Python-announce-list May 2005

python-announce-list@python.org

62 participants
92 discussions

[ANNOUNCE] gmpy 1.0 alpha released
by Alex Martelli 12 Nov '05

12 Nov '05

See http://gmpy.sourceforge.net/ for details. What is it: a wrapper for the GMP library, to provide multi-precision arithmetic for Python. Multi-precision floats, and unbounded-precision rationals, are not present in stock Python; multi-precision integers ('long') are, but gmpy's version of multi-precision integers is faster for some operations (NOT all -- used to be, but Python 2.3 did serious enhancements to some operations on longs) and provides lots of nifty pre-packaged additional functions. Minor changes and bug-fixes since the latest 0.9 pre-alpha; support for Python 2.3. The Windows binary release is now for Python 2.3 _only_ (if you're stuck with Python 2.2 on Windows, you can keep using gmpy 0.9 pre-alpha and not really suffer from that). Known bug on Windows: the scan0 and scan1 functions appear broken (perhaps related to the lack of a GMP 4.0 library for Windows -- haven't found one around yet). Alex

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ANN: AsciiDoc 6.0.0 released
by Stuart Rackham 09 Jun '05

09 Jun '05

AsciiDoc -------- AsciiDoc is an uncomplicated text document format for writing short documents, articles, books and UNIX man pages. AsciiDoc files can be translated to HTML (with or without stylesheets), DocBook (articles, books and refentry documents) and LinuxDoc using the asciidoc(1) command. AsciiDoc is configurable: both the AsciiDoc source file syntax and the backend output markups (which can be almost any type of SGML/XML markup) can be customized and extended by user. Requisites ---------- Python 2.3 or higher. Obtaining AsciiDoc ------------------ The latest AsciiDoc version, examples and online documentation can be found at the AsciiDoc website http://www.methods.co.nz/asciidoc/ AsciiDoc is also hosted at the SourceForge at http://sourceforge.net/projects/asciidoc/ Best regards, --- Stuart Rackham <srackham(a)methods.co.nz>

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Dr. Dobb's Python-URL! - weekly Python news and links (May 31)
by Simon Brunning 31 May '05

31 May '05

QOTW: "Not tested but confident should be an oxymoron for a programmer." - Peter Otten (Asked "Is this unsurprising if I look at it right?") - "Yes; in general this is true across many domains for a very large number of referents of "it" :-)" - John Machin "Strong typing means there [are] a lot of variables whose names are in ALL CAPS." - Paul Rubin One common Python "gotcha" is that default argument values are only evaluated once, at function definition time. David Isaac wanted to know where the values are stored: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/b… A new era in Python package management? http://dirtsimple.org/2005/05/easyinstall-new-era-in-python-package.html Markus would like to limit his Python script to a fixed percentage of CPU usage: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/1… How do you drive-by-wire a car using Python? The Pegasus Team is doing some very cool stuff with Python - but I'd want to see their test results before going within a mile of the thing. http://pegasusbridge.blogspot.com/2005/05/how-do-you-drive-by-wire-car-usin… Michael Smith wanted to check poker-dice rolls to see if they were a full house. Raymond Hettinger gives him general purpose card hand detection code: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/1… George asks for help with a regexp to do quoted string parsing, then is shown the light, and uses PyParsing instead. http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/7… Fuzzyman tells us how to build a Movable Python CD - that is, Python that you can run straight off the CD without any installation - with a custom set of packages: http://www.voidspace.org.uk/python/weblog/arch_d7_2005_05_21.shtml#e48 Why is Python case-sensitive? Because mathematical notation is, apparently: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/6… Mark Williamson has difficulty generating API documentation. Python still needs a javadoc analogue that doesn't import code, it seems: <http://www.pagefall.com/musings/2005/05/27/twisted,python,documentation,arr…!> Gabor would like to be able to write to a single text file from multiple processes simultaneously. This is hard. http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/4… Eval is unsafe at any speed. Duncan Booth takes on all comers and shows that you can do dangerous things with eval regardless of attempts to make it safe: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/c… Notable releases: Twisted 2.0.1 http://twistedmatrix.com/ wxPython 2.6.0.1 http://wxpython.org/ IPython 0.6.14 http://ipython.scipy.org/ ======================================================================== Everything Python-related you want is probably one or two clicks away in these pages: Python.org's Python Language Website is the traditional center of Pythonia http://www.python.org Notice especially the master FAQ http://www.python.org/doc/FAQ.html PythonWare complements the digest you're reading with the marvelous daily python url http://www.pythonware.com/daily Mygale is a news-gathering webcrawler that specializes in (new) World-Wide Web articles related to Python. http://www.awaretek.com/nowak/mygale.html While cosmetically similar, Mygale and the Daily Python-URL are utterly different in their technologies and generally in their results. For far, FAR more Python reading than any one mind should absorb, much of it quite interesting, several pages index much of the universe of Pybloggers. http://lowlife.jp/cgi-bin/moin.cgi/PythonProgrammersWeblog http://www.planetpython.org/ http://mechanicalcat.net/pyblagg.html comp.lang.python.announce announces new Python software. Be sure to scan this newsgroup weekly. http://groups.google.com/groups?oi=djq&as_ugroup=comp.lang.python.announce Steve Bethard, Tim Lesher, and Tony Meyer continue the marvelous tradition early borne by Andrew Kuchling, Michael Hudson and Brett Cannon of intelligently summarizing action on the python-dev mailing list once every other week. http://www.python.org/dev/summary/ The Python Package Index catalogues packages. http://www.python.org/pypi/ The somewhat older Vaults of Parnassus ambitiously collects references to all sorts of Python resources. http://www.vex.net/~x/parnassus/ Much of Python's real work takes place on Special-Interest Group mailing lists http://www.python.org/sigs/ The Python Business Forum "further[s] the interests of companies that base their business on ... Python." http://www.python-in-business.org Python Success Stories--from air-traffic control to on-line match-making--can inspire you or decision-makers to whom you're subject with a vision of what the language makes practical. http://www.pythonology.com/success The Python Software Foundation (PSF) has replaced the Python Consortium as an independent nexus of activity. It has official responsibility for Python's development and maintenance. http://www.python.org/psf/ Among the ways you can support PSF is with a donation. http://www.python.org/psf/donate.html Kurt B. Kaiser publishes a weekly report on faults and patches. http://www.google.com/groups?as_usubject=weekly%20python%20patch Cetus collects Python hyperlinks. http://www.cetus-links.org/oo_python.html Python FAQTS http://python.faqts.com/ The Cookbook is a collaborative effort to capture useful and interesting recipes. http://aspn.activestate.com/ASPN/Cookbook/Python Among several Python-oriented RSS/RDF feeds available are http://www.python.org/channews.rdf http://bootleg-rss.g-blog.net/pythonware_com_daily.pcgi http://python.de/backend.php For more, see http://www.syndic8.com/feedlist.php?ShowMatch=python&ShowStatus=all The old Python "To-Do List" now lives principally in a SourceForge reincarnation. http://sourceforge.net/tracker/?atid=355470&group_id=5470&func=browse http://python.sourceforge.net/peps/pep-0042.html The online Python Journal is posted at pythonjournal.cognizor.com. editor(a)pythonjournal.com and editor(a)pythonjournal.cognizor.com welcome submission of material that helps people's understanding of Python use, and offer Web presentation of your work. del.icio.us presents an intriguing approach to reference commentary. It already aggregates quite a bit of Python intelligence. http://del.icio.us/tag/python *Py: the Journal of the Python Language* http://www.pyzine.com Archive probing tricks of the trade: http://groups.google.com/groups?oi=djq&as_ugroup=comp.lang.python&num=100 http://groups.google.com/groups?meta=site%3Dgroups%26group%3Dcomp.lang.pyth… Previous - (U)se the (R)esource, (L)uke! - messages are listed here: http://www.ddj.com/topics/pythonurl/ (requires subscription) http://groups-beta.google.com/groups?q=python-url+group:comp.lang.python*&s… http://purl.org/thecliff/python/url.html (dormant) or http://groups.google.com/groups?oi=djq&as_q=+Python-URL!&as_ugroup=comp.lan… Suggestions/corrections for next week's posting are always welcome. E-mail to <Python-URL(a)phaseit.net> should get through. To receive a new issue of this posting in e-mail each Monday morning (approximately), ask <claird(a)phaseit.net> to subscribe. Mention "Python-URL!". -- The Python-URL! Team-- Dr. Dobb's Journal (http://www.ddj.com) is pleased to participate in and sponsor the "Python-URL!" project.

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RELEASED Mailman 2.1.6
by Barry Warsaw 31 May '05

31 May '05

On behalf of the development team, I'm pleased to announce the release of GNU Mailman 2.1.6. This is a significant release, which includes three important security patches, updated Chinese (zh_TW and zh_CN) support, better compatibility with Python 2.4, a few new features, and many bug fixes. Mailman is free software for managing email mailing lists and e-newsletters. This release fixes CAN-2005-0202, a reported vulnerability in path traversal in the private archive script. This release also provides an option for sites to produce more cryptographically secure auto-generated passwords, and it closes a potential cross-site scripting hole. Because of the security (and other) fixes, it is highly recommended that all sites upgrade to 2.1.6. For more information, please see: http://www.list.org http://mailman.sf.net http://www.gnu.org/software/mailman On a personal note, I owe a debt of gratitude to Tokio Kikuchi, who served as release manager for 2.1.6, integrated countless patches, and coordinated the Chinese language updates for this release. Please join me in thanking him for helping out so much. For links to download the Mailman 2.1.6 source tarball, see: http://sourceforge.net/project/showfiles.php?group_id=103 Enjoy, -Barry

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Albatross 1.30 released
by Andrew McNamara 31 May '05

31 May '05

OVERVIEW Albatross is a small toolkit for developing highly stateful web applications. The toolkit has been designed to take a lot of the pain out of constructing intranet applications although you can also use Albatross for deploying publicly accessed web applications. In slightly more than 4500 lines of Python (according to pycount) you get the following: * An extensible HTML templating system similar to DTML including tags for: - Conditional processing. - Macro definition and expansion. - Sequence iteration and pagination. - Tree browsing. - Lookup tables to translate Python values to arbitrary template text. * Application classes which offer the following features: - Optional server side or browser side sessions. - The ability to place Python code for each page in a dynamically loaded module, or to place all page processing code in a single mainline. * The ability to deploy applications as CGI, FastCGI, mod_python or a pure python HTTP server by changing less than 10 lines of code. The toolkit application functionality is defined by a collection of fine grained mixin classes. Nine different application types and six different execution contexts are prepackaged, you are able to define your own drop in replacements for any of the mixins to alter any aspect of the toolkit semantics. Application deployment is controlled by your choice of either cgi, FastCGI, mod_python, or BaseHTTPServer Request class. It should be possible to develop a Request class for Medusa or Twisted to allow applications to be deployed on those platforms with minimal changes. Albatross comes with over 170 pages of documentation. HTML, PDF and PostScript formatted documentation is available from the toolkit homepage. The toolkit homepage: http://www.object-craft.com.au/projects/albatross/ The Albatross mailing list subscription and archives: http://object-craft.com.au/cgi-bin/mailman/listinfo/albatross-users CHANGES SINCE 1.20 * Any HTML tag can now be prefixed with "al-" allowing any attribute to be the result of python evaluation. For example: <al-td colspanexpr="i.span()"> could produce <td colspan="3"> and: <al-input name="abc.value" disabledbool="abc.isdisabled()"> could produce <input name="abc.value" disabled> * Since macros and lookups are an application global resource, they can only be defined once per application, however this was not previously checked. Redefinition of macros or lookups will now result in an ApplicationError exception. * an in-line version of the <al-lookup> tag has been introduced, which is expanded in place if the tag has an expr= attribute. * a new <al-require> tag has been added to allow templates to assert that specific Albatross features are available, or templating scheme version number is high enough. * "Cache-Control: no-cache" is now set in addition to "Pragma: no-cache" - the former is defined for HTTP/1.1, the later for HTTP/1.0. * Simplified session cookie handling. BUGFIXES SINCE 1.20: * FastCGI apps were not being explicitly finalised, relying instead on their object destructor, with the result that writing application output (or errors) would be indefinitely deferred if object cycles existed. We now call "fcgi.Finish()" from the fcgiapp Request.return_code() method. * When handling exceptions, the traceback is now explicitly deleted from the local namespace to prevent cycles (otherwise the garbage collection of other objects in the local namespace will be delayed). * Two fixes to the <al-select> tag: the albatross-specific "list" attribute was leaking into resulting markup, and the use of the "expr" attribute would result in invalid markup being emitted. * Thanks to Robert Fendt for picking this up: the Albatross-generated hidden field input element must not appear naked inside a form element for strict HTML conformance. The solution is to wrap the input elements in div. * BranchingSession sessions could not be "deleted" - the solution is to add a dummy "session" shared by all branches, which is deleted when one branch "logs out". -- Andrew McNamara, Senior Developer, Object Craft http://www.object-craft.com.au/

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[ANN] IPython 0.6.14.
by Fernando Perez 30 May '05

30 May '05

Hi all, I've just made the 0.6.14 release of IPython, mostly to fix the inevitable bugs reported after the .13 one (though one big improvement sneaked by). IPython's homepage is at: http://ipython.scipy.org and downloads are at: http://ipython.scipy.org/dist I've provided RPMs (for Python 2.3 and 2.4, built under Fedora Core 3), plus source downloads (.tar.gz). Fedora users should note that IPython is now officially part of the Extras repository, so they can get the update from there as well (though it may lag by a few days). There is also a native win32 installer which should work correctly for both Python 2.3 and 2.4. Debian, Fink and BSD packages for this version should be coming soon, as the respective maintainers (many thanks to Jack Moffit, Andrea Riciputi and Dryice Liu) have the time to follow their packaging procedures. Many thanks to Enthought for their continued hosting support for IPython, and to all the users who contributed ideas, fixes and reports. I'd like to add a special thanks to Denis Rivière, Yann Cointepas and Benjamin Thyreau for their hard work on the Qt improvements, and for their overall hospitality. Python really seems to have a remarkably friendly community, worldwide! WHAT is IPython? ---------------- 1. An interactive shell superior to Python's default. IPython has many features for object introspection, system shell access, and its own special command system for adding functionality when working interactively. 2. An embeddable, ready to use interpreter for your own programs. IPython can be started with a single call from inside another program, providing access to the current namespace. 3. A flexible framework which can be used as the base environment for other systems with Python as the underlying language. Release notes ------------- As always, the NEWS file can be found at http://ipython.scipy.org/NEWS, and the full ChangeLog at http://ipython.scipy.org/ChangeLog. The highlights of this release follow. This is mainly a bugfix release, to clean up the problems reported in 0.6.13. As I said at the time, I intend to start new development now (more details on that in a separate email). As always, however, a few new goodies managed to sneak by. * A new -qthread option to support controlling Qt apps from within ipython, similar to what -gthread and -wthread do for GTK/WX. This was contributed by Denis Rivière <nudz-AT-free.fr>, Yann Cointepas <yann-AT-sapetnioc.org> and Benjamin Thyreau <Benji2-AT-decideur.info>. Many thanks to them! The lack of Qt support was a glaring omission of ipython's gui features, so I'm extremely happy to have their contribution. For those of you who may be matplotlib users as well, I should note that as of mpl 0.81 (the next release, or use current CVS), the -pylab option will also support interactive matplotlib use with the Qt backend. This is also thanks to work done by Denis, Yann and Benjamin against the matplotlib Qt backend, in conjunction with the IPython improvements. * New -e option to %run to suppress tracebacks from sys.exit() calls. This can be very useful to silence all the noise generated when running unittests from within ipython. * New ';' escape to autoquote a line without splitting: In [6]: ,foo a b c ------> foo("a", "b", "c") In [7]: ;foo a b c ------> foo("a b c") In the process, I fixed ',' quoting, which I'd broken in .13. * Fix -wthread to work with WXPython 2.6 (this also impacts matplotlib users who run the WX backend). * Added new matcher (it goes at the end of the priority list) to do tab-completion on named function arguments. Submitted by George Sakkis <gsakkis-AT-eden.rutgers.edu>. See the thread at http://www.scipy.net/pipermail/ipython-dev/2005-April/000436.html for more details. * Various other fixes for obscure bugs, but all of which caused reported IPython crashes. Details in Changelog. Enjoy, and as usual please report any problems. Regards, Fernando.

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ANN: wxPython 2.6.0.1
by Robin Dunn 30 May '05

30 May '05

Announcing ---------- I'm pleased to announce the 2.6.0.1 release of wxPython, now available for download at http://wxpython.org/download.php. This release consists mostly of bug fixes made since the 2.6.0.0 release a month ago. What is wxPython? ----------------- wxPython is a GUI toolkit for the Python programming language. It allows Python programmers to create programs with a robust, highly functional graphical user interface, simply and easily. It is implemented as a Python extension module that wraps the GUI components of the popular wxWidgets cross platform library, which is written in C++. wxPython is a cross-platform toolkit. This means that the same program will usually run on multiple platforms without modifications. Currently supported platforms are 32-bit Microsoft Windows, most Linux or other Unix-like systems using GTK or GTK2, and Mac OS X. Changes in 2.6.0.1 ------------------ Added wx.BrushFromBitmap to create a stippled brush in a single step. Also added missing brysh style flags: wx.STIPPLE_MASK wx.STIPPLE_MASK_OPAQUE. wxMSW: Fix for default control colours when the system text fg colour is not black. wxGTK: Patch #1171754, It is now possible to have a menu item that both has an icon and is a submenu. wxMSW: Patch #1197009, better refreshes when windows are moved and resized. wxMSW: Patch #1197468. Keeps track of pending size/position changes in case there is more than one adjustment for a window in a single DeferWindowPos set, then the pending values can be used for defaults instead of current values. Fixed the typemap that converts a Python list of strings to a wxArrayString so it uses the wxPython default encoding. Several docstrings added and updated. Lots more to go. wxMac: Strings added to the clipboard or used in DnD no longer have an extra null character at the end. Added wx.GetXDisplay that returns a raw swigified pointer for the X11 Display, or None for the non-X11 platforms. wxMenu: Don't send an event when selecting an already selected radio item. Added wx.LaunchDefaultBrowser. wxMSW: Fixed erroneous selection of content in wx.ComboBox when within a wx.StaticBox. wxMSW: Fixed alpha blitting to take into account source position. Ensure that Python is still in an initialized state before doing any locking or unlocking in wxPyBeginBlockThreads and wxPyEndBlockThreads as these can be triggered after Python has been finalized in embedding situations. Added alternate constructors for wx.Font: wx.FontFromPixelSize, wx.FFont, wx.FFontFromPixelSize. See the docstrings or new api docs for details. Added wx.lib.hyperlink from Andrea Gavana. It is a control like static text that acts like a hyper-link, launching the system's default browser in response to the clicks. Added an optional parameter to wxversion.select that allows you to specify that the extra components specified in the version string are required. For example, if you ask for "2.6-unicode" but only the ansi version is installed then by default the ansi version will be selected as it considered close enough since the version numbers match. If you want to force the options to be required then you can just add a True parameter, like this:: import wxversion wxversion.select("2.6-unicode", True) import wx Tweaked wx.lib.buttons such that flat buttons (e.g. have no bevel and a wx.BORDER_NONE style flag) paint themed backgrounds if there are transparent areas and the parent is displaying a theme. wxMSW: Fix for wrong sash colour of wx.SplitterWindow in the silver theme on XP. Added a wx.xrc.XmlResourceHandler for the Ticker class. See wx/lib/ticker_xrc.py wxSTC: Fixed CmdKeyAssign key bindings for Ctrl-Backspace. wxMSW: Fixed a bug in wx.TextCtrl where all the lines were being used to calculate the best size, instead of using a reasonable limit. XRCed: Use wx.GetDefaultPyEncoding/wx.SetDefaultPyEncoding for changing active encoding. Fixed pasting siblings (Ctrl key pressed while pasting). wx.lib.filebrowsebutton: Bug fix from Chad Netzer for when self.history is None. wx.ogl: Patch from Davide Salomoni that adds an optional point parameter to LineShape.InsertLineControlPoint allowing one to optionally specify where the new control point has to be drawn. wxMSW: setting foreground colour for wx.CheckBox now works when using XP themes. More updates to the docview library modules and sample apps from the ActiveGrid folks. Their sample IDE is now able to integrate with Subversion. wx.grid.Grid: Ensure that the grid gets the focus when it is left-clicked. Note that if you have custom widgets that handle the EVT_LEFT_DOWN event but do not call event.Skip() then you will probably want to add a call to self.SetFocus in the event handler. wxGTK: Add wxSTAY_ON_TOP support [Patch 1206023] wx.TreeCtrl: wx.EVT_TREE_ITEM_MENU event made consistent on all platforms. The location of the click or the item is included in the event as well. wxGTK: Setting background colour of a window now only affects the window itself, not the borders, scrollbars, etc. (Bug #1204069) Print framework: Add more paper sizes and code to fallback to an explicit paper size if a known paper size is not found for the printer. wxMac: Applied patch for bug #1206181 Option-key decodes are wrong, also applied patch for bug #1205691 Modified Fn keys don't work. wx.Image: Fixed to preserve alpha channel in Rotate90 method. wxMSW: Fixed incorrect background colour on wx.CheckListBox. wxMSW: Fixed drawing of owner drawn buttons with multiline labels Removed a bunch of unnecessary files, and removed or replaced images that we're not sure of their origin or license. The default DoGetBestSize is updated to not always return the current size if the window has no sizer, children, or minsize set. Instead the current size is set as the minsize. This solves the occasional problem where a sizer may cause a childless panel to grow but never shrink. wxMSW: When converting a wx.Icon to a bitmap check if the icon has an alpha channel and set the bitmap to use it. Fixed the wrong class name used in wx.PyScrolledWindow's call to _setCallbackInfo. wxMSW: patch #1207202, Fixes GDI leak when using stock cursors. wx.calendar.CalendarCtrl: Patch #1207531, Keeps the CalendarCtrl wide enough even when the weekday names for the locale are shorter than usual. Made GridCellNumberEditor.StartingKey also insert the typed char when there is a range of allowed values (so a wx.SpinCtrl is used instead of a wx.TextCtrl.) -- Robin Dunn Software Craftsman http://wxPython.org Java give you jitters? Relax with wxPython!

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ANNOUNCE: nautilus-python 0.4.0
by Johan Dahlin 30 May '05

30 May '05

I am pleased to announce the first public release of nautilus-python. The new release is available from ftp.gnome.org: http://ftp.gnome.org/pub/GNOME/sources/nautilus-python/0.4/nautilus-python-… I'd like to thank the following people, for helping me during the development: Sidnei da Silva, Gustavo Carneiro, Thomas Vander Stichele, Sebastien Bacher and Ross Burton. Sidnei da Silva is writing an integration tool for plone desktop: http://awkly.org/files/menu.png Ross Burton is writing a dpkg interface. Blurb: Nautilus is the file manager used by the GNOME desktop environment. Nautilus-python provides bindings for the extension API in nautilus. With help of it you can write extensions that goes beyond the standard shell script interface like context menuitems, additional list columns and property pages. nautilus-python requires nautilus >= 2.6.0, PyGTK >= 2.4.0, gnome-python 2.0.0 and Python >= 2.3 Bug reports should be made in GNOMEs bugzilla: http://bugzilla.gnome.org/enter_bug.cgi?product=nautilus-python -- Johan Dahlin johan(a)gnome.org

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ANN: PLY-1.6 (Python Lex Yacc)
by David Beazley 29 May '05

29 May '05

May 27, 2005 Announcing : PLY-1.6 (Python Lex-Yacc) http://www.dabeaz.com/ply I'm pleased to announce a new update to PLY---a 100% Python implementation of the common parsing tools lex and yacc. PLY was originally written to support an introduction to compilers course and has been freely available since 2001. However, the 1.6 release expands PLY's capabilities to include full LALR(1) parsing just like the popular yacc and bison tools (earlier versions of PLY only provided SLR parsing). Here are a few PLY highlights: - PLY is closely modeled after traditional lex/yacc. If you know how to use these tools in C, you will find PLY to be similar. - PLY provides *very* extensive error reporting and diagnostic information to assist in parser construction. The original implementation was developed for instructional purposes. As a result, the system tries to identify the most common types of errors made by novice users. - PLY provides full support for empty productions, error recovery, precedence rules, and moderately ambiguous grammars. - Parsing is based on LR-parsing which is fast, memory efficient, better suited to large grammars, and which has a number of nice properties when dealing with syntax errors and other parsing problems. Currently, PLY can build its parsing tables using either SLR or LALR(1) algorithms. Note: traditional yacc tools typically use LALR(1). - PLY can be used to build parsers for large programming languages. Although it is not ultra-fast due to its Python implementation, PLY can be used to parse grammars consisting of several hundred rules (as might be found for a language like C). The lexer and LR parser are also reasonably efficient when parsing normal sized programs. More information about PLY can be obtained on the PLY webpage at: http://www.dabeaz.com/ply PLY is freely available and is licensed under the terms of the Lesser GNU Public License (LGPL). Cheers, David Beazley (http://www.dabeaz.com)

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Updated Cygwin Package: python-2.4.1-1
by Jason Tishler 27 May '05

27 May '05

New News: === ==== I have updated the version of Python to 2.4.1-1. The tarballs should be available on a Cygwin mirror near you shortly. The following are the notable changes since the previous release: o upgrade to Python 2.4.1 o apply SourceForge patch #1197318 to resolve problems importing symlinked modules Old News: === ==== Python is an interpreted, interactive, object-oriented programming language. If interested, see the Python web site for more details: http://www.python.org/ Please read the README file: /usr/share/doc/Cygwin/python-2.4.README since it covers requirements, installation, known issues, etc. Standard News: ======== ==== To update your installation, click on the "Install Cygwin now" link on the http://cygwin.com/ web page. This downloads setup.exe to your system. Then, run setup and answer all of the questions. If you have questions or comments, please send them to the Cygwin mailing list at: cygwin(a)cygwin.com . *** CYGWIN-ANNOUNCE UNSUBSCRIBE INFO *** If you want to unsubscribe from the cygwin-announce mailing list, look at the "List-Unsubscribe: " tag in the email header of this message. Send email to the address specified there. It will be in the format: cygwin-announce-unsubscribe-you=yourdomain.com(a)cygwin.com If you need more information on unsubscribing, start reading here: http://sources.redhat.com/lists.html#unsubscribe-simple Please read *all* of the information on unsubscribing that is available starting at this URL. Jason -- PGP/GPG Key: http://www.tishler.net/jason/pubkey.asc or key servers Fingerprint: 7A73 1405 7F2B E669 C19D 8784 1AFD E4CC ECF4 8EF6

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Python-announce-list May 2005