Mailman 3 November 2001 - 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] PB for Java status report
by Itamar Shtull-Trauring 06 Jan '02

06 Jan '02

It's now possible to create Referenceables in Java - meanwhile simple remote_xxx style ones only, no support for Perspectives or Viewables yet. In other words, you can now create PB services in Java as well - I think it's pluggable enough that you could integrate this with any Java server architecture that uses streams (which is probably all of them :).

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[Twisted-Python] FAQ-o-matic
by Michael Dartt 03 Dec '01

03 Dec '01

I'd like to suggest the addition of a FAQ-o-matic (http://faqomatic.sourceforge.net/fom-serve/cache/427.html)to the Twisted site. I think it would make it much easier to get and to post info, as you wouldn't have to wait for someone to write The Definitive Documentation(tm) for a given subject. From what I've seen/experienced, the "document-as-you-go" approach works much better for open-source projects. I'm willing to do the work of getting the F-o-m set up. (Perhaps I should stick in in my personal space?)

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[Twisted-Python] Twisted 0.12.2
by Chris Armstrong 30 Nov '01

30 Nov '01

Hey all. I released Twisted 0.12.2 today, it was mainly a bunch of bug fixes with a few features. Here's the changes: What's new in 0.12.2? Removed some broken and/or experimental code. Added poll() based event loop implementation. New minimal documentation for WebWidgets and Manhole in the doc/ directory. Made some changes to the listen API -- changed from listenOn to listenTCP, listenUDP, and listenSSL. Some UI changes for InstanceMessenger. Some caching support for static files in twisted.web. Tons of fixed bugs. Go grab it at http://twistedmatrix.com/downloads/. Have fun. -- <Yosomono> rasterman is the millionth monkey -- Chris Armstrong <<< radix(a)twistedmatrix.com >>> http://twistedmatrix.com/users/carmstro.twistd/

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[Twisted-Python] Re: [Twisted-commits] CVS: Twisted/twisted/internet poll.py,NONE,1.1
by Itamar Shtull-Trauring 29 Nov '01

29 Nov '01

Itamar Shtull-Trauring wrote: > Update of /cvs/Twisted/twisted/internet > In directory zaibach:/tmp/cvs-serv28575 > > Added Files: > poll.py > Log Message: > preliminary poll()-based event loop > What I learned - the addReader/addWriter/etc. API is far too select() oriented. Every other alternative (poll, kqeue, windows event thing) works by registering and unregistering objects - correct me if I'm wrong. So instead of having to emulate a select()-like API, we need a select() wrapper that acts like poll(). In other words, addReader and friends must go when we refactor the event loop code.

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[Twisted-Python] Intro and "Slash- or Squishdot-style stuff?"
by Michael Dartt 28 Nov '01

28 Nov '01

Hello, everyone. <introduction>I did some work with God--er, Glyph--on Twisted Reality back in the days when it was in Java. I've done a decent chunk of coding, including using Python (which is still my favorite language), but I admit to being almost a complete newbie when it comes to network programming. Other than that...I live in Madison, WI and work at EDS on the WI Medicaid account.</introduction> I'm considering using Twisted for a news/portal site in a similar style to Slashdot. Glyph told me that there's been some discussion about creating a Twisted package along these lines. I couldn't find anything in the archives; has anyone started work on such a thing? Also, does the server run reliably under Windows 9x? Thanks, Mike

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[Twisted-Python] cursors
by Kevin Turner 24 Nov '01

24 Nov '01

Someone, either Glyph or Tommi, mentioned that they wanted cursors a while back. "What's that," I asked; then thought "hm. I could do that." But I didn't. Only, now I did. I think. -- The moon is waxing gibbous, 58.9% illuminated, 8.2 days old. # -*- Python -*- # Kevin Turner <acapnotic(a)foobox.net>, November 23, 2001 # This code is in the Public Domain. from UserList import UserList import types class CursoredList(UserList): _cursorlist = None def __init__(self, seq=None): UserList.__init__(self, seq) def setCursor(self): if self._cursorlist is None: self._cursorlist = [] self._cursorlist[:] = range(len(self.data)) self._cursorLen = len(self.data) def cursor(self, key): if self._cursorlist is None: return self.__getitem__(key) if isinstance(key, types.SliceType): start, stop, step = key.start, key.stop, key.step if not step: step = 1 if start is None: start = 0 elif start < 0: start = self._cursorLen + start if (stop is None) or (stop > self._cursorLen): stop = self._cursorLen elif stop < 0: start = self._cursorLen + stop result = [] for i in xrange(start, stop, step): result.append(self.cursor(i)) return result else: key = int(key) if key < 0: key = self._cursorLen + key assert(0 <= key < self._cursorLen) new_key = self._cursorlist.index(key) return self.__getitem__(new_key) def __setitem__(self, key, value): if (self._cursorlist is not None) \ and isinstance(key, types.SliceType): self._cursorlist[key.start:key.stop] = [None] * len(value) if isinstance(key, types.SliceType): self.data[key.start:key.stop] = value else: self.data[key] = value def __getitem__(self, key): if isinstance(key, types.SliceType): return self.data[key.start:key.stop] else: return self.data[key] def __delitem__(self, key): if not isinstance(key, types.SliceType): key = slice(key, key+1) self.__setitem__(key, []) def __getslice__(self, start, stop): return self.__getitem__(slice(start, stop)) def __setslice__(self, start, stop, value): return self.__setitem__(slice(start, stop), value) def __delslice__(self, start, stop): return self.__delitem__(slice(start, stop)) def __iadd__(self, other): self.extend(other) return self def __imul__(self, multiplier): if self._cursorlist is not None: self._cursorlist.extend(([None] * len(self.data)) * (multiplier-1)) self.data[:] = self.data * multiplier def append(self, item): self[len(self):len(self)] = [item] def insert(self, i, item): self[i:i] = [item] def pop(self, i=-1): value = self[i] del self[i] return value def remove(self, item): i = self.index(item) del self[i] def reverse(self): self.data.reverse() if self._cursorlist is not None: self._cursorlist.reverse() def sort(self, cmpfunc=None): if self._cursorlist is not None: zipped = map(None, self.data, self._cursorlist) if cmpfunc: # The supplied cmpfunc won't be expecting the zipped list. cmpfunc_ = lambda x, y, c=cmpfunc: c(x[0], y[0]) zipped.sort(cmpfunc_) else: zipped.sort() for i in range(len(zipped)): self.data[i], self._cursorlist[i] = zipped[i] else: self.data.sort() def extend(self, other): self[len(self):len(self)] = other

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[Twisted-Python] WebWidgets and Deferreds.
by Chris Armstrong 24 Nov '01

24 Nov '01

Ok, riddle me this, glyph (or anyone else who knows about this). Why do we need Deferreds to be a special-case in WebWidgets? Why can't _all_ widgets be displayed only right when they're needed? RenderSession could just take a Widget, and display() it (and the widgets that display() returns) in order.. Is there some sort of performance issue here, maybe? Maybe I'll try implementing this, and send a patch to be looked at. -- <TomG> I'm in the wrong channel. -- Chris Armstrong <<< radix(a)twistedmatrix.com >>> http://twistedmatrix.com/users/carmstro.twistd/

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[Twisted-Python] Re: [Twisted-commits] CVS: Twisted/twisted/protocols irc.py,1.24,1.25
by Glyph Lefkowitz 23 Nov '01

23 Nov '01

On Wed, Nov 21, 2001 at 11:48:54PM -0600, Kevin Turner wrote: > protocols/irc.py: An exception in the server isn't a reason to drop the > client, right? IMHO, it is. If the protocol isn't specifically designed to deal with exceptions (For example, dynamic web content or PB protocol exceptions) then it's undefined behavior and the connection should be dropped. Bot behavior should be implemented in a layer above the IRC protocol, if there is a place for a catch-all exception handler. I won't revert this change because I'm not living in that part of the code right now, but Kevin, I suggest you consider it. -- ______ you are in a maze of twisted little applications, all | |_\ remarkably consistent. | | -- glyph lefkowitz, glyph @ twisted matrix . com |_____| http://www.twistedmatrix.com/

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[Twisted-Python] Sites, protocols etc.
by Magnus Heino 21 Nov '01

21 Nov '01

Hi. I've got a basic app using widgets up'n'running. Still, it would be nice with an example of how it is meant to be used. Surely someone must have anything? Doesn't even have to work... I just want to know that I'm doing things The Right Way. Next question: Can I serve both xmlrpc and http from the same application/site? I guess I can, but I havent figured out how... Thanks, /Magnus

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