Mailman 3 November 2015 - Twisted

[Twisted-Python] Twisted Web at 630k reqs/sec
by Tobias Oberstein Nov. 16, 2015

Nov. 16, 2015

Hi, maybe it's of interest how far it's possible to drive Twisted Web on modern multi-core CPUs. Here are 2 data points from measuring: * 627990 HTTP requests/s at 360 us avg latency * 12.6 GB/s HTTP reply traffic This is using 40 Xeon cores and serves HTTP over loopback TCP to 8 threads of wrk. The Twisted Web resource served was https://github.com/crossbario/crossbarexamples/blob/master/benchmark/web/my… Details, figures and more results are here: https://github.com/crossbario/crossbarexamples/tree/master/benchmark/web Cheers, /Tobias

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[Twisted-Python] HTTP/2 and Twisted
by Cory Benfield Nov. 16, 2015

Nov. 16, 2015

All, With the work on #7860 nearly done, Twisted should be in a good place to have a HTTP/2 implementation. There’s currently a Trac ticket (#7460) for adding HTTP/2 support to twisted.web, which is obviously a good idea. I’m happy to take on that work. What I want to get a picture for is how much of the Twisted support should live in Twisted itself. Currently I’m planning to base the implementation on Hyper-h2[0]. This is because it seems totally needless to write a new HTTP/2 state machine … [View More]

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[Twisted-Python] How to design REST API with Twisted?
by Wang Yan Nov. 13, 2015

Nov. 13, 2015

Hi, I'm confused about how to design REST APIs with Twisted, especially when my app have to interact with MySQL. Is there any basic design patterns for this kind of situation? Thanks!

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[Twisted-Python] Conch SSH client dropping support for non/pre RFC 4419 clients
by Adi Roiban Nov. 11, 2015

Nov. 11, 2015

Hi, I just want to let you know about a future change in the SSH client implementation. Full details https://twistedmatrix.com/trac/ticket/8100 Basically in order to work with OpenSSH version 6.9 and newer we will break support for very old (2004-2006) SSH servers which do not support RFC 4419 In case you care about Twisted SSH client interacting with very of SSH servers, please take a look and send your feedback over the Trac issue Otherwise, feel free to ignore and enjoy the rest of the … [View More]

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[Twisted-Python] Dumb Logger API question
by Kevin Mcintyre Nov. 11, 2015

Nov. 11, 2015

http://twistedmatrix.com/documents/current/core/howto/logger.html I'm looking at the new-ish logger api and wonder how to log to console as a first step to transitioning. Any pointers? Thanks.

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[Twisted-Python] pyserial on Python3
by Adi Roiban Nov. 8, 2015

Nov. 8, 2015

Hi, We have this ticket which ports twisted.internet.serialport on Python 3 - https://twistedmatrix.com/trac/ticket/8099 I saw that the Python 3 builders don't have pyserial installed. Was this on purpose or just forgetting to also install .[all_non_platform] on the python 3 builders? Thanks! -- Adi Roiban

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[Twisted-Python] The End of Windows XP Support in Twisted 15.5
by Amber "Hawkie" Brown Nov. 7, 2015

Nov. 7, 2015

Hi everyone, We've just removed the Windows XP builder from our buildbot. Many thanks for Tom Prince for keeping it online for so long, but right now, we think it's time to retire targeting XP. Our only current supported Windows platform is Windows 7 x64, with Python 2.7.10, with Python 3.4 and Python 3.5 support coming soon. - Amber

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[Twisted-Python] Specification / RFC of the twisted.conch.ssh.keys.Key.privateBlob implementation
by Adi Roiban Nov. 4, 2015

Nov. 4, 2015

Hi, Does anyone know what specifications / RFC is used for implementing twisted.conch.ssh.keys.Key.privateBlob ? https://github.com/twisted/twisted/blob/trunk/twisted/conch/ssh/keys.py#L577 I could not find the over-the-wire format for private keys... as I supposed that private keys should not be put on the wire, in the first place. I did find a SSH agent draft https://tools.ietf.org/html/draft-ietf-secsh-agent-02#section-1.4.1 but the format is different than the one from the docstring. … [View More]

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[Twisted-Python] How to call a Twisted reactor from a file different from his module?
by Samuel Góngora García Nov. 4, 2015

Nov. 4, 2015

I have a question that could well belong to Twisted or could be directly related to Python. My problem, as the other is related to the disconnection process in Twisted. As I read on this , if I want to I have to perform the following steps: 1-The server must stop listening. 2-The client connection must disconnect. 3-The server connection must disconnect. According to what I read on the previous page to make the first step would have to run the stopListening method. In the example mentioned … [View More]in the web all actions are performed in the same script. Making it easy to access the different variables and methods. For me I have a server and a client are in different files and different locations. I have a function that creates a server, and assigns a protocol and want, from the client protocol in another file, make an AMP call to a method for stop the connector. The call AMP calls the SendMsg command. *class TESTServer(protocol.Protocol): factory = None sUsername = "" credProto = None bGSuser = None slot = None"""Here was uninteresting code.""" # upwards=self.bGSuser, forwarded=True, tx_timestamp=iTimestamp,\ # message=sMsg) log.msg("self.connector") log.msg(self.connector) return {'bResult': True} SendMsg.responder(vSendMsg) def _testfunction(self): logger = logging.getLogger('server') log.startLogging(sys.stdout) pf = CredAMPServerFactory() sslContext = ssl.DefaultOpenSSLContextFactory('key/server.pem',\ 'key/public.pem',) self.connector = reactor.listenSSL(1234, pf, contextFactory = sslContext,) log.msg('Server running...') reactor.run()if __name__ == '__main__': TESTServer()._testfunction()* The class CredAMPServerFactory assign the corresponding protocol. *class CredAMPServerFactory(ServerFactory): """ Server factory useful for creating L{CredReceiver} and L{SATNETServer} instances. This factory takes care of associating a L{Portal} with the L{CredReceiver} instances it creates. If the login is succesfully achieved, a L{SATNETServer} instance is also created. """ protocol = CredReceiver* In the "CredReceiver" class I have a call that assigns the protocol to the TestServer class. I do this to make calls using the AMP method "Responder". * self.protocol = SATNETServer* My problem is that when I make the call the program responds with an error indicating that the connector doesn't belong to CredReceiver attribute object. * File "/home/sgongar/Dev/protocol/server_amp.py", line 248, in vSendMsg log.msg(self.connector)exceptions.AttributeError: 'CredReceiver' object has no attribute 'connector'* How could I do this? Does anyone know of a similar example of that may take note? Thank you. [View Less]

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[Twisted-Python] Building Twisted 13.2.0 packages for RH 7.0
by Kobi Bar Nov. 3, 2015

Nov. 3, 2015

Hi, I need to build twisted 13.2.0 packages for RH 7.0. I downloaded the source from https://pypi.python.org/packages/source/T/Twisted/Twisted-13.2.0.tar.bz2#md…. Currently, I'm able to build only one package "python-twisted-13.2.0-1.x86_64.rpm" (by running the command "python setup.py bdist_rpm") which contains all the sub-projects. How can I build separate package for each twisted sub-project (e.g. conch, core, mail, web, etc...)? I would like to have the following twisted packages at the … [View More]

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[Twisted-Python] INCOMPATIBLE CHANGE: removing dependency on PyCrypto
by Glyph Lefkowitz Nov. 2, 2015

Nov. 2, 2015

There are a few places within Conch which currently export PyCrypto objects as part of a public interface in Twisted. These include: twisted.conch.ssh.keys.Key.keyObject twisted.conch.ssh.keys.objectType I'm working on a ticket - https://twistedmatrix.com/trac/ticket/7413 - to eliminate the dependency on PyCrypto. Right now, in that branch, those objects are Cryptography key objects instead of PyCrypto key objects. It is possible to preserve compatibility with keyObject, and we could … [View More]

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[Twisted-Python] Possible bug
by Chris Norman Nov. 2, 2015

Nov. 2, 2015

Hi all, Using windows 10 with Python 3.5, importing pretty much anything gives me the following error. Not sure if there's something wrong with my configuration or if it's a bug... I seem to remember something a while back, should I file a ticket? Traceback (most recent call last): File "<string>", line 1, in <module> File "C:\python35\lib\site-packages\twisted\internet\reactor.py", line 38, in <module> from twisted.internet import default File "C:\python35\… [View More]

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