have been copied into freeze_twistd/*. After moving those all into another machine, and run the executable $freeze_twistd/twistd I got complains on missing some modules. I realized that those twisted/* don't be freezed. Then, I try: $… [View More]

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[Twisted-Python] Weekly Bug Summary
by James Y Knight Nov. 29, 2004

Nov. 29, 2004

Bug summary ______________________ Since 2004-11-20 17:24:10.440000: Bugs opened: 17 Bugs closed: 19 Total open bugs: 315 (-2) New / Reopened Bugs ______________________ make epydoc stop ignoring zope interfaces (2 days ago) http://www.twistedmatrix.com/bugs/issue794 opened by radix [TRIAL] Unhandled exception in trial at result reporting time (yesterday) http://www.twistedmatrix.com/bugs/issue800 opened by exarkun Intermittent twisted.trial.test.test_util.… [View More]

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[Twisted-Python] WebDav example?
by Thomas Weholt Nov. 29, 2004

Nov. 29, 2004

Hi, I've seen the akadav twisted-based webdav module, but there's no documentation or examples in the archive. Can anybody show me how to use it to server files from a specificed directory? -- Mvh/Best regards, Thomas Weholt http://www.weholt.org

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Re: [Twisted-Python] How to use .rpy do upload ?
by Leon Nov. 29, 2004

Nov. 29, 2004

<form method="POST" enctype="multipart/form-data" action="test.rpy"> <input type="file" name="filename"> <input type="submit"> </form> #rpy script from twisted.web.resource import Resource class test(Resource): def render_POST(self,request): f = open("/root/basic_daemon/htdocs/test/test.txt","wb") #absolute path,the path must use chmod modify authorization f.write(request.… [View More]

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