Mailman 3 July 2005 - Python-announce-list

ANN: buildutils-0.1.0 - Distutils extensions for developing Python libraries and applications.
by Ryan Tomayko July 7, 2005

July 7, 2005

I'm happy to announce that an initial 0.1.0 version of Python Buildutils is available. The `buildutils` package contains extensions to Python's standard distribution utilities (`distutils`) that are often useful during the development of Python projects. Buildutils was created to scratch an itch: removing ``make`` from the Python development process and partially to gain a better understanding of how `distutils` works. The following extension commands are included: announce send a release announcement to mailing lists like python-announce-list(a)python.org checksum generate MD5 and SHA-1 checksum files for distributables. etags generate an TAGS file over all packages and module (for use in Emacs). flakes find lint using the pyflakes utility. info dumps information about the project. publish push distributables and documentation up to a project site using ssh/scp/sftp. pudge build Python documentation from restructured text documents and Python doc strings. pytest run py.test unit tests. stats dump statistics on the number of lines, files, modules, packages, etc. use bring in a working version of a dependency (uses setuptools egg stuff). For more information, including User's Guide, Command Reference, and installation options, visit the Buildutils project site: <http://buildutils.lesscode.org/> There's also a bit more information on the release at the lesscode.org blog: <http://lesscode.org/> Ryan Tomayko <rtomayko(a)lesscode.org>

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ANN: python-constraint 1.0
by Gustavo Niemeyer July 6, 2005

July 6, 2005

-------- Overview -------- **python-constraint** [1]_ is a Python module offering solvers for Constraint Solving Problems (CSPs) over finite domains in simple and pure Python. CSP is class of problems which may be represented in terms of variables (`a`, `b`, ...), domains (`a in [1, 2, 3]`, ...), and constraints (`a < b`, ...). .. [1] http://codespeak.net/~niemeyer/constraint/ -------- Examples -------- Basic ----- Here is a basic interactive example:: >>> from constraint import * >>> problem = Problem() >>> problem.addVariable("a", [1,2,3]) >>> problem.addVariable("b", [4,5,6]) >>> problem.getSolutions() [{'a': 3, 'b': 6}, {'a': 3, 'b': 5}, {'a': 3, 'b': 4}, {'a': 2, 'b': 6}, {'a': 2, 'b': 5}, {'a': 2, 'b': 4}, {'a': 1, 'b': 6}, {'a': 1, 'b': 5}, {'a': 1, 'b': 4}] >>> problem.addConstraint(lambda a, b: a*2 == b, ("a", "b")) >>> problem.getSolutions() [{'a': 3, 'b': 6}, {'a': 2, 'b': 4}] >>> problem = Problem() >>> problem.addVariables(["a", "b"], [1, 2, 3]) >>> problem.addConstraint(AllDifferentConstraint()) >>> problem.getSolutions() [{'a': 3, 'b': 2}, {'a': 3, 'b': 1}, {'a': 2, 'b': 3}, {'a': 2, 'b': 1}, {'a': 1, 'b': 2}, {'a': 1, 'b': 3}] Rooks ----- Here is an example solving the classical rooks problem:: problem = Problem() numpieces = 8 cols = range(numpieces) rows = range(numpieces) problem.addVariables(cols, rows) for col1 in cols: for col2 in cols: if col1 < col2: problem.addConstraint(lambda row1, row2: row1 != row2, (col1, col2)) solutions = problem.getSolutions() Magic squares ------------- And here is an example solving a 4x4 magic square:: problem = Problem() problem.addVariables(range(0, 16), range(1, 16+1)) problem.addConstraint(AllDifferentConstraint(), range(0, 16)) problem.addConstraint(ExactSumConstraint(34), [0,5,10,15]) problem.addConstraint(ExactSumConstraint(34), [3,6,9,12]) for row in range(4): problem.addConstraint(ExactSumConstraint(34), [row*4+i for i in range(4)]) for col in range(4): problem.addConstraint(ExactSumConstraint(34), [col+4*i for i in range(4)]) solutions = problem.getSolutions() -------- Features -------- The following solvers are available: - Backtracking solver - Recursive backtracking solver - Minimum conflicts solver Predefined constraint types currently available: - FunctionConstraint - AllDifferentConstraint - AllEqualConstraint - ExactSumConstraint - MaxSumConstraint - MinSumConstraint - InSetConstraint - NotInSetConstraint - SomeInSetConstraint - SomeNotInSetConstraint ------------- Documentation ------------- There's documentation for the module at: - http://codespeak.net/~niemeyer/constraint/doc/ -------- Download -------- **python-constraint** may be found at the following address: - http://codespeak.net/~niemeyer/constraint/files/ --------------------- Subversion repository --------------------- Available at: - http://codespeak.net/svn/user/niemeyer/constraint/ -- Gustavo Niemeyer http://niemeyer.net

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Myghty 0.98 Released
by mike bayer July 6, 2005

July 6, 2005

Myghty 0.98 Released Myghty is a Python Server Page templating framework and view-controller paradigm designed for large-scale, high availability websites and applications. Its conceptual design and template syntax is derived from HTML::Mason, the most widely used web application platform in the mod_perl world. Since its original release, Myghty has introduced many new concepts and features not found in Mason, and in less than a year is already being used on a handful of commercial and personal websites. It receives favorable reviews for its ease of use, small footprint, quick and smooth operation, and great flexibility. Version 0.98 introduces a new and more flexible style of developing module- based component objects called "implicit module components", as well as new URI resolution paradigms, a new tag <%closure> for defining local functions, a new "dynamic" option for component arguments, improved text escaping, and a cleaner and more consistent dynamic-module loading system. Myghty is released under the GNU Lesser General Public License (LGPL). Documentation, examples and download links can be found at: http://www.myghty.org Michael Bayer mike(a)myghty.org <P><A HREF="http://www.myghty.org">Myghty 0.98</A> - A high performance Python Server Page templating framework derived from HTML::Mason. (06-Jul-05)

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ANN: PyOpenOffice 0.403 released
by Simon July 6, 2005

July 6, 2005

Version 0.403 with some important bugfixes for: * Usage with other XSLT processors than libxslt/xsltproc * Serial letter many file output * command line usage. The old, more simple PDF generation without XSLT is still included! ################### PyOpenOffice 0.4 - The Document Tool The Usability of OpenOffice.org meeting the Power of XML Reporting Technologies - without installing OOo on your server What is PyOpenOffice? * It is an XML based reporting tool, using OpenOffice.org as an easy to use template generator * It is a class library, written in the Python Language. * It is a platform-independent command-line utility (most abilities of the commandline interface are still missing) What can PyOpenOffice do for you? Here some examples: * Make serial letters, lists and reports from templates in the SXW-Format and store them anew as SXW-Files * Replace pictures - generate catalogues, worksheets, photo galleries etc. from an SXW-Template. * Extract the pure text information from the SXW-Document and store it in a plain text file or a PDF-File * Transform SXW-Files to PDF-Files without installing OO - for example on a webserver * Use OOo as template generator and transform SXW files to RML (Report Markup Language) files * Make serial letters, lists and reports from templates in the RML format and transform them to PDF / HTML * Replace pictures - generate catalogues, worksheets, photo galleries etc. from an RML template and transform them to PDF / HTML ################### Have a look at: http://www.bezirksreiter.de/PyOpenOffice.htm Martin Simon

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ANN: PyWeather v0.6.0
by Christopher Blunck July 5, 2005

July 5, 2005

PyWeather v0.5.0 ---------------- PyWeather is a collection of weather related modules that are tested to work. These modules are capable of performing conversion calculations for many common meteorological units. Additionally, modules exist that can read weather data from weather consoles. See the following URL for more details: http://oss.wxnet.org/pyweather -c -- WeatherNet Observations for station: home Temperature: 72.30F Pressure: 29.77in; Dew Point: 69.82F (92%) Wind: 137 at 0 mph Recorded: 23:09:59 07/05/05 (http://wsdl.wxnet.org/home/binding.wsdl)

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ANN: PyTester v0.6.0
by Christopher Blunck July 5, 2005

July 5, 2005

PyTest v0.6.0 ------------- This is a small package that facilitates the unit testing process by aggregating PyUnit tests and making them easier to call from the command line and from within other unit tests. Typical PyUnit tests are written in a 1-1 relationship with the module they test. Module "foo.py" is typically tested with module "test_foo.py". In packages with multiple modules it can become cumbersome to run all of the unit tests from the command line. One could write an aggregator "test_all.py" module and have it call into each "test_*.py" module to retrieve a TestCase to assemble a suite. However, that approach requires 2 modifications each time a unit test is added (one modification for the test itself, and one modification in test_all.py). PyTest can run all of the unit tests in a directory via the command line by locating all modules that begin with "test_". Reflection is then used to extract the TestCase class, and a suite is constructed reflecting all test cases. Additionally, PyTest can be used programmatically in a test_all.py. Please see my site for more info: http://oss.wxnet.org/pytester -c -- WeatherNet Observations for station: home Temperature: 73.20F Pressure: 29.80in; Dew Point: 70.71F (92%) Wind: 137 at 0 mph Recorded: 22:39:52 07/05/05 (http://wsdl.wxnet.org/home/binding.wsdl)

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ANN: BAOW 1.1 Released
by Du Wenshan July 5, 2005

July 5, 2005

BAOW is a lightweight content manage system based on python language and SQL database, help you to develop complex web applications. = Highlights = * BBS or forum system, like phpBB. * Documents manage. * News manage. * Private messages. * with some Wiki or Blog features. * use MoinMoin Wiki marks to edit your contents * Unicode (utf-8) support * International support * built in HTML widget, like GTK * easy to extend and maintain. * user manage and role check and manage. = Homepage and Demo Site = * home page: http://www.baow.org * demo site: http://demo.baow.org = Download = source: http://down.baow.org/baow-1.1.tgz = Install = http://www.baow.org/topic/show/6 = Forums = http://www.baow.org/bbs/cat/main = License = GNU General Public License (GPL) = Author = Du Wenshan duws(a)baow.org Enjoys!

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Dr. Dobb's Python-URL! - weekly Python news and links (Jul 5)
by Simon Brunning July 5, 2005

July 5, 2005

QOTW: "That's what I love in that news group. Someone comes with a stupid and arrogant question, and someone else answers in a calm and reasonable way." - Gustavo Niemeyer "After 25 years doing this, I've become something of a Luddite as far as fancy IDEs and non-standard features go... and a huge believer in strict decoupling between my tools, to the point of ignoring things that bundle them together in ways that are, in my opinion, too tight." - Peter Hansen Ralf Grosse-Kunstleve floats a proposal to reduce the amount of code requires to set instance fields from arguments in __init__ methods: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/7… The Python Software Foundation Summer of Code projects have been selected: http://www.amk.ca/diary/archives/003975.html A discussion about the long-term plan to remove map, filter, reduce and lambda starts out bad-tempered then ... improves little: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/c… There's a new wxPython tutorial at Dev Shed: http://www.devshed.com/c/a/Python/A-Look-at-wxPython/ Peter Hansen wants to determine the wall-clock elapsed time taken by a process on a managed host in a reliable, cross-platform way: http://groups-beta.google.com/group/comp.lang.python/browse_thread/thread/c… Par Nicolas Lehuen uses Python to compare Microsoft Word documents stored in a Subversion repository (!): http://www.lehuen.com/nicolas/index.php/2005/06/30/60-comparing-microsoft-w… Terry Hancock explains what ZOPE actually is: http://groups-beta.google.com/group/comp.lang.python/msg/174d4101e0e419e8 ======================================================================== 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/ 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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ANN: entuils 0.2
by Christof July 3, 2005

July 3, 2005

Some basic helper functions to deal with encodings of files retrieved via HTTP. Download from http://cthedot.de/encutils/ Changes in 0.2: Mainly some documentation and internal name changes, some parameter names have changed as well. Currently contained functions: encodingByMediaType(media_type, log=None) Returns a default encoding for the given Media-Type, e.g. 'utf-8' for 'application/xml'. getHTTPInfo(httpheaders, log=None) Returns (media_type, encoding) information from the Content-Type HTTP header from a HTTP header dictionary. May be (None, None) e.g. if no Content-Type header is available. XML documents have (RFC3023) a default encoding for various media-types if no explicit charset information is given, which may be "ascii" or "utf-8", see "encodingByMediaType". HTML documents have no default encoding. getMetaInfo(text, log=None) Returns (media_type, encoding) information from (last) X/HTML Content-Type meta element. guessEncoding(httpheaders, text, log=None) Tries to find encoding of given text and uses information in httpheaders and textcontent like HTML meta elements or the XML declaration (this is not implemented yet). Returns the explicit or implicit encoding or None. Mismatch reports are written to the log. If there is a similar thing out please let me know (I know the Cookbook XML autodetection script which I'd like to integrate in a future version). And I would very much appreciate any feedback about spec compliance, errors or other problems with the functions too. (Please use http://cthedot.de/blog/?p=11 or http://cthedot.de/contact/?subject1=encutils). Thanks a lot! chris

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Pfem v0.9
by Marc Poinot July 1, 2005

July 1, 2005

Pfem v0.9 is an update of Pfem v0.8 developped by Jonah Lee, Xianggang Zhang, Doug Goering from Department of Mechanical Engineering University of Alaska Fairbanks, Fairbanks, AK, 99775-5905, U.S.A. Pfem is... A Python-based finite element program licensed uder GPL. Current capabilities are quite limited including 2-D and 3-D heat transfer with phase change. Not all elements work with all features (to be addressed shortly). The elasticity portion still needs to be synchronized with the latest version (not quite working with the new version). Input data file is in the format of ABAQUS. The Pfem v0.9 is only an update to Python v2.3 and a new setup.py file for Distutils. The source file structure and the module structure has been changed. Some minor changes in the code due to the port to v2.3 The ABAQUS keyword *INCLUDE in config files is now taken into account. This package requires Numeric (hey, good !) The tar file can be found at: http://cgns-python.berlios.de Please send maintenance related issues, patches, etc... to the mailing list cgns-python-pfem (at) lists.berlios.de -MP- ----------------------------------------------------------------------- Marc POINOT Alias: marcvs Email: poinot(a)onera.fr ONERA -MFE/DSNA/ELSA Tel: 01.46.73.42.84 Info: elsa-info(a)onera.fr 29, Div. Leclerc Fax: 01.46.73.41.66 Site: 92322 Chatillon FRANCE Project: elsA Web: http://www.onera.fr

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