Mailman 3 September 2006 - Python-announce-list

ANN: Stackless Python for Python 2.5
by richard.m.tew＠gmail.com Sept. 21, 2006

Sept. 21, 2006

Stackless Python for Python 2.5 is now available. What is Stackless Python? ========================= Stackless Python is an enhanced version of the Python programming language. It allows programmers to reap the benefits of thread-based programming without the performance and complexity problems associated with conventional threads. The microthreads and channels that Stackless adds to Python are cheap and lightweight conveniences which can if used properly, allow clearer and more readable code and the ability to dispatch with messy and awkward boilerplate like callbacks or the new generator coroutines. Where can I get it? =================== The source code can be obtained from the SVN repository which can be found here: http://svn.python.org/projects/stackless/branches/release25-maint/ Precompiled Windows binaries can be found here: http://www.stackless.com/download How might I benefit from using Stackless Python? ================================================ The most useful example is the replacement socket module. This allows all socket operations to be used in parallel, no longer blocking the rest of your application, or requiring you to use threads or libraries like asyncore yourself. Monkeypatch this library in place of the one in the standard library and all modules which use the standard socket module gain the same benefit. http://www.stackless.com/wiki/Examples -->8--[ asynch_fetch.py: example code courtesy of Andrew Dalke ]--8<-- import sys import stacklesssocket import stackless sys.modules["socket"] = stacklesssocket import urllib import time def download(uri): t1 = time.time() f = urllib.urlopen(uri) s = f.read() t2 = time.time() print "Downloaded", uri, "in", "%.1f" % (t2-t1), "seconds" return t2-t1 print " === Serial === " t1 = time.time() download("http://www.stackless.com/wiki/Tasklets") download("http://www.stackless.com/wiki/Channels") t2 = time.time() print " --->", t2-t1 print " === Parallel === " t1 = time.time() stackless.tasklet(download)("http://www.stackless.com/wiki/Tasklets") stackless.tasklet(download)("http://www.stackless.com/wiki/Channels") stackless.run() t2 = time.time() print " --->", t2-t1 -->8--------------------------------------------------------------8<-- Here are a couple of runs to show that the *same* code works in both serial and parallel modes, and that parallel really is faster (hence I'm not bandwidth limited) % spython asynch_fetch.py === Serial === Downloaded http://www.stackless.com/wiki/Tasklets in 2.6 seconds Downloaded http://www.stackless.com/wiki/Channels in 2.7 seconds ---> 5.34717988968 === Parallel === Downloaded http://www.stackless.com/wiki/Channels in 4.0 seconds Downloaded http://www.stackless.com/wiki/Tasklets in 5.4 seconds ---> 5.43875193596 % spython asynch_fetch.py === Serial === Downloaded http://www.stackless.com/wiki/Tasklets in 2.6 seconds Downloaded http://www.stackless.com/wiki/Channels in 2.7 seconds ---> 5.32963705063 === Parallel === Downloaded http://www.stackless.com/wiki/Channels in 2.2 seconds Downloaded http://www.stackless.com/wiki/Tasklets in 2.7 seconds ---> 2.71087312698

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html 0.4.0 released
by Jürgen Urner Sept. 20, 2006

Sept. 20, 2006

Just released the 0.4.0 version of my html package. What is html? Bet you know. But this module lets you parse and construct html content without templating languages. Goal was to wrap tags in the simplest way python allows to. Sample code: f = ( HtmlFile() ( Doctype(), Html() ( Head(), Body()("Hello World!") ) ) ) f.save(''myFile.html") ...or for spaghetti code lovers: print HtmlFile()(Doctype(), Html()(Head(), Body()("Hello World!"))).save() Get the package from here: http://home.arcor.de/jurner/python/

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ANN: MoinMoin 1.5.5a (advanced wiki engine) released
by Alexander Schremmer Sept. 20, 2006

Sept. 20, 2006

_ _ /\/\ ___ (_)_ __ /\/\ ___ (_)_ __ / \ / _ \| | '_ \ / \ / _ \| | '_ \ __ / /\/\ \ (_) | | | | / /\/\ \ (_) | | | | | /| |_ \/ \/\___/|_|_| |_\/ \/\___/|_|_| |_| |.__) =============================================== MoinMoin 1.5.5a advanced wiki engine released =============================================== MoinMoin is an easy to use, full-featured and extensible wiki software package written in Python. It can fulfill a wide range of roles, such as a personal notes organizer deployed on a laptop or home web server, a company knowledge base deployed on an intranet, or an Internet server open to individuals sharing the same interests, goals or projects. A wiki is a collaborative hypertext environment with an emphasis on easy manipulation of information. MoinMoin 1.5.5a is a bug fix release and a recommended update. The 1.5 branch brings you several new features such as the GUI editor, which allows the users to edit pages in a WYSIWYG environment, and many bug fixes. The download page: http://moinmoin.wikiwikiweb.de/MoinMoinDownload In the release 1.5.5, there was a small bug related to saving pages. Please use 1.5.5a because of that. New features in 1.5.5a ====================== * Disabling surge protection is possible now * More efficient IO code on Posix platforms (increases speed) Major bug fixes in 1.5.5a ========================= * Various GUI editor related bugs * Workaround for the Python bug that generates =XX garbage in sent mails * Relative links in ReStructured Text documents are rendered correctly now again (thanks to Stefan Merten) * Worked around an issue that was related to a bug in Internet Explorer (opening attachments was not possible anymore) * Fixed XMLRPC support for FastCGI (thanks to Johannes Berg) For a more detailed list of changes, see the CHANGES file in the distribution or http://moinmoin.wikiwikiweb.de/MoinMoinRelease1.5/CHANGES Major new features in 1.5 ========================= * The WYSIWYG editor for wiki pages allows you to edit pages without touching the markup. Furthermore, the wiki page is not stored as HTML after editing but kept as wiki markup in order to simplify the editing process for users that cannot or do not want to use the new editor. * AutoAdmin security policy allows users to gain admin permissions on particular pages. * The new authentication system allows to add short methods that check the credentials of the user. This allowed us to add eGroupware single sign on support. * Separation of homepages into a separate wiki (in a farm) and having a single user database is supported. * A DeSpam action to allow mass-reverting of spam attacks. * PackageInstaller support for simplified installation of plugins, themes and page bundles. This enables you to decide in which languages help pages should be installed. Note that Python 2.3.0 or newer is required. MoinMoin History ================ MoinMoin has been around since year 2000. The codebase was initally started by Jrgen Hermann; it is currently being developed by a growing team. Being originally based on PikiPiki, it has evolved heavily since then (PikiPiki and MoinMoin 0.1 consisted of just one file!). Many large enterprises have been using MoinMoin as a key tool of their intranet, some even use it for their public web page. A large number of Open Source projects use MoinMoin for communication and documentation. Of course there are also many private installations. More Information ================ * Project site: http://moinmoin.wikiwikiweb.de/ * Feature list: http://moinmoin.wikiwikiweb.de/MoinMoinFeatures * Download: http://moinmoin.wikiwikiweb.de/MoinMoinDownload * DesktopEdition: http://moinmoin.wikiwikiweb.de/DesktopEdition * This software is available under the GNU General Public License v2. * Changes: http://moinmoin.wikiwikiweb.de/MoinMoinRelease1.5/CHANGES * Known bugs: * http://moinmoin.wikiwikiweb.de/KnownIssues * http://moinmoin.wikiwikiweb.de/MoinMoinBugs sent by Alexander Schremmer for the MoinMoin team

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ANN: Python-2.5 available at WebFaction
by remi＠cherrypy.org Sept. 20, 2006

Sept. 20, 2006

Hello everyone, I'm happy to announce that WebFaction have now installed Python-2.5 on all their servers. WebFaction (formerly Python-Hosting.com) support all the major Python web frameworks (Django, TurboGears, CherryPy, mod_python, Pylons, web.py, ...) People using Python CGI or Python-2.5-compatible application servers will be able to use all the new features of Python-2.5 for their website. Remi http://www.webfaction.com - Hosting for an agile web

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ANN: eGenix mxODBC Zope Database Adapter 1.0.10 for Intel Mac OS X
by eGenix Team: M.-A. Lemburg Sept. 20, 2006

Sept. 20, 2006

________________________________________________________________________ ANNOUNCEMENT EGENIX.COM mxODBC Zope Database Adapter Version 1.0.10 Usable with Zope and the Plone CMS. Available for Zope 2.3 through 2.10 on Windows, Linux, Mac OS X, Solaris and FreeBSD ________________________________________________________________________ INTRODUCTION The eGenix mxODBC Zope Database Adapter allows you to easily connect your Zope or Plone installation to just about any database backend on the market today, giving you the reliability of the commercially supported eGenix product mxODBC and the flexibility of the ODBC standard as middle-tier architecture. The mxODBC Zope Database Adapter is highly portable, just like Zope itself and provides a high performance interface to all your ODBC data sources, using a single well-supported interface on Windows, Linux, Mac OS X, Solaris and FreeBSD. This makes it ideal for deployment in ZEO Clusters and Zope hosting environments where stability and high performance are a top priority, establishing an excellent basis and scalable solution for your CMS. ________________________________________________________________________ NEWS Our mxODBC Zope DA product is now available and supported on both Intel and PPC Mac OS X versions. ________________________________________________________________________ UPGRADING If you have already bought mxODBC Zope DA 1.0.x licenses, you can use these license for the 1.0.10 version as well. There is no need to buy new licenses. The same is true for evaluation license users. ________________________________________________________________________ MORE INFORMATION For more information on the mxODBC Zope Database Adapter, licensing and download instructions, please visit our web-site: http://zope.egenix.com/ You can buy mxODBC Zope DA licenses online from the eGenix.com shop at: http://shop.egenix.com/ Enjoy, -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Sep 20 2006) >>> Python/Zope Consulting and Support ... http://www.egenix.com/ >>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ ::: Try mxODBC.Zope.DA for Windows,Linux,Solaris,FreeBSD for free ! ::::

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Re: ANN: Amara XML Toolkit 1.1.9
by Uche Ogbuji Sept. 19, 2006

Sept. 19, 2006

Apologies for the cross-post. I need to post a brief correction to the lists for the original announcement. Uche Ogbuji wrote: > http://uche.ogbuji.net/tech/4suite/amara > http://cheeseshop.python.org/pypi/Amara/ > ftp://ftp.4suite.org/pub/Amara/ ... The original Windows installer EXEs posted for Amara 1.1.9 were corrupted. Jeremy Kloth and Luis Miguel Morillas collaborated on a quick fix, and working EXEs are now posted at ftp://ftp.4suite.org/pub/Amara/. If you try and have any further problems please post tot he 4Suite mailing list. -- Uche Ogbuji Fourthought, Inc. http://uche.ogbuji.net http://fourthought.com http://copia.ogbuji.net http://4Suite.org Articles: http://uche.ogbuji.net/tech/publications/

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Pydev 1.2.3 released
by Fabio Zadrozny Sept. 19, 2006

Sept. 19, 2006

Hi All, Pydev and Pydev Extensions 1.2.3 have been released Details on Pydev Extensions: http://www.fabioz.com/pydev Details on Pydev: http://pydev.sf.net Details on its development: http://pydev.blogspot.com Release Highlights in Pydev Extensions: ----------------------------------------------------------------- * Support for python 2.5 has been added * Some minor issues on mark occurrences when the definition for something could not be found were fixed Release Highlights in Pydev: ---------------------------------------------- * When the user specifies an invalid interpreter, a better error report is given (previously it was only shown in the error log) * When threads die, the debugger is notified about it (so that they are removed from the stack) * Writing the preferences to the disk is now buffered * Fixed problem when debugging in jython with the statement "from xxx import *" * Fixed one issue with the indentation engine * Commenting a line does not remove a blank line in the end anymore * Added debug mode for unit-test * Added the possibility of setting the -Dpython.cachedir for running the jython shell (errors can arise in unix-based machines if jython is not able to write its cache) Contributions o Darrell Maples: + Unit-test refactoring + Run as jython unit-test + Filter test methods to run o Joel Hedlund + Added a support to ease adding options to Ctrl+1 in the scripting engine + Added a ctrl+1 for the case: def m1(self, arg=None): arg |<-- Ctrl+1 shows option to do: def m1(self, arg=None): if arg is None: arg = [] Support for python 2.5 o Added the new relative import o Added the new if expression o Added the unified try..except..finally statement o Added the with x:... statement o Indenting after the new with statement o Recognizing 'with' as a keyword in syntax highlighting What is PyDev? --------------------------- PyDev is a plugin that enables users to use Eclipse for Python and Jython development -- making Eclipse a first class Python IDE -- It comes with many goodies such as code completion, syntax highlighting, syntax analysis, refactor, debug and many others. Cheers, -- Fabio Zadrozny ------------------------------------------------------ Software Developer ESSS - Engineering Simulation and Scientific Software http://www.esss.com.br Pydev Extensions http://www.fabioz.com/pydev Pydev - Python Development Enviroment for Eclipse http://pydev.sf.net http://pydev.blogspot.com

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RELEASED Python 2.5 (FINAL)
by Anthony Baxter Sept. 19, 2006

Sept. 19, 2006

It's been nearly 20 months since the last major release of Python (2.4), and 5 months since the first alpha release of this cycle, so I'm absolutely thrilled to be able to say: On behalf of the Python development team and the Python community, I'm happy to announce the FINAL release of Python 2.5. This is a *production* release of Python 2.5. Yes, that's right, it's finally here. Python 2.5 is probably the most significant new release of Python since 2.2, way back in the dark ages of 2001. There's been a wide variety of changes and additions, both user-visible and underneath the hood. In addition, we've switched to SVN for development and now use Buildbot to do continuous testing of the Python codebase. Much more information (as well as source distributions and Windows and Universal Mac OSX installers) are available from the 2.5 website: http://www.python.org/2.5/ The new features in Python 2.5 are described in Andrew Kuchling's What's New In Python 2.5. It's available from the 2.5 web page. Amongst the new features of Python 2.5 are conditional expressions, the with statement, the merge of try/except and try/finally into try/except/finally, enhancements to generators to produce coroutine functionality, and a brand new AST-based compiler implementation underneath the hood. There's a variety of smaller new features as well. New to the standard library are hashlib, ElementTree, sqlite3, wsgiref, uuid and ctypes. As well, a new higher-performance profiling module (cProfile) was added. Extra-special thanks on behalf of the entire Python community should go out to Neal Norwitz, who's done absolutely sterling work in shepherding Python 2.5 through to it's final release. Enjoy this new release, (and Woo-HOO! It's done!) Anthony Anthony Baxter anthony(a)python.org Python Release Manager (on behalf of the entire python-dev team)

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[ANN] buzhug-0.5 released
by Pierre Quentel Sept. 18, 2006

Sept. 18, 2006

Buzhug is a fast, portable, pure-Python database engine, with a Pythonic syntax (no SQL) This release introduces a client-server mode, for applications that need thread- or process- safety An optional parameter "mode" is added to the method create(), in case the base already exists the result can be to override with the new field definition, or to open the existing base Homepage : http://buzhug.sourceforge.net Regards, Pierre

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PyPy Sprint Announcement, Duesseldorf 30 Oct - 5 Nov
by Carl Friedrich Bolz Sept. 18, 2006

Sept. 18, 2006

Hi all! The next PyPy sprint will be held in the Computer Science department of Heinrich-Heine Universitaet Duesseldorf from the 30th of October to the 5th of November 2006. Topics and goals ---------------- The topics of the sprints are not fixed yet. We will progress on the subjects that we are currently working on, while giving a special priority to any topic that "non-core" people find interesting. There are many topics that could fit both category :-) Here are some examples: * Just-In-Time work. Two sub-topics: - write and/or optimize a machine-code backend (we have 386 only so far) - work on turning simple interpreters into JIT compilers (we cannot do this for the whole of the PyPy interpreter yet, we're getting there small step by small step). * Optimization of core Python data types, making full use of PyPy's flexible architecture and python-implemented (and then translated) type system. (We have already various dict and str implementations.) * "Next-step stuff" that will requires some thinking and design: - distribution (where a single program runs on multiple machines) - persistence (save an "image" of a running program, or a part of it) - security (in many possible senses of the word) * Working on py.test testing tool: - py.test recently grew some distribution features which are still rough around the edges and could use improvement - there are some more ideas for features of py.test around, like adding profiling capabilities (and more) * Work on the PyPy build tool: There are some plans to provide a tool that allows one to flexibly configure PyPy and to also request builds from a set of build servers. If there is interest there could be work in this area. * and as always, there is the topic of implementing or completing core extension modules (e.g. socket...). This is hacking with a mix of ctypes and RPython. Location -------- The sprint will (probably) take place in a seminar room of the geography department (which is getting assimilated by the cs department and is below it). It is in the building 25.12 of the university campus. For travel instructions see http://stups.cs.uni-duesseldorf.de/anreise/esbahn.php Registration ------------ If you'd like to come, please subscribe to the `pypy-sprint mailing list`_ and drop a note about your interests and post any questions. More organisational information will be send to that list. We'll keep a list of `people`_ which we'll update (which you can do so yourself if you have codespeak commit rights). .. _`pypy-sprint mailing list`: http://codespeak.net/mailman/listinfo/pypy-sprint .. _`people`: http://codespeak.net/pypy/extradoc/sprintinfo/ddorf2006b/people.html Cheers, Carl Friedrich Bolz & the PyPy team

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