Mailman 3 May 2006 - Twisted

[Twisted-Python] signal handlers and threads
by Manlio Perillo May 12, 2006

May 12, 2006

Hi. I have written a small module for sending signals to a "foreign" Python process on Windows 2000/XP. The trunk is on http://svn.berlios.de/svnroot/repos/pykill32/trunk In this way I can send KILL, TERM and so, like in a POSIX system. This works by creating a thread on the remote process (yes, Windows allow this...) and let it call the function "raise" from the MSVCR71 DLL. This seems to work fine, and now I can stop a Twisted process with kill.py TERM pid (does twistd save the pid in a … [View More]

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Re : [Twisted-Python] Multiple thread pools
by Stéphane Brault May 12, 2006

May 12, 2006

Hi, I can see now how 'untwisted' my threads concerns are, please forget my newbie ununderstanding ;-) Still, I need to ensure that I won't have more than x similar calls at a time. Is there a way, maybe using some of the deferred classes (deferredqueue,..) to ensure that there is no more than x simultaneous similar calls (wrapped in deferreds), the others being pending, until one is finished. My question might be stupid, but I'm quite new to twisted and the way to implement this … [View More]

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[Twisted-Python] How to stop a TCP server without stoping the reactor?
by xuan tang May 11, 2006

May 11, 2006

I am trying to create a TCP server using twisted reactor. I want to stop the server from accepting TCP bind requests (and restart it later), but for some reason I don't want to use reactor.stop(). Is there another way to do it? Thanks, Xuan --------------------------------- Yahoo! Messenger with Voice. PC-to-Phone calls for ridiculously low rates.

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[Twisted-Python] cred and stateless protocols
by Manlio Perillo May 10, 2006

May 10, 2006

Hi. Stateless protocols like HTTP use sessions for client authentication. The session is created by the server and the client should supply it at each request. The question is: does cred support this type of authentication? Thanks Manlio Perillo

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[Twisted-Python] Multiple thread pools
by Stéphane Brault May 10, 2006

May 10, 2006

Hi, I want to use twisted to run a server that is also a SOA client: I developp a scheduler that schedule calls to a web service regularly, tasks may be added or terminated. The web service has different calls and each task calls a specific call (too many calls in that sentence ;-)) and then update a database. The fact is that I can only have a maximum number of thread per call, I was wondering if I could have a thread pool per type of call, feeding it with my scheduled tasks and being … [View More]

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[Twisted-Python] how to quickly set a ad hoc FTP server using Twisted
by Andy Leszczynski May 9, 2006

May 9, 2006

I have a M$ Windows box where I need to start a ad hoc FTP server, how can I do that quickly? Thx, A.

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[Twisted-Python] how to only accept local computer requests?
by Michael Li May 9, 2006

May 9, 2006

Hi, I have a python server with twisted framework running 24x7. I want to have a config file to setup accepting local computer requests or remote computer requests. If the config file exists, it only accepts local computer request, does not accept requests from other computers. If the config file does not exist, it accepts requests from any computers. Is there any easy way to do it ? Best regards. Michael Li ========== This email message and any attachments are for the sole use of the … [View More]

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[Twisted-Python] Installing Zope Interface on a SUN without compiler?
by Torbjörn Einarsson May 8, 2006

May 8, 2006

Hi, I am running twisted-1.3 on some SUN machines, and haven't changed since I couldn't install the Zope Interface without a compiler. This is unfortunate, since there is no compiler on the machines, and the rest of twisted is installable without a compiler. The Zope interface is now a part of the sumo distribution, but it seems that it needs a compiler in this case as well. Does anyone know a simple way of installing the Zope Interface without a compiler? Thanks, Torbjörn Einarsson

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[Twisted-Python] newpb 0.0.1 is released!
by Brian Warner May 8, 2006

May 8, 2006

I'm pleased to announce that the first alpha release of "newpb", a ground-up rewrite of twisted's native RPC protocol, is now available. Years in the making, newpb offers a variety of new features, more flexible serialization than oldpb, a better security model, and the potential (not yet achieved) to be faster. For a larger list of new features, take a look at the newpb wiki page[1]. The release itself is currently available from my web directory[2]. At some point in the near future, it … [View More]should also be available from the Twisted downloads directory, and from the download mirror sites as well. To use the release you will have to install it with the usual 'setup.py install' incantation: it adds a 'twisted.pb' module to your regular twisted installation, and as such it won't work if you just add the unpacked directory to your PYTHONPATH. Please note that this is an ALPHA release. Think of it as a technology preview. The wire protocol is *not* stable yet, which means that a newpb-0.0.1 client is unlikely to be able to talk to a newpb-0.0.2 server, etc. Don't deploy it anywhere unless you will be able to upgrade both ends of the wire in the future. There are likely to be significant bugs (including security holes) present, and some major design decisions still remain to be settled. For production systems, please continue to use oldpb (aka twisted.spread, as distributed in TwistedCore) for the forseable future. That said, it's high time that people get a chance to play with this code. An earlier version of it leaked into the TwistedCore-2.2.0 release before anyone could catch it (but truth be told the code there is almost identical to this 0.0.1 release), but apart from that it has been languishing in SVN[3] for far too long. I think I've been working on this intermittently for three years, hopefully with other people involved we can get this thing rolling and usable in a non-bounded amount of time. The top-level "Getting Started" documentation, with examples, is in doc/pb/using-pb.xhtml, of which a lore-rendered version is in my newpb webspace[4]. There are a number of protocol specification documents in there too. There are also lists of outstanding jobs and open design questions in doc/pb/*. The 8.5kloc of code lives in twisted/pb/*, along with an additional 4.7kloc in the 229 unit tests. Naming: the name is still in flux. We've been using "newpb" as a working title, to distinguish it from "oldpb" (which is the twisted.spread that's been shipping in TwistedCore since forever). "pb2" is another working title. It will probably have some new name in the future, hopefully one which makes its purpose more immediately obvious. The point right now is to work on the functionality, not the name. In the long run this is intended to replace oldpb/twisted.spread, but not this month. So don't worry about the name too much for now. When filing bugs and tickets, if you see a 'pb2' component in Trac, please use that. Otherwise please use the 'pb' component and include "newpb" or "pb2" in the title. Discussions here on the twisted-python mailing list or in the #twisted IRC channel on freenode.net are also appropriate. Have an Alice, Bob, and Carol-ific day, -Brian [1]: http://twistedmatrix.com/trac/wiki/NewPB [2]: http://twistedmatrix.com/~warner/newpb/TwistedPb2-0.0.1.tar.bz2 [3]: svn://svn.twistedmatrix.com/svn/Twisted/tags/releases/pb2/0.0.1 [4]: http://twistedmatrix.com/~warner/newpb/ [View Less]

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[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com May 7, 2006

May 7, 2006

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