Mailman 3 January 2009 - Twisted

[Twisted-Python] Having different tests run with Trial using different reactor implementations ?
by Alessio Pace 29 Jan '09

29 Jan '09

Hi, I would like to know if (but I heard it is..) and how it is possible to run with Trial a test suite where some tests use a reactor implementation and some instead another one.. In fact I have some tests extending Trial's TestCase (hence expecting to use the selector reactor) while some others use the "plain" TestCase and in the setUp() / tearDown() do install/uninstall of the custom reactor I wrote. Running both tests causes using the wrong reactor when another one is expected, so I was thinking about migrating my custom reactor based tests to Trial. Any suggestions? Thanks again in advance. Regards, Alessio Pace.

1 0

[Twisted-Python] A Java protocol on Twisted?
by Alessio Pace 29 Jan '09

29 Jan '09

Hi, recently I was asked if it would be possible to plug a Java protocol in a Twisted-based P2P library I'm working on. Up to now this heterogenous languages integration was not a concern, but apparently the possibility to write an high level protocol in Java for external developers seem to become very important and would otherwise block their choice in using the library.. Could anyone, if have any experience or knowledge, let me know if this is possible and under which conditions? I heard infact that Jython and Twisted are not working together.. Thanks in advance. Best regards, -- Alessio Pace.

2 2

[Twisted-Python] "there is a dmg already for MacOS Why don't you install it?"
by Theron D. Huffman 28 Jan '09

28 Jan '09

"there is a dmg already for MacOS Why don't you install it?" Because the dmg for MacOS states that it is for Python 2.5. I'm running Python 2.6 that I installed from MacPorts. Kindest Regards, Dan Huffman

1 0

[Twisted-Python] "there is a dmg already for MacOS Why don't you install it?"
by Theron D. Huffman 28 Jan '09

28 Jan '09

"there is a dmg already for MacOS Why don't you install it?" Because the dmg for MacOS states that it is for Python 2.5. I'm running Python 2.6 that I installed from MacPorts. Kindest Regards, Dan Huffman

1 0

[Twisted-Python] "there is a dmg already for MacOS Why don't you install it?"
by Theron D. Huffman 28 Jan '09

28 Jan '09

"there is a dmg already for MacOS Why don't you install it?" Because the dmg for MacOS states that it is for Python 2.5. I'm running Python 2.6 that I installed from MacPorts. Kindest Regards, Dan Huffman

1 0

[Twisted-Python] Which twisted should I install?
by Theron D. Huffman 28 Jan '09

28 Jan '09

On the Twisted website there is an 8.2.0 for Python 2.6 on Windows, and an 8.2.0 for Python 2.5 on OS X 10.5. But I got OS X 10.5 running Python 2.6 from MacPorts. Which Twisted should I download and install? Regards, Tokyo Dan

4 3

[Twisted-Python] Getting involved in Python 3.0 porting
by Manuel Alejandro Cerón Estrada 28 Jan '09

28 Jan '09

Hello. This year I'm going to start my graduation project for software engineering and I want to use Python and Twisted. I want to use Python 3.0 but unfortunately, Twisted doesn't support 3.0 yet and I've read that this is not exactly a high priority right now. As this is an open source project, I thought the best thing I can do is to contribute with the porting. Then I have some questions: Is someone leading the porting process? Have you defined a porting strategy? What is the best way in which I can contribute to this? Thanks. Manuel.

4 4

[Twisted-Python] Beginner's question about names and callbacks
by Adan Broderick 28 Jan '09

28 Jan '09

I'm trying to write a program that will call my own function whenever a query to a nameserver times out. I have figured out how to run the DNS server. And I also know how to use filterAnswers(). But how do I catch the "Failure: twisted.names.error.DNSQueryTimeoutError:" messages by adding code to the resolver I've constructed? I've got something like this: class myResolver(client.Resolver): def filterAnswers(self, message): print "answer:",message [snipped code] resolver = myResolver(servers=[('10.0.1.1', 53)]) f = server.DNSServerFactory(clients=[resolver]) reactor.listenTCP(4053, f) reactor.run() But I don't see where to add an addErrback call. The important thing here is that I'm not getting the domains to look up on the command line or from the user. They are coming in over a socket from, say, dig. So I'm trying to avoid parsing those queries myself since the full DNS query protocol is hefty; that is, I want twisted to do the work of the parsing the input. Thanks for your help. -Broder

2 2

[Twisted-Python] multiple log files
by Ted Pederson 27 Jan '09

27 Jan '09

I am new to twisted. If I understand it correctly, the framework doesn't support multiple log files. I can still use python's logging, but will there be problems with blocking?

2 1

[Twisted-Python] How to write (network) integration tests with Twisted?
by Alessio Pace 27 Jan '09

27 Jan '09

Hi, I would like to put in my suite of tests some integration tests which deal with running some exchange of messages among 2 endpoints (bound locally on the same machine on 2 different ports). I noticed (and read afterwards..) that I can't run()/stop() the reactor multiple times, so I was wondering what's the suggested way to deal with this kind of situation. Sorry if perhaps it is documented somewhere on the Twisted doc but apart from the mention to "Trial" (which I'm not sure responds to my needs) I haven't found much. Thanks in advance. Regards, Alessio Pace.

4 5