Mailman 3 December 2009 - Twisted

[Twisted-Python] Twisted Python 0.7.0 Prerelease Testing
by Glyph Lefkowitz 05 Aug '21

05 Aug '21

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. ______ __ __ _____ _ _ | ____ | \_/ |_____] |_____| |_____| |_____ | | | | @ t w i s t e d m a t r i x . c o m http://www.twistedmatrix.com/~glyph/

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01 May '19

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[Twisted-Python] regarding xml elements
by Raj kumar 02 Oct '13

02 Oct '13

Hi, I have an xml file in my application, I have created an element using Example goes like this......... document.createElement("abc") and i appeneded it by using append() method. But how i can reflect this change to my xml file? and one more thing is i want to create element with some other parameters.... like............. <abc m=" " n=" "> </abc> and i have m and n values as strings with me. can anybody help me to create this element and write it to the existing xml file as a child of an existing element? Thanks in advance.. Raj.. Forgot the famous last words? Access your message archive online at http://in.messenger.yahoo.com/webmessengerpromo.php

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[Twisted-Python] Get IP of connecting client in XMLRPC server
by Remy C. Cool 28 Apr '13

28 Apr '13

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 xmlrpc_whatIsMyAddress(self): return self.transport.getPeer().host > > if __name__ == '__main__': > from twisted.internet import reactor > r = Example() > reactor.listenTCP(7080, server.Site(r)) > reactor.run() > > I want to be able to get the address of the client that calls the xmlrpc > method can anyone help me with this? This solution didn't work because 'transport' isn't a property of the Example class. I'm currently in the process of changing from a customized SimpleXMLRPCServer to a twisted XMLRPC server solution and I need to insert the client IP into the attributes passed to the called xmlrpc method. Anyone who knows the answer and is willing to share the info? Regards, Remy

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[Twisted-Python] http.Request and JSON
by Vincent Gulinao 25 Jan '12

25 Jan '12

How do you read JSON content from a POST using http.Request. I peeked on args and it's empty. TIA.

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[Twisted-Python] Some news about currently-pending code-reviews
by Tim Allen 05 Jan '10

05 Jan '10

First, a public service announcement about code-reviews: I'm not a Twisted Developer, I'm just a guy who submitted a patch and got talked into helping out by reviewing other people's Twisted patches while I was waiting for other people to review mine. You don't have to be a Twisted expert to help out, and don't worry about whether you're experienced enough to spot every possible problem - most patches get reviewed *at least* two or three times by different people, and every problem you pick up and the developer addresses is one less issue the next reviewer has to think about. As I've started reviewing over the past week or two, the developers whose code I've reviewed and the regulars in the #twisted IRC channel have all been super-helpful, and I highly recommend code-reviewing as a pleasant way to spend an idle afternoon. Everything you need to know to get started should be listed here: http://twistedmatrix.com/trac/wiki/ReviewProcess ---------------------------------------------------------------------- As I mentioned above, I've been doing Twisted code-reviews recently, and I've seen a few tickets in particular I thought the general Twisted community might like to know about, if not help out with. :) http://twistedmatrix.com/trac/ticket/3956 Add arraysize option to runQuery in adbapi - The "arraysize" property is the only writable cursor property defined by DBAPI2. Setting it can make the .fetchall() method faster with some DB modules, but Twisted's adbapi module offers no way to set it. - This ticket has a patch that adds an "cp_arraysize" keyword argument to ConnectionPool.runQuery() to set the .arraysize property, but this could interfere with DB modules that accept a "cp_arraysize" keyword parameter to cursor.execute(). - I looked up the API docs for as many Python DB modules as I could think of, and none of them attach any significance to a "cp_arraysize" keyword parameter. - However, at least cx_Oracle supports using keyword parameters for populating parameterised queries, like this: cursor.execute("select :name from dual;", name="Fred") So, my questions to the Twisted community are: - How many of you are using adbapi.ConnectionPool with cx_Oracle, or another DB module that supports arbitrary keyword arguments to cursor.execute? - Of those, how many of you are using parameterised queries or prepared statements with placeholders named "arraysize" or "cp_arraysize"? http://twistedmatrix.com/trac/ticket/4138 A fresh Twisted checkout should support "setup.py sdist" - Occasionally people ask about building RPMs of Twisted with "./setup.py bdist_rpm"; this ticket is the first step in getting that working - the rest of the process is #1696. - I'm not sure if it helps with other kinds of bdist, like "bdist_wininst" or "bdist_msi" - if it does, and you've been waiting for that, then you might want to help review the code and check it works properly on your platform! http://twistedmatrix.com/trac/ticket/4004 subunit reporter. FTW. - This ticket adds another test-reporter to Twisted Trial, one that outputs results in a format that can be parsed by the tools in the third-party "subunit" project, https://launchpad.net/subunit - Among other things, this would help integrate Python tests with test results from other systems (tap2subunit, subunit2junitxml), compare the results of different test-runs (subunit-diff), and enable cute GUI-based test-runners (subunit2gtk). - If subunit sounds like a tool you would find useful, you might want to help review the code!

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[Twisted-Python] how manual run LoopingCall.f
by ploutosss ploutosss 01 Jan '10

01 Jan '10

I use _threadedselect reactor. My waker its one line: eventmodule.post(eventmodule.Event(TWISTEDEVENT, iterateTwisted=func)) its send event, to pygame queue. My pygame loop: class PygameController(object): _tick = Tick() def _eventIterator(self): while True: if self._ticking: yield eventmodule.poll() else: yield eventmodule.wait() def run(self): for event in self._eventIterator(): if event.type == NOEVENT: self.manager.post(self._tick) continue elif event.type == TWISTEDEVENT: event.iterateTwisted() if not reactor.running: break continue ... When I need to quickly perform some function, I set the parameter PygameController._ticking to True, and my manager call some function. Its work. When I need to perform some function with a time interval of more than one second, I use LoopingCall. Its work. When I need to perform some function with a time interval of less than one second, LoopingCall too slow. I try use my ticking, but for function is not executed too often, I used the following code: def some_function(self): looping_instance = self.looping call = looping_instance.call if call and call.time - call.seconds() <= 0: looping_instance() but I get this traceback when I stop looping (LoopingCall.stop()): File "/usr/lib64/python2.6/site-packages/twisted/internet/base.py", line 779, in runUntilCurrent call.func(*call.args, **call.kw) File "/usr/lib64/python2.6/site-packages/twisted/internet/task.py", line 196, in __call__ d.addErrback(eb) File "/usr/lib64/python2.6/site-packages/twisted/internet/defer.py", line 199, in addErrback errbackKeywords=kw) File "/usr/lib64/python2.6/site-packages/twisted/internet/defer.py", line 181, in addCallbacks self._runCallbacks() --- <exception caught here> --- File "/usr/lib64/python2.6/site-packages/twisted/internet/defer.py", line 323, in _runCallbacks self.result = callback(self.result, *args, **kw) File "/usr/lib64/python2.6/site-packages/twisted/internet/task.py", line 191, in eb d.errback(failure) exceptions.AttributeError: 'NoneType' object has no attribute 'errback'

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[Twisted-Python] Lore to Sphinx Conversion Progress Report 3
by Kevin Horn 01 Jan '10

01 Jan '10

Hello again, and welcome to another update on the Twisted Lore to Sphinx conversion project. Current Sphinx results are in the usual place at: http://twistedsphinx.funsize.net/ Here's what's new: - The lore2sphinx conversion script is now up on bitbucket. You can find it here: http://bitbucket.org/khorn/lore2sphinx/ . Special thanks to Steve Steiner (ssteinerX) for helping out a bitbucket newbie. - lore2sphinx now reads input and output directories from a config file. The config file can have one or more "profiles", each of which contains config info for a set of documentation. At present, the script just uses the default profile (set in the config file), but I'll add a command line switch to specify the profile Real Soon Now (tm), which will make it easy to use a single config file for multiple projects (e.g. twisted, nevow, mantissa, etc.) - lore2sphinx has also been refactored a bit, which solves a lot of whitespace handling issues. The Sphinx build now gives fewer than 100 errors (currently 65, started off in the 500-600 range)! Hooray! Still, not all of the output is fully correct, and some tags (notably tables) are still unhandled. - I still haven't started any work on a theme...I'll get to it eventually, unless someone else does first. Any volunteers? - Divmod docs: new config file support is a step in this direction, look for something soon... - PyOpenSSL docs: kind of a sideline to this so I haven't really moved forward on this yet, but I will eventually If anyone out there would like to help out, I can certainly use the assistance. Lore2sphinx could probably use some extra eyeballs and brains looking at it, thought the basic structure is pretty much laid out. Any ideas/comments/criticisms welcome. If you're intimidated by the idea of working on the actual lore2sphinx conversion script (or just don't want to), here's some other stuff that needs doing: - work on a twisted (or Divmod) Sphinx theme which at least mostly matches the website (or the Divmod website) - identify branches which have lore patches in them - identify tickets which propose to fix/modify Lore functionality - identify wiki pages that need to be changed, and the necessary changes - make suggestions on the overall conversion process, as documented in the proposal. I'm sure I'll manage to get all this done eventually, but with more people, it will get done sooner. And sooner is better. :) If you'd like to help out with one (or more) of these tasks, just give a shout here, or email me off-list. Thanks! Kevin Horn

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[Twisted-Python] adbapi transaction initiation
by Landreville 31 Dec '09

31 Dec '09

I've just noticed the transaction_timestamp is actually way (up to several minutes) before the database proc gets called. I'm on postgresql 8.4 so the transaction_timestamp is when the transaction started, and I compared it against the clock_timestamp (absolute current time) and it is quite a bit off. Does adbapi start transactions before any method (ie runQuery) is called? Or should I be looking at the underlying database driver to this behaviour?

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[Twisted-Python] twisted mail client code review
by César García 31 Dec '09

31 Dec '09

Hello guys, this are my first steps into twister and this is my first app with twister, using examples from the twisted documentation and reading it a lot ( interfaces are still not for me ), I've come to this code: http://pastebin.com/m2d6c35df My goal for now is to create my own client and be able to retrieve mail :) well it's done, but my question to the experts is to know your opinions about my code, to see if I can implement any best practice in order to have a decent app, in fact to hear from you how do you find the code PD: Sorry for my English, saludos desde Costa Rica. Thanks a lot ! -- http://celord.blogspot.com/

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