Mailman 3 February 2003 - 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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[Twisted-Python] Lore vs. latex2html: Fight to the Finish
by Moshe Zadka 21 Apr '03

21 Apr '03

Dear Twisted developers, I have started converting Thinking Like a Computer Scientist in Python to Lore, to try and see what Lore is missing. It has been a most education experience. The two prime things Lore is currently missing for lossless conversion (of the specific chapter I tested) are: * EPS images support * Indexing support However, beyond that, I am interested to know which looks better: latex2html: http://www.ibiblio.org/obp/thinkCSpy/chap01.htm Lore: http://twistedmatrix.com/users/moshez/loreprop/ (The Lore is using the Twisted documentation stylesheet.) Any comments would be nice. Comments which come with a patch to the stylesheet will be doubly appreciated. Thanks in advance, Moshe Zadka -- Moshe Zadka -- http://moshez.org/ Buffy: I don't like you hanging out with someone that... short. Riley: Yeah, a lot of young people nowadays are experimenting with shortness.

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[Twisted-Python] How do I upload files using FTPClient?
by Daniel Burr 08 Apr '03

08 Apr '03

I am currently designing a code-deploying service, to be used in conjunction with a variety of source control tools. I'm looking to use Twisted in the implementation of the file-transfer mechanism, as Twisted's broad protocol support would make it easy for me to switch from say, FTP to HTTP, or to some custom protocol I roll myself. I've experimented with twisted.protocols.ftp.FTPClient, and the one thing I can't seem to grok is how to perform file uploads. I've read through the code, and it seems that the FTP server class supports RETR and STOR, using DTPFactory, while FTPClient only supports RETR, and implements it independently. Basically, I'm lost as to how to connect FTPClient to DTPFactory, such that I can send files from FTPClient. I just need some pointers on how to accomplish this; it seems like the code is there to do it, but I'm missing the necessary Twisted mindset in this case. Thanks for your help. L. Daniel Burr

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[Twisted-Python] wxPython and Twisted event loops
by Uwe C. Schroeder 03 Apr '03

03 Apr '03

Hi, for those interested, I just posted a recipe on the activestate.com python cookbook about how to get wxPython running with Twisted withoud having blocked menu's and modal dialogs. It's a simple and dirty hack, but it's working on linux and win (basically all systems using the default select reactor) enjoy UC -- Open Source Solutions 4U, LLC 2570 Fleetwood Drive Phone: +1 650 872 2425 San Bruno, CA 94066 Cell: +1 650 302 2405 United States Fax: +1 650 872 2417

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[Twisted-Python] win32guireactor
by Thomas Heller 02 Apr '03

02 Apr '03

Here's my win32guireactor code, which at least for me, works better than win32eventreactor in my application. I have some problems in my app when using win32eventreactor: If the app displays a message box, no callLater calls are done (because a win32 messagebox has it's own event loop, and doIteration() is not called during this time. There are also other things that the user can do which shows the same behaviour, dragging a scrollbar for example. The second problem is that win32eventreactor uses a lot a cpu time - nearly 100% even on my brandnew 2GHz P4. Looks much like polling behaviour instead of event driven. So I wrote my own reactor implementation, which passes all events (those I've covered so far, reactor.callLater and network events) through a win32 message loop. Deferred's are not yet passed through the loop, so there is still some polling to be done. Looking at the comments at the top of the win32eventreactor code, my win32guireactor module shouldn't have the problems mentioned there. I post this module here asking for peer review and critical comments. This module requires win32all and my ctypes module as well, see the source for details. Thanks, Thomas PS: I tried to run unittests with this and other reactors with the command line py22 bin\trial -p twisted.test.test_internet -r <reactor> -v here are the results: default reactor FAILED (failures=5, errors=18) win32eventreactor twisted.test.test_ftp:FTPClientAndServerTests.testLongFileListings hangs forver. win32guireactor twisted.test.test_ftp:FTPClientAndServerTests.testLongFileListings crashes with this traceback, and then also hangs forever. twisted.test.test_ftp FTPClientAndServerTests testBadLogin ... testLongFileListings ... Traceback (most recent call last): File "C:\sf\Twisted\twisted\internet\win32guireactor.py", line 85, in __wm_timerevent tple.func(*tple.args, **tple.kw) File "C:\sf\Twisted\twisted\test\test_ftp.py", line 124, in errback except self.failureException, e: AttributeError: FTPClientAndServerTests instance has no attribute 'failureException'

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Re: [Twisted-Python] PyCon Logistics
by Laura Creighton 25 Mar '03

25 Mar '03

Thank you very much for the hotel information. In return: sushi information! http://www.sushitaro.com/ Sushi Taro 1503 17th St., NW (P St.) Washington (202) 462-8999 It has been 2 years, but that was the best last time I was in D.C. Near Metro. Laura Creighton

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[Twisted-Python] GtkWindow
by Philippe Lafoucrière 02 Mar '03

02 Mar '03

hello I have a pb (the same as the thread "Gtk version" when I try to run manhole: " Traceback (most recent call last): File "/usr/bin/manhole", line 33, in ? from twisted.scripts import manhole File "/usr/lib/python2.2/site-packages/twisted/scripts/manhole.py", line 23, in ? from twisted.spread.ui import gtkutil File "/usr/lib/python2.2/site-packages/twisted/spread/ui/gtkutil.py", line 62, in ? class GetString(gtk.GtkWindow): AttributeError: 'module' object has no attribute 'GtkWindow' " And if I look at the official page of PyGtk (http://www.daa.com.au/~james/software/pygtk/index.html) I found this exemple : [...] window = gtk.Window(gtk.WINDOW_TOPLEVEL) # create a top level window [...] manhole pygtk seems to be outdated ! any idea ? thx

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[Twisted-Python] Re: Fixes for windows installer
by Cory Dodt 28 Feb '03

28 Feb '03

I like where this is going, and I certainly have no complaints about dumping shortcut.py, but could you please review a few things before I commit this: * Putting install-script into setup.cfg makes your change visible to everyone who's building a distribution of Twisted. As you pointed out yourself, you can't use install-script without distutils 1.0.3, and Twisted has to support pythons 2.1 and 2.2. Will this config parameter be ignored by setup.py when building a Twisted install on distutils <1.0.3 or will it cause an error? * You made this change to the test I use for isWinNT: - if platform.isWinNT(): - return os.path.join(os.getenv("SYSTEMROOT"), - "system32", "shell32.dll") + # If SYSTEMROOT is not found (on Win98), guess the name + # of the windows directory + isNT = 0 + try: + get_special_folder_path("CSIDL_COMMON_PROGRAMS") + isNT = 1 + except OSError: # probably Win98 + pass Is the implementation of platform.isWinNT() broken? If so, I'd rather you patched it there. If not, I'd rather keep using it. * Most important thing: test_postinstall doesn't work with this patch, because create_shortcut and get_special_folder_path appear to be magical builtins installed by distutils. I'll be happy to rewrite the test if you can point me to the right place to import this code when it's not available as a builtin. __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/

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[Twisted-Python] Serving files, again
by Mario Ruggier 28 Feb '03

28 Feb '03

Hi, i had hacked the rpy below, to serve files (those specified by the left over part of the url, and rooted on a hard-wired rootdir on the system) following the suggestions of this list, picking from the example bits, and salvaging whatever ideas I can from the docs. However the mental model i'd like to form is still very murky... After Clark's post from yesterday, I tried to redo this in the "proper" way, i.e. using putChild. However, the best i could get was "Request did not return a string", when trying putChild and getChild as the content of the render() method below (with isLeaf=0). Would anyone be able to clarify what the render() method should be such that the url http://host/docs/some/file.txt will return the file at system location of: /Path/To/Somewhere/some/file.txt ? Oh, and in general, how does one turn off directory browsing for a twisted.web server? Thanks, mario ############################ # docs.rpy from twisted.protocols import http from twisted.web import resource, error import os ### docsBase = '/Path/To/Somewhere' serveFileTypes = ['','.txt','.pdf','.gif'] ### class RestrictedResource(resource.Resource): def isLeaf(self): return 1 def render(self, request): # a few var used in blocks below subPath = '/'.join(request.postpath) fullPath = docsBase +'/'+ subPath rootPath = '/docs/'+subPath if not len(subPath): rootPath = '/docs'+subPath # otherwise get double slash (when postpath is zero length) dirlist = [] # build list or return file try: if not os.path.exists(fullPath): raise Exception # of type... elif os.path.isdir(fullPath): dirlist = processDirlist(os.listdir(fullPath)) elif os.path.isfile(fullPath): import mimetypes mimetype = mimetypes.guess_type(fullPath)[0] if not mimetype: mimetype = 'text/plain' # fallback request.setHeader("content-type", mimetype) try: f = open(fullPath) return f.read() finally: f.close() else: raise Exception # of type.. except: errpage = error.ErrorPage(http.NOT_FOUND,"Not Found",rootPath) return errpage.render(request) # response string s = '<ul>' for file in dirlist: s += '<li><a href="%s">%s</li>' % ( rootPath+'/'+file, file ) s += '</ul>' title = 'Directory listing for ' + rootPath return '''<html><head><title>%s</title></head><body><h1>%s</h1>%s</body></ html>''' % (title,title,s) ### resource = RestrictedResource() ### def processDirlist(dirlist): dl = [] for filename in dirlist: (name, suffix) = os.path.splitext(filename) if suffix in serveFileTypes: dl.append(filename) return dl ###

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[Twisted-Python] Patch for tap.ftp to add username and password options
by Amir Bakhtiar 28 Feb '03

28 Feb '03

This patch allows username and password pairs to be defined. e.g. mktap ftp -uamir -pfoo mktap ftp -uamir:glyph -pfoo:bar -A- --- ftp.py 2003-02-26 11:31:15.000000000 -0800 +++ ftp.new.py 2003-02-26 11:43:16.000000000 -0800 @@ -33,13 +33,33 @@ optParameters = [ ["port", "p", "2121", "set the port number"], ["root", "r", "/usr/local/ftp", "define the root of the ftp-site."], - ["useranonymous", "", "anonymous", "Name of the anonymous user."] + ["useranonymous", "", "anonymous", "Name of the anonymous user."], + ["username(s)", "u", "twisted","set the login username. colon separate for multiple."], + ["password(s)", "w", "twisted","set the password. colon separate for multiple."] ] optFlags = [["anonymous", "a","allow anonymous logins"], ["thirdparty", "3", "allow third-party connections"],diff -c ["otp", "","activate One-Time Passwords"]] longdesc = '' + + + def opt_username(self, username): + """Set the login username(s). + This can be a single username or a ':' separated + list of usernames. + """ + self.opts['username'] = username + opt_u = opt_username + + + def opt_password(self, password): + """Set the login username(s). + This can be a single password or a ':' separated + list of passwords. + """ + self.opts['password'] = password + opt_w = opt_password def addUser(factory, username, password): @@ -60,8 +80,15 @@ t.otp = config.opts['otp'] t.userdict = {} - # adding a default user - addUser(t, "twisted", "twisted") + if config.opts['username']: + # Adding specified users + unames = config.opts['username'].split(':') + pwords = config.opts['password'].split(':') + for u, p in zip(unames, pwords): + addUser(t, u, p) + else: + # Adding a default user + addUser(t, "twisted", "twisted") try: portno = int(config.opts['port'])

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