Mailman 3 October 2002 - Twisted

[Twisted-Python] Freshmeat
by Andrew Bennetts Oct. 24, 2002

Oct. 24, 2002

I note that the Twisted project info at Freshmeat is up-to-date with respect to version numbers: http://freshmeat.net/projects/twisted/?topic_id=22%2C28%2C86%2C92%2C250 But it probably should have this bit updated: "Development Status :: 4 - Beta" -Andrew.

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[Twisted-Python] UDP Support
by Itamar Shtull-Trauring Oct. 24, 2002

Oct. 24, 2002

I intend to totally refactor UDP tonight. Do I need to bother with backwards compatability, or is nobody using it? There's been a big "this is not a stable API" docstring on it for a while... -- Itamar Shtull-Trauring http://itamarst.org/ Available for Python, Twisted, Zope and Java consulting

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Re: [Twisted-Python] Fw: [Tutor] Interfacing to the web
by andy surany Oct. 24, 2002

Oct. 24, 2002

Thanks. It looks like the basic building blocks are there - but I don't know enough about how a proxy works to be able to make one (if I can avoid it). All I really need to do is to be able to hook into the date stream, tagging on one specific URL which I can then parse to get the data into my python program. Unfortunately, I can't access the URL directly (cookies, etc.). Or have i misunderstood twisted.web.proxy? The only docs I found were at http://twistedmatrix.com/users/jh/teud/Twisted/twisted.web.proxy.html Andy -----Original Message----- From: Itamar Shtull-Trauring <twisted(a)itamarst.org> To: twisted-python(a)twistedmatrix.com <twisted-python(a)twistedmatrix.com> Cc: mongo57a(a)comcast.net <mongo57a(a)comcast.net> Date: Wednesday, October 23, 2002 9:29 PM Subject: Re: [Twisted-Python] Fw: [Tutor] Interfacing to the web >On Wed, 23 Oct 2002 21:08:24 -0400 >andy surany <mongo57a(a)comcast.net> wrote: > >> It was suggested in Tutor that Twisted might be what I'm looking for >> (please see the thread below). The best bet appears to be a proxy to >> which I can add some intercept logic. Anybody done this with Twisted? > >You could make a transparent proxy with Twisted, yes, since it has both >http client and server classes. There's a module twisted.web.proxy that >does that. > >Might not work without some munging of the returned HTML, however. > >-- >Itamar Shtull-Trauring http://itamarst.org/ >Available for Python, Twisted, Zope and Java consulting > >_______________________________________________ >Twisted-Python mailing list >Twisted-Python(a)twistedmatrix.com >http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python

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[Twisted-Python] Fw: [Tutor] Interfacing to the web
by andy surany Oct. 24, 2002

Oct. 24, 2002

Hi all! It was suggested in Tutor that Twisted might be what I'm looking for (please see the thread below). The best bet appears to be a proxy to which I can add some intercept logic. Anybody done this with Twisted? TIA -Andy -----Original Message----- From: andy surany <mongo57a(a)comcast.net> To: Magnus Lycka <magnus(a)thinkware.se>; tutor(a)python.org <tutor(a)python.org> Date: Wednesday, October 23, 2002 5:44 PM Subject: Re: [Tutor] Interfacing to the web From the responses I have received, it sounds like a proxy is the best bet. However, my application is meant to run on Linux, Windows, and Mac platforms, so that may rule out some software (it looks like squid is for linux only????, and privoxy does not allow code extensions). So I will search for a good proxy. Anyone write a good one????? Or know of one?(given the above caveats...). TIA -Andy -----Original Message----- From: Magnus Lycka <magnus(a)thinkware.se> To: andy surany <mongo57a(a)comcast.net>; tutor(a)python.org <tutor(a)python.org> Date: Wednesday, October 23, 2002 5:20 PM Subject: Re: [Tutor] Interfacing to the web At 13:03 2002-10-23 -0400, andy surany wrote: >Hi All! > >Here is what I need to accomplish: > > From a python program, I need to launch a browser. The user then uses > the browser to interact with the web site. However, the python program > must continually monitor the data from the web site to capture specific > data elements. > > Unfortunately, I can't point the program to the specific URL as there > is a significant and secure (cookies, etc.) exchange that must occur in > order to reach the page. I see two reasonable ways to go about this. One is to use a web proxy that acts as a man-in-the-middle. I'm not aware of any python proxies though, but maybe it's possible tobuild plugins for some proxies? Something along the line of privoxy (www.privoxy.org) or squid (www.squid-cache.org) might be useful??? See http://www.squid-cache.org/related-software.html Another option could be to build a custom web browser. If you use wxPython, there is a HTML window component that could be useful. If you are in MS Windows, you could also plug into Internet Explorer or at least use parts of it. See the wxPython demo. -- Magnus Lyckå, Thinkware AB Älvans väg 99, SE-907 50 UMEÅ tel: 070-582 80 65, fax: 070-612 80 65 http://www.thinkware.se/ mailto:magnus@thinkware.se _______________________________________________ Tutor maillist - Tutor(a)python.org http://mail.python.org/mailman/listinfo/tutor

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[Twisted-Python] dbcred and Firebird Incompatibility
by Joshua Ritter Oct. 23, 2002

Oct. 23, 2002

First the stuff that makes sense: --- Firebird doesn't like batched SQL statements in a single string any better than MySQL does... Also it doesn't like the Primary Key in dbcred's schema not being specified as NOT NULL In twisted_identities: identity_name varchar(64) NOT NULL PRIMARY KEY In twisted_services: service_name varchar(64) NOT NULL PRIMARY KEY --- Now for something weird... Firebird chokes in CREATE TABLE twisted_identities on the password column... by changing the name to identity_password it works?!?!?!?!? -J

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Re: [Twisted-Python] dbcred and Firebird Incompatibility
by Joshua Ritter Oct. 23, 2002

Oct. 23, 2002

"password" and "user" are Firebird/Interbase keyword/variables... neither will work as a column name... for instance, you also can't have a column named "file", "default","starting", "length", etc etc etc. This is pretty enough for me: identity_name identity_password I wonder what other landmines await... -J ---------------------------------------------------- >> Firebird chokes in CREATE TABLE twisted_identities on the password column... >> by changing the name to identity_password it works?!?!?!?!? >It's almost certainly wrong, but the first thing that occurs to me is: > twistedidentities > identitypassword > ^ ^ ^ ^ ^ > 4 8 12 16 18 >twisted_identities has more than 16 alphanumeric characters in it, whereas >identity_password has exactly 16. Is this a hard limit in firebird, by chance? >;-) >-- > | <`'> | Glyph Lefkowitz: Travelling Sorcerer | > | < _/ > | Lead Developer, the Twisted project | > | < ___/ > | http://www.twistedmatrix.com |

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[Twisted-Python] Error using mktap for ResourceTemplates
by kkennedy＠kenzoid.com Oct. 23, 2002

Oct. 23, 2002

I'm getting an error with both the 1.0.0-1 Debian package (congrats on 1.0, BTW!...and many, many thanks for the up-to-date debs.) and current CVS when I try to use the mktap --processor flag suggested in doc/howto/resource-templates.html mktap web --processor=.rtl=twisted.web.script.ResourceTemplate 'NoneType' object has no attribute 'processors' Usage: mktap web [options]...etc. I'll look into it myself in the morning, but I wanted to see if anyone else had noticed this. Quixote/Twisted interaction possibilities look excellent to me! -- Ken Kennedy | http://www.kenzoid.com | kenzoid(a)io.com

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[Twisted-Python] Documentation: Footnotes [Yay]
by Moshe Zadka Oct. 23, 2002

Oct. 23, 2002

So, we now have footnote support, and I fixed all documents[1][2] to take advantage of it. Hopefully, this will make the next version of the book even better than ever before. Indexes are still not supported, but should be even easier to add. [1] Except pb-cred.html and pb-tour.html, which use footnotes for unfootnotish stuff, and thus should be revamped by their author. [2] See! I told you we have footnote support

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Re: [Twisted-Python] Creating an SSH client programatically with Twisted?
by Max Schubert Oct. 23, 2002

Oct. 23, 2002

Hi, Thank you for the information and help. Paul Swartz sent me an SSH client he has written and mentioned that he might be doing some more client examples and documentation for the conch module at some point. Max On Tue, 22 Oct 2002 17:38:27 +0200, Christopher Armstrong wrote: > On Sun, Oct 20, 2002 at 07:02:34AM +1857, Max Schubert wrote: > > I have looked at the documentation, the twisted.conch.ssh.* classes, > > and the test_conch.py script and am still having a hard time figuring > > out how to construct an SSH client using Twisted. > > > > Does anyone have pointers to examples or documentation that will help > > me do this? > > Check out the writing clients document at > http://twistedmatrix.com/documents/howto/clients. Conch is only a > server, and the implementation is pretty new, so there's not any > documents on what you're trying to do in particular. You'll have to > resort to really diving into the code. > > If you have any specific questions, feel free to ask. > > > _______________________________________________ > Twisted-Python mailing list > Twisted-Python(a)twistedmatrix.com > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python

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[Twisted-Python] dbcred and MySQL Incompatibility
by Joshua Ritter Oct. 23, 2002

Oct. 23, 2002

MySQL requires that a single SQL statement be sent to query ... transactional or not... http://www.mysql.com/doc/en/mysql_query.html dbcred is incompatible with MySQL due to it's batching of ; delimited SQL statements. There is also such functionality in enterprise.row.StatementBatch createSchema() ; createIdentity() ; and removeIdentity() fail under MySQL currently... once the SQL statements are seperated; I have verified them working. -J

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