Mailman 3 June 2006 - Twisted

[Twisted-Python] Bullets for the twisted proselytizer gun?
by Eric Faurot 09 Jun '06

09 Jun '06

Hi all, I will probably have a chance to be in charge of a (commercial) project that consists in developping a platform for handling distributed content, with XML-flavored chips and webby services. I am also confident that my voice will be heard concerning the technical aspects of the project. My wish is of course to use twisted for that. But I will have to convince people with the tie and the money, who tragically are also the ones who are most sensible to buzzwords. The LAMP case will be rather easy to deal with. I'll show no mercy. My concern is that the dreadful J2EE acronym has already been uttered. I have programmed a bit in java already, and I never liked it. I find it cumbersome and boring. Although I can certainly do that if I am forced to, I want to avoid it at (nearly) all cost. But I don't have enough experience to plead effectively against it. I doubt that intuition and aesthetic inclinations are really convincing arguments. So, I'd like to ask twisted enthiusiasts with better knowledge and experience of J2EE than I have, if they could provide meaningful points for advocating python/twisted over J2EE, pro and cons for each. My main argument so far is that I am *way* more fluent in python, so I am more likely to come up with a prototype quickly. Also, the flexibility of python makes early refactoring much easier, and it is always possible to reimplement things in another language once the architecture stabilizes. I also think python is more portable than java, but that would sound a bit anecdotal. Thanks for your input. Eric.

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[Twisted-Python] Re: recommended twisted database coding
by Ed Suominen 08 Jun '06

08 Jun '06

From: Thomas Vander Stichele <thomas(a)apestaart.org> > Are there any active projects that use a database backend, twisted, > persistent objects, and are freely available, that I can sneak a peek at > for my further education ? Take a look at my sAsync ("SQLAlchemy made Asynchronous") project at http://foss.eepatents.com/sAsync/. I think it does a lot of what you're looking for. I've got the lower-level foundation code unit tested and working fine, and am currently working on higher-level stuff like an asynchronously-accessible persistent "name:value" item store and a persistent dictionary that uses it. The object you'll most want to get familiar with if you use sAsync is "AccessBroker" in the "database" module [1]. The synchronous-to-asynchronous interface problem, which must be dealt with by any Twisted-compatible DB-API that doesn't do the low-level network file or connections entirely on its own, is addressed in what I like to think is a pretty cool fashion via a priority queue that runs in a single, dedicated worker thread. See the "syncbridge" module for details [2]. By popular demand (well, one user to be exact), I've included a mildly informative "Usage" document at the site that may help explain how and why to use sAsync. Best regards, Ed Suominen -------------------------------------------- [1] http://foss.eepatents.com/sAsync/browser/trunk/sasync/database.py [2] http://foss.eepatents.com/sAsync/browser/trunk/sasync/syncbridge.py

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[Twisted-Python] Do Twisted support LMTP servers?
by Jesus Cea 06 Jun '06

06 Jun '06

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Twisted is very extensive in protocol support, managing smtp, pop3 and imap4, for example. I was wondering if there is any LMTP server project out there. It should be fairly simple, since LMTP is very very similar to usual SMTP. I need to use LMTP for a local project, and I was wondering if tiwsted could be used to fill this gap. - -- Jesus Cea Avion _/_/ _/_/_/ _/_/_/ jcea(a)argo.es http://www.argo.es/~jcea/ _/_/ _/_/ _/_/ _/_/ _/_/ jabber / xmpp:jcea@jabber.org _/_/ _/_/ _/_/_/_/_/ _/_/ _/_/ _/_/ _/_/ _/_/ "Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/ "My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/ "El amor es poner tu felicidad en la felicidad de otro" - Leibniz -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iQCVAwUBRDb7+plgi5GaxT1NAQK4rQP9EDdkMc0b83teXKB/XM22fV2gq3z/uEj1 RBjeHGSPOs5ogg1+/E4eiq8vq83mNTBDzxVJriN20UbrHgOcC+kBjfnCB8MCPnER 1tEorRnb19Siy+xnu0+rJ3XtNLJXJubMiXxm/5ig27Hl+UChnQLCthiqL1h0P22/ yi9LCprkRZ4= =fG6b -----END PGP SIGNATURE-----

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[Twisted-Python] Newbie Q: The first example in Fettig's book confused me
by Mike Meng 05 Jun '06

05 Jun '06

Hi all, I'm a new Python programmer and just picked up Abe Fettig's "Twisted" book. I tried out the first example, which use reactor.run() to drive printTime and stopReactor callback functions to print time, and found some strange things. I wrote the code in a .py file and run it, it's fine. However, when I tried to write the code in interactive mode and run it from IDLE shell window, all the four printTime were called at once. Why? Thank you in advance. The session is listed here: >>> from twisted.internet import reactor >>> import time >>> def printTime(): print "Current time is ", time.strftime("%H:%M:%S") >>> def stopReactor(): printTime() print "Stopping reactor" reactor.stop() >>> reactor.callLater(1, printTime) <twisted.internet.base.DelayedCall instance at 0x00D9E288> >>> reactor.callLater(2, printTime) <twisted.internet.base.DelayedCall instance at 0x00E42210> >>> reactor.callLater(3, printTime) <twisted.internet.base.DelayedCall instance at 0x00DF8BC0> >>> reactor.callLater(4, printTime) <twisted.internet.base.DelayedCall instance at 0x00C74760> >>> reactor.callLater(5, stopReactor) <twisted.internet.base.DelayedCall instance at 0x0132E738> >>> reactor.run() Current time is 09:06:52 Current time is 09:06:52 Current time is 09:06:52 Current time is 09:06:52 Current time is 09:06:52 Stopping reactor

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[Twisted-Python] ftpclient question
by Michele Petrazzo 05 Jun '06

05 Jun '06

Hi list, I'm making some tries with the ftpclient.py example and I don't know how to handle the "login error" state (and other errors): if I use a correct name/passwd, the .pwd/.nlst functions work, but if I use a wrong one, I receive "only": """ [Failure instance: Traceback (failure with no frames): twisted.protocols.ftp.ConnectionLost: ('FTP connection lost', <twisted.python.failure.Failure twisted.protocols.ftp.CommandFailed>) ] """ that not mean "wrong username or password"! Where I can find more useful error-descriptions? P.s. There is a "global" solution for the "error-descriptions" on FTPClient class? I'm making a lot of tries with .list function (with a not exits path) and others, but all say me a "unreadable" errors. Thanks, Michele

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[Twisted-Python] Earn a University Degree based on your professional experience.
by Hubert Rodriquez 05 Jun '06

05 Jun '06

University Degree OBTAIN A PROSPEROUS FUTURE, MONEY-EARNING POWER, AND THE PRESTIGE THAT COMES WITH HAVING THE CAREER POSITION YOUVE ALWAYS DREAMED OF. DIPLOMA FROM PRESTIGIOUS NON-ACCREDITED UNVERSITIES BASED ON YOUR PRESENT KNOWLEDGE AND PROFESSIONAL EXPERIENCE. If you qualify, no required tests, classes, books or examinations. Confidentiality Assured 1-520-844-1041 24 hours a day, 7 days a week including Sundays and Holidays Call us and leave message offer ending soon..

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[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com 04 Jun '06

04 Jun '06

Bug summary ______________________ Summary for 2006-05-28 through 2006-06-04 Bugs opened: 29 Bugs closed: 28 Total open bugs: 622 (+1) |== Type Changes |== Priority Changes |== Component Changes |Defect: -2 |Highest: +0 |Conch: -3 |Enhancement: +10 |High: +1 |Core: +7 |Normal: +3 |Release Management: -1 |Low: +4 |Runner: +1 |Lowest: +0 |Trial: +2 |Web: +1 |Web2: +2 |Website: -1 New / Reopened Bugs ______________________ ===== Highest ===== [#1761] give wiki edit permissions to everyone who should have them (opened by glyph) enhancement core http://twistedmatrix.com/trac/ticket/1761 [#1770] Reactor for Qt4 using PyQt4 (opened by grudy) enhancement core http://twistedmatrix.com/trac/ticket/1770 [#1783] add dreid to LICENSE and CREDITS (opened by PenguinOfDoom) (CLOSED, fixed) enhancement core http://twistedmatrix.com/trac/ticket/1783 ===== High ===== [#1773] twisted.python.filepath.FilePath.islink will never return True (opened by exarkun) (CLOSED, fixed) defect core http://twistedmatrix.com/trac/ticket/1773 [#1775] Attach URI to a resource during lookup (opened by wsanchez) enhancement web2 http://twistedmatrix.com/trac/ticket/1775 [#1778] Need a way to locate another resource on the site (opened by wsanchez) enhancement web2 http://twistedmatrix.com/trac/ticket/1778 [#1779] Use URLPath everywhere we deal with URLs (opened by wsanchez) (CLOSED, duplicate) enhancement web2 http://twistedmatrix.com/trac/ticket/1779 [#1780] self.transport.pauseProducing() in connectionMade is ignored for clients (opened by itamarst) enhancement core http://twistedmatrix.com/trac/ticket/1780 ===== Normal ===== [#1757] Clean up test Clock and move it to a public location (opened by exarkun) (CLOSED, fixed) enhancement core http://twistedmatrix.com/trac/ticket/1757 [#1758] url address of our website has changed (opened by lstep) (CLOSED, fixed) enhancement website http://twistedmatrix.com/trac/ticket/1758 [#1760] Rewrite iocpreactor to be a small add-on to selectreactor (opened by PenguinOfDoom) enhancement core http://twistedmatrix.com/trac/ticket/1760 [#1762] iocpreactor 'Connector' object has no attribute 'sub' (opened by ghazel) (CLOSED, invalid) defect core http://twistedmatrix.com/trac/ticket/1762 [#1763] ProcessMonitor.active is actually Service.running (opened by soyt) enhancement runner http://twistedmatrix.com/trac/ticket/1763 [#1765] twisted.web.static's file listing should decode filenames properly (opened by radix) enhancement web http://twistedmatrix.com/trac/ticket/1765 [#1768] Synchronous Task Queue (opened by edsuom) enhancement core http://twistedmatrix.com/trac/ticket/1768 [#1769] setup.py --help still references 'all' command. (opened by dreid) (CLOSED, invalid) enhancement release management http://twistedmatrix.com/trac/ticket/1769 [#1771] Per-method preconditions (opened by wsanchez) (CLOSED, fixed) enhancement web2 http://twistedmatrix.com/trac/ticket/1771 [#1772] doc/web2/examples/auth/credsetup.py missing import (opened by dreid) (CLOSED, fixed) defect web2 http://twistedmatrix.com/trac/ticket/1772 [#1776] 2518bis (opened by wsanchez) enhancement web2 http://twistedmatrix.com/trac/ticket/1776 [#1777] DAV methods are all bound to DAVFile, need to promote generic code to DAVResource (opened by wsanchez) enhancement web2 http://twistedmatrix.com/trac/ticket/1777 [#1781] Remove TestCase._wait from Trial (opened by jml) enhancement trial http://twistedmatrix.com/trac/ticket/1781 [#1782] web2's WSGIHandler incorrectly advertises twisted as a multiprocess environment (opened by pjenvey) defect web2 http://twistedmatrix.com/trac/ticket/1782 [#1785] reactor.run should raise an error when called while the reactor is running (opened by jml) defect core http://twistedmatrix.com/trac/ticket/1785 ===== Low ===== [#1759] eliminate "portable" gtk2 reactor on win32 platforms, use real gtk2 reactor (opened by glyph) enhancement core http://twistedmatrix.com/trac/ticket/1759 [#1764] No-op timer service in _twistw.py is (probably) unnecessary (opened by soyt) enhancement core http://twistedmatrix.com/trac/ticket/1764 [#1766] distutils' bdist_rpm fails due to package naming (opened by gopher) (CLOSED, duplicate) enhancement web http://twistedmatrix.com/trac/ticket/1766 [#1774] HTTP Proxies inproperly handled both for client and server code in Twisted.Web (opened by ironfroggy) defect web http://twistedmatrix.com/trac/ticket/1774 [#1784] disttrial --hosts=kunai,takkun,muon twisted (opened by exarkun) enhancement trial http://twistedmatrix.com/trac/ticket/1784 ===== Lowest ===== [#1767] distutils' bdist_rpm fails (assuming it is not supported and requesting this as a feature) (opened by gopher) (CLOSED, duplicate) enhancement core http://twistedmatrix.com/trac/ticket/1767 Closed Bugs ______________________ ===== Highest ===== [#1399] log.msg('why I failed'); log.err(failureObj); idiom is really stupid, should be replaced (opened by glyph, closed by glyph, fixed) enhancement conch http://twistedmatrix.com/trac/ticket/1399 [#1658] conch plugin stomps manhole plugin (opened by mfeif, closed by glyph, fixed) defect conch http://twistedmatrix.com/trac/ticket/1658 [#1454] test failures during chained methods are not reported well (opened by warner, closed by jml, ) defect trial http://twistedmatrix.com/trac/ticket/1454 [#1454] test failures during chained methods are not reported well (opened by warner, closed by jml, ) defect trial http://twistedmatrix.com/trac/ticket/1454 [#1454] test failures during chained methods are not reported well (opened by warner, closed by jml, ) defect trial http://twistedmatrix.com/trac/ticket/1454 [#1783] add dreid to LICENSE and CREDITS (opened by PenguinOfDoom, closed by PenguinOfDoom, fixed) enhancement core http://twistedmatrix.com/trac/ticket/1783 ===== High ===== [#610 ] Use gobject functions when possible in gtk2reactor (opened by jdahlin, closed by glyph, fixed) defect conch http://twistedmatrix.com/trac/ticket/610 [#1779] Use URLPath everywhere we deal with URLs (opened by wsanchez, closed by dreid, duplicate) enhancement web2 http://twistedmatrix.com/trac/ticket/1779 [#1773] twisted.python.filepath.FilePath.islink will never return True (opened by exarkun, closed by glyph, fixed) defect core http://twistedmatrix.com/trac/ticket/1773 [#945 ] websetroot: Completely fails fresh install of Twisted 2.0.0 and Twisted Web 0.5.0 (opened by levi, closed by radix, fixed) defect web http://twistedmatrix.com/trac/ticket/945 ===== Normal ===== [#494 ] Extract maintainers from docstrings to separate page (opened by hypatia, closed by tekNico, fixed) enhancement website http://twistedmatrix.com/trac/ticket/494 [#1758] url address of our website has changed (opened by lstep, closed by glyph, fixed) enhancement website http://twistedmatrix.com/trac/ticket/1758 [#1762] iocpreactor 'Connector' object has no attribute 'sub' (opened by ghazel, closed by ghazel, invalid) defect core http://twistedmatrix.com/trac/ticket/1762 [#1769] setup.py --help still references 'all' command. (opened by dreid, closed by exarkun, invalid) enhancement release management http://twistedmatrix.com/trac/ticket/1769 [#1520] README-sumo is missing a date (opened by TimothyFitz, closed by radix, wontfix) defect release management http://twistedmatrix.com/trac/ticket/1520 [#1678] State of many Twisted subprojects is unclear (opened by synapsis, closed by radix, fixed) enhancement core http://twistedmatrix.com/trac/ticket/1678 [#1771] Per-method preconditions (opened by wsanchez, closed by wsanchez, fixed) enhancement web2 http://twistedmatrix.com/trac/ticket/1771 [#1772] doc/web2/examples/auth/credsetup.py missing import (opened by dreid, closed by dreid, fixed) defect web2 http://twistedmatrix.com/trac/ticket/1772 [#1700] t.w2.vhost.AutoVHostURIRewrite fails silently if no X-Forwarded-Host header is provided. (opened by dreid, closed by dreid, fixed) enhancement web2 http://twistedmatrix.com/trac/ticket/1700 [#1699] t.w2.vhost.AutoVHostURIRewrite doesn't pass remote_ip information (opened by dreid, closed by dreid, fixed) enhancement web2 http://twistedmatrix.com/trac/ticket/1699 [#1723] twisted.web2.http_headers.parseWWWAuthenticate doesn't work without a challenge. (opened by dreid, closed by dreid, fixed) defect web2 http://twistedmatrix.com/trac/ticket/1723 [#1757] Clean up test Clock and move it to a public location (opened by exarkun, closed by exarkun, fixed) enhancement core http://twistedmatrix.com/trac/ticket/1757 [#1757] Clean up test Clock and move it to a public location (opened by exarkun, closed by exarkun, fixed) enhancement core http://twistedmatrix.com/trac/ticket/1757 ===== Low ===== [#1766] distutils' bdist_rpm fails due to package naming (opened by gopher, closed by glyph, duplicate) enhancement web http://twistedmatrix.com/trac/ticket/1766 [#1610] assertions in pyunit test cases don't show tracebacks (opened by radix, closed by jml, ) defect trial http://twistedmatrix.com/trac/ticket/1610 [#1610] assertions in pyunit test cases don't show tracebacks (opened by radix, closed by jml, ) defect trial http://twistedmatrix.com/trac/ticket/1610 [#1610] assertions in pyunit test cases don't show tracebacks (opened by radix, closed by jml, ) defect trial http://twistedmatrix.com/trac/ticket/1610 ===== Lowest ===== [#1767] distutils' bdist_rpm fails (assuming it is not supported and requesting this as a feature) (opened by gopher, closed by glyph, duplicate) enhancement core http://twistedmatrix.com/trac/ticket/1767

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[Twisted-Python] Earn a University Degree based on your professional experience.
by Alexis Gibson 03 Jun '06

03 Jun '06

University Degree OBTAIN A PROSPEROUS FUTURE, MONEY-EARNING POWER, AND THE PRESTIGE THAT COMES WITH HAVING THE CAREER POSITION YOUVE ALWAYS DREAMED OF. DIPLOMA FROM PRESTIGIOUS NON-ACCREDITED UNVERSITIES BASED ON YOUR PRESENT KNOWLEDGE AND PROFESSIONAL EXPERIENCE. If you qualify, no required tests, classes, books or examinations. Confidentiality Assured 1-520-844-1041 24 hours a day, 7 days a week including Sundays and Holidays

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[Twisted-Python] DOctOr recOmmendatiOns
by Greta 02 Jun '06

02 Jun '06

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[Twisted-Python] f0und aff0rdable medicati0n prices
by Wayne 02 Jun '06

02 Jun '06

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