Mailman 3 October 2004 - Python-announce-list

ANN: Naja 1.0.9 is now available
by webmaster＠keyphrene.com Oct. 16, 2004

Oct. 16, 2004

Naja is a download manager and a website grabber written in Python/wxPython.You can add some plugins (newsreader, FTP client,WebDAV client) and take control of your downloads from your office. Naja supports proxy(HTTP, HTTPS, FTP, SOCKS v4a, SOCKS v5), and use some authentication methods. The downloading maybe achieved by splitting the file being downloaded into several parts and downloading these parts at the same time (HTTP, HTTPS, FTP). Donwload speeds are increased by downloading the file from the mirrors sites, when the sites propose it. Others features: Csv filter Cheksums (CRC32, MD2, MD4, MD5, SHA, SHA1, MDC2, RMD160) Crypt (Only for the eXtended version) and Decrypt (AES, DES, 3DES ...) newsreader, newsposter (uue, yEnc) CGI & WebDAV Server Web Interface basic and digest authentication for client and server Compress and decompress (zip, tar.gz, tar.bz2) Picture viewer Text Editor

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ANN: Logging Package v0.4.9.5 released
by vinay_sajip＠yahoo.co.uk Oct. 15, 2004

Oct. 15, 2004

A new version of the Python logging package has been released. If you are using version 2.3 of later of Python, this release will not mean much to you - it is the same as recent checkins into Python CVS. However, this release fixes 1.5.2 compatibility bugs in the last independent release (0.4.9.4), and may be of interest to people using Python 1.5.2. What Does It Do? ================ The logging package offers the ability for any Python program to log events which occur during program execution. It's typically used to provide application diagnostics, warnings and error messages. In addition to capturing "what happened", "where it happened", "when it happened", "how important it is" and event specific data, you can configure, without changing the application source code, both the verbosity of logging and the routing of events to different destinations such as console, disk files, sockets, email addresses, Web servers, SOAP servers etc. etc. You can even change the configuration of a running program without stopping and restarting it! You can use the logging package in exception handlers, and it will include traceback information in the log. It's thread-safe, and very easy to use - just "import logging" and log away! Classes provided include: Logger - used to log messages for a particular area of an application. You can instantiate these wherever you want, there's no need to pass references to them around your application. You can log events based on importance levels of DEBUG (least important), INFO, WARN, ERROR, and CRITICAL (most important). You can define your own levels if the default levels don't meet your requirements. Handler - used to route events to particular destinations. Handlers included are: StreamHandler (for generalized streams, including console) FileHandler (for disk files - including log file rotation with size limits for log files) SocketHandler (for sending events to a TCP socket) DatagramHandler (for sending events to a UDP socket - faster, but less reliable than TCP) SMTPHandler (send events to arbitrary email addresses) HTTPHandler (send events to Web servers) SysLogHandler (send events to Unix syslog) MemoryHandler (batch up events and process them several at a time) NTEventLogHandler (send events to Windows NT event logs) There are also examples of XMLHandler and SOAPHandler in the distribution. Formatter - used to format events as text strings. Flexible "msg % arg_tuple" formatting is the basis for formatting, with flexible date/time formatting including ISO8601 and any strftime-based formats. Filter - used when filtering based on importance (DEBUG/INFO/WARNING/ERROR/CRITICAL) is not sufficient. The distribution includes examples of filters based on class matching, regular expression matching, value matching, and logger matching. In the unlikely event that you're daunted by all the apparent complexity, fear not. The package offers a simple function-based interface to allow very simple, almost casual use of the underlying features. In addition to the core logging functionality, you get the ability to configure logging using a ConfigParser-based text file format, a Tkinter-based GUI configurator which creates configuration files for you, and a simple network-based event receiver which receives events on TCP, UDP, HTTP and SOAP ports. This is suitable for testing and might perhaps serve as a model for your own event receivers. Also included are over 20 test scripts which serve both as test harnesses and examples of how to use the logging package. You can get more information from http://www.red-dove.com/python_logging.html There are "download" and "recent changes" links at the top of that page. API documentation is available at http://www.red-dove.com/logging/index.html As always, your feedback is most welcome (especially bug reports, patches and suggestions for improvement). Enjoy! Cheers Vinay Sajip Red Dove Consultants Ltd. Changes since the last independent release: =========================================== Removed 1.5.2 incompatibility involving *=, +=

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ANNOUNCE: Rx4RDF and Rhizome 0.4.1
by Adam Souzis Oct. 15, 2004

Oct. 15, 2004

Rx4RDF is application stack for building RDF-based applications and web sites. Rhizome is a Wiki-like content management and delivery system built on Rx4RDF that brings the Wiki metaphor to building dynamic web sites. What's new? (Since 0.3.0 -- I never got around to announcing 0.4.0.) 0.4.0: Rhizome gains full-text indexing, browsing and grouping by keyword, summary views, better support for RDF/XML, diffing in revisions view, and several usability enhancements. Raccoon gets several improvements to performance, security, and error handling. RxML and ZML syntax has been made more user-friendly with simpler syntax and better documentation. 0.4.1: RxPath adds support for RDFLib, if installed. Throughout all sub-systems: get non-ASCII content working. In addition, there have several other enhancements, see http://rx4rdf.liminalzone.org/changelog.txt for more details. More Info: * Rx4RDF is a set of technologies designed to make RDF more accessible and easier to use. It includes: ** RxPath provides a deterministic mapping between the RDF abstract syntax to the XPath data model, allowing you to query, transform and update a RDF model with languages syntactically indentical to XPath, XSLT and XUpdate (dubbed RxPath, RxSLT, and RxUpdate respectively). ** ZML is a Wiki-like text formatting language that lets you write arbitrary XML or HTML (using Python-esque indentation rules), enabling you to author XML documents with (nearly) the same ease as a Wiki entry. ** RxML is an alternative XML serialization for RDF that is designed for easy authoring in ZML, allowing novices to author and edit RDF metadata. * Raccoon is a simple application server that uses an RDF model for its data store, roughly analogous to RDF as Apache Cocoon is to XML. Raccoon uses RxPath to translate arbitrary requests (currently HTTP, XML-RPC and command line arguments) to RDF resources, each of which can be associated with RxSLT and RxUpdate stylesheets. * Rhizome is a Wiki-like content management and delivery system built on Raccoon that takes the concept of the Wiki to the next level: everything is editable, not just content but its meta-data and behavior, even the structure of the site itself. Furthermore, Wiki entries are abstract globally unique RDF resources that can have any kind of content and whose presentation is contextual. Homepage: http://rx4rdf.liminalzone.org/ Download: http://sourceforge.net/project/showfiles.php?group_id=85676 -- adam (asouzis at user.sf.net)

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SC-Track Roundup 0.7.8 - an issue tracking system
by Richard Jones Oct. 14, 2004

Oct. 14, 2004

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Roundup is a simple-to-use and -install issue-tracking system with command-line, web and e-mail interfaces. It is based on the winning design from Ka-Ping Yee in the Software Carpentry "Track" design competition. 0.7.8 is a bug fix release, patching a problem in the 0.7.7 release: - - Clean out sessions / otks tables when migrating If you're upgrading from an older version of Roundup you *must* follow the "Software Upgrade" guidelines given in the maintenance documentation. Roundup requires python 2.1.3 or later for correct operation. To give Roundup a try, just download (see below), unpack and run:: python demo.py Source and documentation is available at the website: http://roundup.sourceforge.net/ Release Info (via download page): http://sourceforge.net/projects/roundup Mailing lists - the place to ask questions: http://sourceforge.net/mail/?group_id=31577 About Roundup ============= Roundup manages a number of issues (with flexible properties such as "description", "priority", and so on) and provides the ability to: (a) submit new issues, (b) find and edit existing issues, and (c) discuss issues with other participants. The system will facilitate communication among the participants by managing discussions and notifying interested parties when issues are edited. One of the major design goals for Roundup that it be simple to get going. Roundup is therefore usable "out of the box" with any python 2.1+ installation. It doesn't even need to be "installed" to be operational, though a disutils-based install script is provided. It comes with two issue tracker templates (a classic bug/feature tracker and a minimal skeleton) and seven database back-ends (anydbm, bsddb, bsddb3, sqlite, metakit, mysql and postgresql). -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFBbwGBrGisBEHG6TARAi1NAJ46mveznmw2CwM0Esec5MGzd9Z7PwCfXd5a 8Iu1CXyCVdhCjCpXyFI2pxQ= =7EFC -----END PGP SIGNATURE-----

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ANNOUNCE: Quixote version 2.0a1 released
by Neil Schemenauer Oct. 14, 2004

Oct. 14, 2004

Quixote 2.0a1 is now available for download from: http://www.mems-exchange.org/software/quixote/ Note that this release should be considered alpha quality. We have a lot more changes planned before we reach version 2.0. The main purpose of this release is to give people who are interested in Unicode support something to play with. Also note that this version requires Python >= 2.3. Changes in Quixote 2.0a1 ------------------------ * Add support for unicode. The HTTPResponse object now has a set_charset() method. Also, the htmltext and TemplateIO types can contain unicode strings. * Add support to HTTPRequest for multipart/form-data type requests. Enhance MIME parsing so that it doesn't read huge lines into memory. Also implement parsing of application/x-www-form-urlencoded data rather than using the standard cgi.py module. Remove UPLOAD_DIR and UPLOAD_DIR_MODE config options. Uploaded files are now created using the tempfile module. * Use bool objects where appropriate. Prefer using builtin types over using the 'types' module. * Rewrite http_request.parse_cookie() and rename it to parse_cookies(). When generating cookies, escape quote characters that appear in cookie values. * Remove the DEBUG_LOG configuration option. Debugging output now always goes to the error log. * Remove HTTPRequest.dump_html() method and add dump_request to 'util' module. Remove obsolete functions from 'html' module (html_quote(), value_quote(), link() and render_tag()). * Remove form1 library and rename form2 to form. -- Neil Schemenauer nas(a)mems-exchange.org MEMS and Nano-technology Exchange http://www.mems-exchange.org

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ANN: PyOpenOffice 0.23 released
by me.simon＠t-online.de Oct. 14, 2004

Oct. 14, 2004

New since release 0.21: # 0.23 SXW Tables with different column widths now can be mapped to PDF - important for financial reports etc. (have a look at test.sxw). # History and cleanup functions for the temporary files generated by PyOpenOffice. # Reference implementation for usage of PyOpenOffice available on the same page: "Bezirksreiter" (open source software for church administration - sorry, only available in German language) # 0.22 Bugfixes for makeSerialLetters(): Multi:TFA-...-TFE rows do not have to be the last row of this table anymore. # You may now provide sourcefiles that are not in the directory of pyopenoffice.py (in earlier releases PyOpenOffice stopped with an error). # New feature for makeSerialLetters(): provide a preprocessed content.xml to the variable "content" (read the docstrings). Have a look at: http://www.bezirksreiter.de/PyOpenOffice.htm Martin Simon

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Re: Dr. Dobb's Python-URL! - weekly Python news and links (Oct 11)
by Greg Copeland Oct. 13, 2004

Oct. 13, 2004

On Mon, 11 Oct 2004 17:45:07 +0000, Ville Vainio wrote: > Global interpreter lock of CPython and multi-CPU scalability are > a recurrent theme in comp.lang.python. The current concern involves > the upcoming availability and popularity of multicore CPUs. > http://groups.google.com/groups?threadm=6db3f637.0410042045.2171ad5f40posti… This URL appears to be bad. Greg

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ANN: SciPy 0.3.2 Released
by Pearu Peterson Oct. 13, 2004

Oct. 13, 2004

Hi, Scipy 0.3.2 has been released and binaries are available from the scipy.org site: http://www.scipy.org Scipy 0.3.2 is a bug fix release of Scipy 0.3 including the following new features: - wxPython 2.5 support - reading/writing dense/sparse matrices in Matrix Market format - iterative solvers, new functions sqrtm, hessenberg - Constrained Optimization BY Linear Approximation - discrete Boltzmann, Planck, Levy distributions - Scipy tests pass now also on 64-bit systems and Mac OSX etc. The complete release notes can be found here: http://www.scipy.org/download/scipy_release_notes_0.3.2.html Best regards, Pearu BTW Scipy is: ------------- Scipy is an open source library of scientific tools for Python. Scipy supplements the popular Numeric module, gathering a variety of high level science and engineering modules together as a single package. Scipy includes modules for graphics and plotting, optimization, integration, special functions, signal and image processing, genetic algorithms, ODE solvers, and others.

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SC-Track Roundup 0.7.7 - an issue tracking system
by Richard Jones Oct. 13, 2004

Oct. 13, 2004

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Roundup is a simple-to-use and -install issue-tracking system with command-line, web and e-mail interfaces. It is based on the winning design from Ka-Ping Yee in the Software Carpentry "Track" design competition. 0.7.7 is a bug fix release, including: - - ZRoundup's search interface works now (sf bug 994957) - - fixed history display when "ascending" - - removed references to py2.3+ boolean values (sf bug 995682) - - fix static file path normalisation in security check (thanks David Linke) - - less specific messages for login failures (thanks Chris Withers) - - Reject raised against email messages should result in email rejection, not discarding of the message - - mailgw can override the MAIL_DEFAULT_CLASS - - handle Py2.3+ datetime objects as Date specs (sf bug 971300) - - use row locking in MySQL newid() (sf bug 1034211) - - add sanity check for sort and group on same property (sf bug 1033477) - - extend OTK and session table value cols to TEXT (sf bug 1031271) - - fix lookup of REMOTE_USER (sf bug 1002923) - - new Interval props weren't created properly in rdbms - - date.Interval() now accepts an Interval as a spec (sf bug 1041266) - - handle deleted properties in RDBMS history - - apply timezone in correct direction in user input (sf bug 1013097) - - more efficient find() in RDBMS (sf bug 1012781) - - pydotorg-specific change to mailgw to handle bizzaro permissions ;) If you're upgrading from an older version of Roundup you *must* follow the "Software Upgrade" guidelines given in the maintenance documentation. Roundup requires python 2.1.3 or later for correct operation. To give Roundup a try, just download (see below), unpack and run:: python demo.py Source and documentation is available at the website: http://roundup.sourceforge.net/ Release Info (via download page): http://sourceforge.net/projects/roundup Mailing lists - the place to ask questions: http://sourceforge.net/mail/?group_id=31577 About Roundup ============= Roundup manages a number of issues (with flexible properties such as "description", "priority", and so on) and provides the ability to: (a) submit new issues, (b) find and edit existing issues, and (c) discuss issues with other participants. The system will facilitate communication among the participants by managing discussions and notifying interested parties when issues are edited. One of the major design goals for Roundup that it be simple to get going. Roundup is therefore usable "out of the box" with any python 2.1+ installation. It doesn't even need to be "installed" to be operational, though a disutils-based install script is provided. It comes with two issue tracker templates (a classic bug/feature tracker and a minimal skeleton) and seven database back-ends (anydbm, bsddb, bsddb3, sqlite, metakit, mysql and postgresql). -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFBbKxsrGisBEHG6TARAvIoAJ9POoqG1554/M+g9Zka0et9xskM5wCfWixy 3+nPm9BRyMwG6KYQ/2KBeLE= =yiUy -----END PGP SIGNATURE-----

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Re: ANN: Nevow 0.3 released
by dude_js＠yahoo.com Oct. 13, 2004

Oct. 13, 2004

Try IAB Studio (www.iabstudio.com) from WorcsNet and feel difference. With IAB Studio, you will get everything you need for creating Web applications of any complexity. This toolset of suites includes unique all-in-one combination of Application Builder, Data Management/reposting and Workflow. Over 40 controls are available for users to design, simulate, run, monitor and administer your applications via the Internet. It is compatible with major databases and operating systems (Unix/Linux and Windows). Cheers Valentino Volonghi aka Dialtone <dialton3#NOSPAM.JJJJKIKK(a)virgilio.it> wrote in message news:<mailman.4047.1096423520.5135.python-announce-list(a)python.org>... > GET it here: http://www.nevow.com/releases/0.3.0/nevow-0.3.tar.gz > > More Informations: > > Nevow (pronounced nou-veau) is a web application construction kit written > in Python. It is designed to allow the programmer to express as much of > the view logic as desired in Python, and includes a pure Python XML > expression syntax named stan to facilitate this. However it also provides > rich support for designer-edited templates, using a very small XML > attribute language to provide bi-directional template manipulation > capability. > > Nevow also includes formless, a declarative syntax for specifying the > types of method parameters and exposing these methods to the web. Forms > can be rendered automatically, and form posts will be validated and input > coerced, rendering error pages if appropriate. Once a form post has > validated successfully, the method will be called with the coerced values. > > Finally, Nevow includes LivePage, a two-way bridge between JavaScript in > a browser and Python on the server. For 0.3, LivePage has been updated to > operate on Mozilla, Firefox, Windows Internet Explorer 6, and Safari on > Mac OS X. Event handlers can be written in pure Python and JavaScript > implementation details are hidden from the programmer, with Nevow taking > care of routing data to and from the server using XmlHttpRequest. > > * XHTML templates: contain no programming logic, only nodes tagged > with nevow attributes > * data/render methods: simplify the task of separating data from > presentation and writing view logic > * stan: An s-expression-like syntax for expressing xml in pure python > * formless: For describing the types of objects which may be passed to > methods of your classes, validating and coercing string input from > either web or command-line sources, and calling your methods > automatically once validation passes > * webform: For rendering web forms based on formless type > descriptions, accepting form posts and passing them to formless > validators, and rendering error forms in the event validation fails > * livepage: Cross-browser JavaScript glue for sending client side > events to the server and server side events to the client after the > page has loaded, without causing the entire page to refresh > > Links: > ML: http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-web > Bug Tracker: http://divmod.org/users/roundup.twistd/nevow/ > IRC: irc://irc.freenode.net/#twisted.web > Commits: http://divmod.org/users/mailman.twistd/listinfo/nevow-commits > > Homepages: > http://www.nevow.com > http://www.divmod.org/Home/Projects/Nevow/index.html > > What's New in Nevow 0.3: > > 2004-09-26 Donovan Preston <dp(a)divmod.org> > > * Added nevow.inevow.IQ interface, an interface for querying the > stan DOM. Eventually, this interface will contain APIs for doing > traditional DOM introspection, such as iterating children, > examining tag names, and examining attributes. For now, it contains > only the patternGenerator, onePattern, and allPatterns APIs. These > APIs have been deprecated from Context. > > The main benefit of this is the ability to do: > > IQ(loaders.xmlfile(...)).patternGenerator(...) > > which would be nice for creating "pattern library" files containing > common skin idioms which can then be copied and used throughout > the app. > > 2004-09-25 Donovan Preston <dp(a)divmod.org> > > * Chatola received a major facelift, bringing it from cool demo > up to almost a full fledged web-based chat server. The helper API > LiveEvil.call(...) was added, which deprecates > LiveEvil.sendScript(callJS(...)) > > 2004-09-23 Tommi Virtanen <tv(a)twistedmatrix.com> > > * Make guard.SessionWrapper store its URL location in all requests it > passes to its children. This allows the children know where to post > the __login__ and __logout__ forms, even deep inside the resource > tree (fixes issue59). > > * Guard now works as a non-root resource, with help from the above > change. Semantics of __login__ clarified in unit tests; if your guard > is at /foo, posting to /foo/__login__ redirects to /foo, and posting > to /foo/__login__/ redirects to /foo/. The two unit tests that failed > earlier now pass (with that change in their __login__ URLs). > > * If URL-based sessions are used, login no longer loses session > information due to redirect to / (fixes issue56). > > 2004-09-20 Matt Goodall <matt(a)pollenation.net> > > * Added URL.secure() method to make switching between http and > https easier. > > 2004-09-08 Donovan Preston <dp(a)divmod.org> > > * Nevow now includes a very simple proof-of-concept WSGI Application > implementation, and can be used with no Twisted dependency. Nevow can > also be used to write CGIs, either using a simple CGI WSGI gateway > (which supports URL traversal), or by using Page.renderString (which does not). > > * Two new context interfaces, ICurrentSegments and IRemainingSegments, > replace the need to examine the Request prepath and postpath attributes > directly. > > * ISerializable is deprecated, and has been replaced with a simple > Flattener registry. nevow.flat.registerFlattener and > nevow.flat.getFlattener have been added to support this. > > 2004-09-06 Donovan Preston <dp(a)divmod.org> > > * BACKWARDS INCOMPATIBLE CHANGE. Page.configurable_ *always* returns > self, and a new Page.configurable_original *always* returns > self.original. If you were relying on Page.configurable_'s > introspection behavior and are now getting errors about adapting > to IConfigurable, change your renderForms() calls to: > > renderForms('original') > > This causes Page.configurable_original to be invoked and > introspected for form rendering. > > 2004-08-23 Donovan Preston <dp(a)divmod.org> > > * LivePage uses a simpler implementation strategy which requires > the browser to make one request per output event. As a result, > LivePage now works on Mozilla, Safari, and Internet Explorer Windows. > > 2004-08-05 Donovan Preston <dp(a)divmod.org> > > * Implemented support for IFoo(ctx) synonym syntax. It does the > same thing as ctx.locate(IFoo) > > * Removed Resource Generators, a feature of NevowSite that nobody > used and wasn't really useful. > > * Changed all inevow.IResource apis to take a Context object > where they used to take the request. Remembering objects in > PageContexts is now much easier, and fewer hacks are required to > build the context chain. The context chain now looks like: > > SiteContext->RequestContext->PageContext(s)->WovenContext(s) > > 2004-7-28 Donovan Preston <dp(a)divmod.org> > > * Parameterize data_* methods in the same way as render_* methods. > Patch by k3mper. > > For example, <div nevow:data="foo bar,baz" /> will cause > data_foo(self, bar, baz) to be called with the strings "bar" and > "baz". This data method should return a callable taking ctx, data. > The return value of this callable will be remembered as IData at > this point in the context stack. > > * Added list-slicing support to ListContainer. You may now use > list slicing syntax in a data directive in addition to a simple > index. For example: > > def data_aList(self, ctx, data): > return ["Buckle", "My", "Shoe"] > > <div nevow:data="aList"> > <span nevow:data="1:-1" nevow:render="string" /> > </div> > > Will render as <div><span>My</span></div> > > 2004-7-20 Matt Goodall <matt(a)pollenation.net> > > * Modified sax loader to retain doctypes, comments and xmlns attributes. > It's now possible to build XHTML valid pages :). > > xmlns attributes are always kept but there are options to ignore the doctype > and comment (at the request of foom, not sure why yet). Right now, the default > is to retain doctypes and comments but you can use the ignoreDocType and > ignoreComment args to the xml loaders and flatsax parse functions. This bit > may change. > > * Add a URL -> IResource adapter that performs a HTTP redirect. URLs can then > be returned from locateChild(). > > 2004-06-07 Donovan Preston <dp(a)divmod.org> > > * Added nevow.canvas, an experimental module similar to LivePage > which provides a Python server-side API for drawing arbitrary lines, > curves, and text in the browser. The implementation is socket-based > and asynchronous, so the server can issue drawing commands to the > client at any time. > > The idea is to provide a server-side API to the Python programmer > and shield them from implementation details, but the current > implementation uses a pre-compiled Flash movie (which never changes; > we are not generating Flash bytecodes). An implementation using SVG > or Safari's Canvas (nevow.canvas was written before the Safari Canvas > announcement) would be possible. > > 2004-05-26 Donovan Preston <dp(a)divmod.org> > > * Add URLOverlay.keep, an API which lets you specify which query args > will be carried on from the current page render into the new URL. > > 2004-05-24 Matt Goodall <matt(a)pollenation.net> > > * Extracted Fragment from Page. Hopefully, it will make it more obvious > that embedding an object with data_ and render_ methods in a stan tree is > possible without using something as "heavy" as Page which is really meant > to be a web resource. > > 2004-05-23 Donovan Preston <dp(a)divmod.org> > > * Added some useful APIs to LiveEvil for manipulating the client-side > page: > > - flt(stan): Flatten some stan, quoting apostrophes as > as appropriate for embedding in javascript > > - set(what, to): Set the contents of the client-side node > with the id 'what' to the stan 'to'. > > - append(where, what): Append the stan 'what' to the client- > side node with the id 'where' > > - alert(what): Show an alert to the user with the text "what"

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