Mailman 3 November 2002 - Twisted

[Twisted-Python] (no subject)
by Hamish Lawson Nov. 15, 2002

Nov. 15, 2002

Jeff Epler wrote: >Bob Ippolito wrote: > > > I have a stupid device that's talking to a Twisted web server that > > demands HTTP headers to be capitalized Like-This, however Twisted only > > capitalizes the first character.. >[...] > > Any chance someone could patch that up? > >Doubtful. > >http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2 > "Field names are case-insensitive" Nevertheless the headers are almost always presented in … [View More]

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Re: [Twisted-Python] WebDAV support
by Christopher Armstrong Nov. 14, 2002

Nov. 14, 2002

Hey Daniel, the link to MoulDAVia on your website is broken. How's it coming along? I'd like to check it out. -- Christopher Armstrong << radix(a)twistedmatrix.com >> http://twistedmatrix.com/users/radix.twistd/

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[Twisted-Python] web.static patch waiting for commit (before 1.0.1)
by Paul Boehm Nov. 14, 2002

Nov. 14, 2002

the patch i submitted for pre-1.0 because to fix query_string's for index.rpy's (see list archive), hasn't been commited nor rejected so far. testcase is: http://www.twistedmatrix.com/, repeatedly adding ?bla=foo strings and wondering about the redirect that discards the query_string. anyone care to look at this?: diff -u -r1.74 static.py --- static.py 12 Nov 2002 13:00:06 -0000 1.74 +++ static.py 13 Nov 2002 19:31:41 -0000 @@ -267,10 +267,12 @@ # If someone is looking … [View More]

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[Twisted-Python] missing woven patch
by Paul Boehm Nov. 13, 2002

Nov. 13, 2002

donovan, the patch you mailed me while twistedmatrix.com was lagging still hasn't made it's way into cvs. please apply: diff -u -r1.36 view.py --- view.py 31 Oct 2002 03:29:08 -0000 1.36 +++ view.py 13 Nov 2002 16:29:45 -0000 @@ -296,6 +296,11 @@ model = self.getTopOfModelStack() if not view or not isinstance(view, widgets.Widget): view = widgets.DefaultWidget(model) + + view.modelStack = self.modelStack[:] + … [View More]

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[Twisted-Python] pickle apparently doesn't go with curry ...
by Steve Waterbury Nov. 13, 2002

Nov. 13, 2002

Twisted Gurus: I'm using the "curry" recipe from the Python Cookbook (pretty much verbatim), and it appears to work fine in my code, but cPickle isn't happy about it: Traceback (most recent call last): File "/usr/local/bin/mktap", line 31, in ? run() File "/usr/local/lib/python2.2/site-packages/twisted/scripts/mktap.py", line 180, in run a.save() File "/usr/local/lib/python2.2/site-packages/twisted/internet/app.py", line 508, in save dumpFunc(self, f) File "/usr/local/… [View More]

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[Twisted-Python] xmlrpc
by lals;dfjsd Nov. 13, 2002

Nov. 13, 2002

I am trying the examples in www.xmlrpc.com with twisted matrix but I have hit a wall I hope that somebody can give me a hand. I am trying to call the method from my xml ... My xml code : <?xml version="1.0"?> <methodCall> <methodName>examples.tryone.Echoer.echo_something</methodName> <params> <param> <value>Name</value> </param> </params> </methodCall> My xmlrpc server code : #!c:\… [View More]

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[Twisted-Python] xmlrpc
by lals;dfjsd Nov. 13, 2002

Nov. 13, 2002

I am trying the examples in www.xmlrpc.com with twisted matrix but I have hit a wall I hope that somebody can give me a hand. I am trying to call the method from my xml ... My xml code : <?xml version="1.0"?> <methodCall> <methodName>examples.tryone.Echoer.echo_something</methodName> <params> <param> <value>Name</value> </param> </params> </methodCall> My xmlrpc server code : #!c:\… [View More]

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[Twisted-Python] Fixes for tapconvert
by Samuel Bronson Nov. 11, 2002

Nov. 11, 2002

This cleans up --typein=guess, and fixes problems with a couple of the Loader classes which I noticed while testing my other changes. --SamB Index: twisted/scripts/tapconvert.py =================================================================== RCS file: /cvs/Twisted/twisted/scripts/tapconvert.py,v retrieving revision 1.5 diff -u -r1.5 tapconvert.py --- twisted/scripts/tapconvert.py 11 Sep 2002 18:59:59 -0000 1.5 +++ twisted/scripts/tapconvert.py 11 Nov 2002 22:02:26 -0000 @@ -57,9 +57,9 @@ … [View More] self.read() return self.decode() - def read(self, filename): - pass - + def read(self): + self.data = open(self.filename, 'r').read() + def decrypt(self): try: import md5 @@ -73,8 +73,6 @@ class LoaderXML(LoaderCommon): loadmessage = '<Loading file="%s" />' - def read(self, filename): - self.data = open(filename, 'r').read() def decode(self): from twisted.persisted.marmalade import unjellyFromXML sys.modules['__main__'] = EverythingEphemeral() @@ -84,24 +82,22 @@ return application class LoaderPython(LoaderCommon): + def read(self): + pass def decrypt(self): log.msg("Python files are never encrypted") - def decode(self): pyfile = os.path.abspath(self.filename) d = {'__file__': self.filename} - execfile(pyfile, dict, dict) + execfile(pyfile, d, d) try: - application = dict['application'] + application = d['application'] except KeyError: log.msg("Error - python file %s must set a variable named 'application', an instance of twisted.internet.app.Application. No such variable was found!" % repr(self.filename)) sys.exit() return application class LoaderSource(LoaderCommon): - def read(self): - self.data = open(self.filename, 'r').read() - def decode(self): from twisted.persisted.aot import unjellyFromSource sys.modules['__main__'] = EverythingEphemeral() @@ -112,9 +108,6 @@ return application class LoaderTap(LoaderCommon): - def read(self): - self.data = open(self.filename, 'rb').read() - def decode(self): sys.modules['__main__'] = EverythingEphemeral() application = load(StringIO(self.data)) @@ -170,22 +163,25 @@ passphrase = getpass.getpass('Passphrase: ') if options["typein"] == "guess": - if options["in"][-3:] == '.py': - options["typein"] = 'python' - else: - try: - options["typein"] = ({ '.tap': 'pickle', - '.tas': 'source', - '.tax': 'xml' }[options["in"][-4:]]) - except KeyError: - print "Error: Could not guess the type." - return + ext = os.path.splitext(options["in"])[1] + try: + options["typein"] = ({ '.py': 'python', + '.tap': 'pickle', + '.tas': 'source', + '.tax': 'xml' }[ext]) + except KeyError: + print "Error: Could not guess the type." + return if None in [options['in']]: options.opt_help() a = loadPersisted(options["in"], options["typein"], options["decrypt"], passphrase) - a.persistStyle = ({'xml': 'xml', - 'source': 'aot', - 'pickle': 'pickle'} - [options["typeout"]]) + try: + a.persistStyle = ({'xml': 'xml', + 'source': 'aot', + 'pickle': 'pickle'} + [options["typeout"]]) + except KeyError: + print "Error: Unsupported output type." + return savePersisted(a, filename=options["out"], encrypted=options["encrypt"]) [View Less]

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[Twisted-Python] Lore with PIL
by Cory Dodt Nov. 11, 2002

Nov. 11, 2002

I'm in the process of adapting Lore for the documentation on my project. I've subclassed it, and attached my work. I decided not to do this as a patch after all; the changes should be very easy to drop into the lore core if this turns out to be useful. What do this script and module do? * Convert lore-html to latex (like html2latex and latex.py) What does it do differently (see Advantages for the reasons why)? 1) Images are converted to png instead of eps before for use in the \… [View More]includegraphics command. (Images that start as png are unchanged.) 2) Images are automatically formatted to 6.5in wide, maintaining aspect ratio. What are the advantages? 1) Works anywhere PIL is available / eliminates dependency on pngtopnm 2) Because PIL supports so many formats, the subclass now supports a boatload of image formats instead of just png. 3) Resulting image quality is better, although it can still improve more. 4) Images don't flow outside the margins Notes on Image Quality: I achieved the best quality by converting my .dia's to .eps and including .eps directly. Since these are vector graphics, the quality is perfect, to the resolution of the pdf itself; but when I did it this way, the fonts in the diagrams were mapped to different fonts that overflowed their boxes and made the diagram unreadable. Next best was to convert dia=>eps=>png (using ImageMagick's convert utility in the shell) then including the png. This could improve if I could figure out how to make includegraphics use a sensible DPI when it does its conversion to dvi. Worst was dia=>eps=>png=>eps, for reasons that are not obvious to me. Both png and eps are non-lossy, so the last two conversion paths should have equal quality, but they don't. What isn't right yet? 1) visitNode_img() always uses png as the target extension, and 2) convert_any() assumes this. convert_any() will fail for certain target image formats because the mode ("""im.convert('RGB')...""") has to match the target format. This can be fixed with a simple exception handler (TODO). 3) Images should be formatted to a width of (pagewidth-leftmargin-rightmagin), instead of a hardcoded 6.5in (which assumes, among other things, letter-sized paper). I'm not latex guru enough to make this work yet. Other notes: It looks like the .eps in Twisted doc isn't being generated from dia during process-docs. This is very easy to do in batch, even without an X server; ask me if anyone wants to see my mklore script. #------------ #pilhtml2latex.py #----snip---- """A replacement for html2latex which imports pillatex if it exists.""" # # Copyright (C) 2002 Fresno County Office of Education # # Adapted from html2latex, which is in Twisted (http://twistedmatrix.com). # # This library is free software; you can redistribute it and/or # modify it under the terms of version 2.1 of the GNU Lesser General Public # License as published by the Free Software Foundation. import os from twisted.lore import texi, docbook import pillatex from twisted.python import usage class Options(usage.Options): optFlags = [['section', 's', 'Generate a section, not an article'], ['texi', 'i', 'Generate a Texinfo section'], ['docbook', 'c', 'Generate a Docbook section']] optParameters = [['dir', 'd', None, 'Directory relative to which references' ' will be taken']] def parseArgs(self, *files): self['files'] = files def run(): opt = Options() opt.parseOptions() ext = ".tex" if opt['section']: klass = pillatex.SectionLatexSpitter elif opt['texi']: klass = texi.TexiSpitter ext = '.texinfo' elif opt['docbook']: klass = docbook.DocbookSpitter ext = '.xml' else: klass = pillatex.LatexSpitter for file in opt['files']: fout = open(os.path.splitext(file)[0]+ext, 'w') dir = opt['dir'] or os.path.dirname(file) spitter = klass(fout.write, dir, os.path.basename(file)) pillatex.processFile(spitter, open(file)) if __name__ == '__main__': run() #----snip---- pillatex.py #----snip---- """A substitute for twisted.lore.latex, using PIL to convert instead of pngtopnm.""" # # Copyright (C) 2002 Fresno County Office of Education # # This library is free software; you can redistribute it and/or # modify it under the terms of version 2.1 of the GNU Lesser General Public # License as published by the Free Software Foundation. from twisted.lore import latex from twisted.lore.latex import processFile import os.path from PIL import Image class ImageConverter: def convert_any(self, src, target): im=Image.open(src) im.convert('RGB').save(target) convert_eps=convert_jpg=convert_jpeg=convert_bmp=convert_dib= \ convert_ppm=convert_gif=convert_tif=convert_tiff= \ convert_xpm=convert_xbm=convert_psd=convert_any def convert_png(self, src, target): pass def visitNode_img(self, node): fileName = os.path.join(self.currDir, node.getAttribute('src')) target, ext = os.path.splitext(fileName) m = getattr(self, 'convert_'+ext[1:], None) if not m: return target = os.path.join(self.currDir, os.path.basename(target)+'.png') m(fileName, target) target = os.path.basename(target) self.writer('\\includegraphics[width=6.5in]{%s}\n' % target) class LatexSpitter(ImageConverter, latex.LatexSpitter): pass class SectionLatexSpitter(ImageConverter, latex.SectionLatexSpitter): pass __________________________________________________ Do you Yahoo!? U2 on LAUNCH - Exclusive greatest hits videos http://launch.yahoo.com/u2 [View Less]

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[Twisted-Python] Erasing strings from memory?
by Paul Swartz Nov. 10, 2002

Nov. 10, 2002

I'm working on a SSH client/server for Twisted, and some of the things the client needs to work with are passwords both for login and for private keys, and then the decrypted keys. Obviously, storing these in memory leads to the possibility of acessing them and thereby compromising the user. Is there a way to overwrite the data, or otherwise erase it from memory? -p -- Paul Swartz (o_ http://twistedmatrix.com/users/z3p.twistd/ //\ z3p(a)twistedmatrix.com V_/_ AIM: Z3Penguin

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[Twisted-Python] ANN: CVSToys 1.0.0
by Kevin Turner Nov. 10, 2002

Nov. 10, 2002

How do I stay informed about changes to the repository? How can I keep a checked-out working copy up to date? How can I keep a back-up of my repository off site? . . . Twisted Matrix Laboratories has been using CVSToys to keep track of their CVS repository for the past year, and now CVSToys is being released to the general public for the first time. FreshCVS ("the biggest best and only toy we've got"), working in conjunction with CVS's 'loginfo' hook, will perform actions in response to a … [View More]

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[Twisted-Python] Re: [Twisted-commits] Support --version
by Christopher Armstrong Nov. 10, 2002

Nov. 10, 2002

On Sun, Nov 10, 2002 at 04:45:39AM -0600, moshez CVS wrote: > Modified files: > Twisted/twisted/python/usage.py 1.35 1.36 > > Log message: > Support --version This makes no sense. The Twisted version has nothing to do with the version of usage.Options-using applications. -- Christopher Armstrong << radix(a)twistedmatrix.com >> http://twistedmatrix.com/users/radix.twistd/

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[Twisted-Python] An unexpected interaction
by Jp Calderone Nov. 9, 2002

Nov. 9, 2002

I've just discovered some unfortunate behavior when dirdbm and rebuild are combined (as I have recently combined them in Pynfo). It is easily duplicated: from twisted.persisted import dirdbm from twisted.python import rebuild s = dirdbm.Shelf('dirdbm.rebuild.test') s['key'] = 'value' rebuild.rebuild(dirdbm) print s['key'] Investigating with pdb, I discovered: > /home/exarkun/projects/python/Twisted/twisted/persisted/dirdbm.py(90)_readFile() -> f = _open(path, "rb") (… [View More]

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[Twisted-Python] Another patch for twisted-im
by screwtape＠froup.com Nov. 8, 2002

Nov. 8, 2002

This one's dead simple, and shouldn't cause any discussion. :) -- ___________ ____________________________ | Screwtape | Reply-To: munged on Usenet |________ ______ ____ __ _ _ _ | | I don't usually .sig people in newsgroups. -- Charles Lieberman |

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[Twisted-Python] distutils and twisted
by Alexandre Fayolle Nov. 8, 2002

Nov. 8, 2002

Hi, What's the prefered way to use distutils to package a twisted plugin. The key question being, how do you install the plugins.tml file ? Is there any distutils extensions available ? -- Alexandre

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[Twisted-Python] twisted, nc and LineReceiver
by Alexandre Fayolle Nov. 7, 2002

Nov. 7, 2002

Hello, it's me again ;o) So there's this server I'm porting from a ForkingTCPServer to twisted. It listens on a socket, and reads one line at a time, processes the line and writes the answer back on the socket to the client. The ForkingTCPServer version uses a handler deriving from StreamRequestHandler, and gets the data with self.rfile.readline(). The twisted version uses a LineReceiver protocol. Now, if I use telnet to connect to both version of the server, I can type some data, press … [View More]

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[Twisted-Python] grokking cacheable, take 2
by carball＠hush.com Nov. 7, 2002

Nov. 7, 2002

ok, the insecurejelly error i was getting i found was actually due to trying to store the observer(s) in the Cacheable object itself. . evidently jelly doesnt take too kindly to having these objects in there when it serializes the Cacheable. . i was able to get around this by storing the observer in the perspective that is passed as the first argument to getStateToCacheAndObserveFor the docs say storing the observer(s) in the Cacheable is the preferred method no? "It is recommended that … [View More]

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[Twisted-Python] newbie comments on documentation
by Alexandre Fayolle Nov. 6, 2002

Nov. 6, 2002

Hi there, I'm starting with twisted (debian package 0.99.2-4), and I'm currently trying to convert a SimpleTCPServer based project to twisted, and therefore reading the documentation and trying to wrap my head around the framework. Here's a few comments. I'm a good (python) programmer, but a complete twisted newbie, and I think I may not be the only one with the same problems/doubts/questions on the documentation. The file quoters.py uses twisted.python.components.Interface, though the … [View More]

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Re: [Twisted-Python] Question regarding widgets
by lals;dfjsd Nov. 6, 2002

Nov. 6, 2002

---------- Original Message ---------------------------------- From: Andrew Bennetts <andrew-twisted(a)puzzling.org> Reply-To: twisted-python(a)twistedmatrix.com Date: Wed, 6 Nov 2002 12:12:12 +1100 >On Wed, Nov 06, 2002 at 09:00:13AM +0800, lals;dfjsd wrote: >> > >> >IIRC. However, I don't understand what you're trying to do here. If you have >> >Twisted installed in your C:\python22\lib\site-packages (as with setup.py or >> >the .exe installer) … [View More]

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[Twisted-Python] How to implement progress/transfer speed/transfered bytes handlers?
by Michael Scharf Nov. 6, 2002

Nov. 6, 2002

Hi, I want to use twisted as nntp client. Is it possible to add somewhere into the streams something like a progress bar or something that reports the download speed or the total transferred bytes? I have not looked too deeply into twisted, but as I understand it it uses the Decorator pattern between the connection and the actual handler. All I would need is to add a little class somewhere in between each connection and the handler, so that I can decorate the Protocol.dataReceived events... … [View More]

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Re: [Twisted-Python] Question regarding widgets
by lals;dfjsd Nov. 5, 2002

Nov. 5, 2002

---------- Original Message ---------------------------------- From: Glyph Lefkowitz <glyph(a)twistedmatrix.com> Reply-To: twisted-python(a)twistedmatrix.com Date: Tue, 05 Nov 2002 03:41:19 -0600 (CST) >On Tue, 5 Nov 2002 15:54:46 +0800, "lals;dfjsd" <twisted_low(a)contact.com.my> wrote: > >> I am newbie with some background using zope. I am trying to use twisted in a >> web application that is going to be launched in my office. Problem now is >> that i … [View More]cannot get the example to work ( Example ) ..... > >Can you expound a little more on which example you're talking about? "the >example [...] (Example)" is not very specific in a framework as large as >Twisted. > >> Specs : > >> 1. os --> windows 98 >> 2. python --> python-2.2.2 > >It should work, though I would recommend upgrading to a more sane version of >Windows whenever you've got the chance :-) > >> This is my autoexec.bat : > >> @SET PYTHONPATH=C:\python22\lib\site-packages\twisted\ >> @SET PYTHONPATH=C:\web2\TWISTEDQUOTES\;C:\WEB2\MOHAN_KOTEH\ > >@echo %PYTHONPATH% > >will probably show you that your PYTHONPATH is >"C:\web2\TWISTEDQUOTES\;C:\WEB2\MOHAN_KOTEH"; if you want to add things to the >path rather than reset it entirely, you want it to look like: > > @SET PYTHONPATH=C:\python22\lib\site-packages\twisted\ > @SET PYTHONPATH=%PYTHONPATH%;C:\web2\TWISTEDQUOTES\;C:\WEB2\MOHAN_KOTEH\ > >IIRC. However, I don't understand what you're trying to do here. If you have >Twisted installed in your C:\python22\lib\site-packages (as with setup.py or >the .exe installer) then you shouldn't be adding anything to your PYTHONPATH to >get 'twisted' to import. Well following the example for woven, I thought that you needed to add to pythonpath where ever you are putting your code for your application, as in if I want to put my code in c:\web2\mohan_koteh\ then i should add this to the pythonpath to get it to work. Isn't it so ? I just kept on trying the woven examples but without success until i added the directory which i was working on to the pythonpath. Maybe I am doing something wrong here but can someone actually tell me how it is done ? > >> i can't seem to get the Example even to compile and looking through the docs >> doesn't seem to help much. One question can i use the --personal option on a >> windows machine ? > >No. Windows doesn't have the notion of unix sockets. Even if you could, there >wouldn't be much of a point: windows security (especially on 9x!) is even more >of a disaster than UNIX, so separating privileges between processes doesn't >help much of anything if you're running them on the same machine. > >Why do you think you want the --personal option? It's designed for multi-user >servers where you've got lots of different people running webservers and you >want them all to be accessible through port 80. > >> I get an error that says it cannot find the pwd module. Can someone please >> help me or at least point me somewhere where there are some docs ??? > >The pwd module is for determining your UNIX username and home directory (which, >surprise, you don't have ^_^). The --personal option is pretty much useless to >you. > >-- > | <`'> | Glyph Lefkowitz: Traveling Sorcerer | > | < _/ > | Lead Developer, the Twisted project | > | < ___/ > | http://www.twistedmatrix.com | > > _____________________________________________________________________ iRepublics.com - Free Web Hosting for Businesses 33MB webspace free, SMS messaging, 30 email accounts, your own domain name Sign up Now at http://www.iRepublics.com [View Less]

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Re: [Twisted-Python] question
by lals;dfjsd Nov. 5, 2002

Nov. 5, 2002

---------- Original Message ---------------------------------- From: Glyph Lefkowitz <glyph(a)twistedmatrix.com> Reply-To: twisted-python(a)twistedmatrix.com Date: Tue, 05 Nov 2002 03:20:40 -0600 (CST) >On Tue, 5 Nov 2002 16:54:43 +0800, "lals;dfjsd" <twisted_low(a)contact.com.my> wrote: > >> in the book to get the example for widget working it says that we have to do >> a twistd -g Example and that this Example should be placed in a >> ~/TwistedPlugins … [View More]

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[Twisted-Python] question
by lals;dfjsd Nov. 5, 2002

Nov. 5, 2002

in the book to get the example for widget working it says that we have to do a twistd -g Example and that this Example should be placed in a ~/TwistedPlugins directory. This is not clear at all on a windows based machine. Where the heck is this TwistedPlugins directory supposed to exist ? .... in c:\python22\scripts ??? Where ???? _____________________________________________________________________ iRepublics.com - Free Web Hosting for Businesses 33MB webspace free, SMS messaging, 30 email … [View More]

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[Twisted-Python] authwovenquotes.rpy
by Thomas Raschbacher Nov. 5, 2002

Nov. 5, 2002

Hi! some time ago i re-wrote wovenquotes.rpy to support auth too ... i promised radix to write docs and submit them(sorry but i had no time yet) so i just submit the file now suggestions,comments(,flames)? greetings, LordVan P.S.: i'll write the doc asap -- -----BEGIN GEEK CODE BLOCK----- GCS/CC/E/M/MU/S d- s: a--- C++++(++) UL++++ P+ L++++ E W+++ N+++ o-- K w-- O M-- V- PS+ PE-- Y++ PGP+++ t+++ 5+ X- R tv b++++ DI- D+ G++ e-->+++++ h-- !r z- ------END GEEK CODE BLOCK------ ----------… [View More]

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[Twisted-Python] patch for twisted.enterprise.row
by Thomas Raschbacher Nov. 5, 2002

Nov. 5, 2002

hi! Patch for twisted.enterprise.row to allow a whereClause specified as String too and to allow ORDER BY clause(will be checked if it's a valid column). while doing this i found out that in twisted.enterprise.row the variable(String) 'type' is used. 'type' is a built-in function of Python and i don't think the author wanted to overwrite it so i changed it to Type. all changes have been made on cvs version and are verified to work Any comments,suggestions, ... greetings LordVan -- -----… [View More]

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