Python-announce-list November 2005

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61 participants
88 discussions

ANN: rest2web 0.4.0alpha
by Fuzzyman 14 Nov '05

14 Nov '05

rest2web 0.4.0 alpha is now available. http://www.voidspace.org.uk/python/rest2web/ What's New ? ========== See http://www.voidspace.org.uk/python/rest2web/reference/changelog.html#versio… Lots of bugfixes and new features since the 0.3.0 release. Includes a new gallery plugin (which will also function as a standalone HTML gallery generator). http://www.voidspace.org.uk/python/rest2web/reference/gallery.html There is also an experimental windows executable version. The documentation has been greatly improved, including a tutorial which should get anyone up to scratch on the basics very quickly. http://www.voidspace.org.uk/python/rest2web/tutorial.html What is rest2web ============= **rest2web** is a tool for autogenerating wesites, or parts of websites. It's main features are : * Integrated with docutils. * Automatically builds index pages and navigation links (sidebars and {acro;breadcrumbs;Weird name for navigation links ?}). * Embedded code in templates for unlimited expressiveness. * Flexible macro system. * Uses relative links, so sites can be viewed from the filesystem. * Unicode internally - so you don't have to be. {sm;:-p} * Includes features for multiple translations of sites. * Built-in gallery creator plugin. * The basic system is very easy to use. * Lots of powerful (optional) features. The content can be stored as HTML, or in reST format; in which case the HTML will be generated using docutils. **rest2web** inserts each page into a template, and automatically creates index pages for sections, and navigation links.

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Webware for Python 0.9 released
by Christoph Zwerschke 14 Nov '05

14 Nov '05

Webware 0.9 has been released. Webware for Python is a suite of Python packages and tools for developing object-oriented, web-based applications. The suite uses well known design patterns and includes a fast Application Server, Servlets, Python Server Pages (PSP), Object-Relational Mapping, Task Scheduling, Session Management, and many other features. Webware is very modular and easily extended. Webware for Python is well proven and platform-independent. It is compatible with multiple web servers, database servers and operating systems. The new release includes numerous enhancements, additions and bug fixes over the previous release. We can list only a few of them here: * easier installation * improved documentation * improved examples * bug fixes * a built-in HTTP server for immediate "playing", * a debug app server compatible with WingIDE and other debuggers * support for the Kid templating language * support for PostgreSQL * better support for recent versions of Python including properties, the object type and the datetime module Check out the Webware for Python home page at http://w4py.org

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ANN: PySizer 0.1
by Nick Smallbone 14 Nov '05

14 Nov '05

I'd like to announce the first release of PySizer, a memory usage profiler for Python code. PySizer was written as part of Google's Summer of Code. The source, documentation and so on are at http://pysizer.8325.org. The current release is at http://pysizer.8325.org/dist/sizer-0.1.tar.gz. The code is kept in a Subversion repository at http://codespeak.net/svn/user/nick8325/sizer. The idea is to take a snapshot of memory use at some time, and then use the functions of the profiler to find information about it. Features -------- * You can make a snapshot of all reachable objects at a given time, organised as a tree (well, a graph, since there are cycles). * For any given object, you can find out how much space it takes up, what objects it references and so on. With a patched version of Python, you can also find out what stack of function calls created an object, and what objects were created by each stack of calls. * You can collect objects into groups. For example, you can group each object according to the module it appears to come from. Then you can treat each module as a single object. * You can filter objects, find the amount of space used by instances of each type, find objects which appeared from one snapshot to the next, find the biggest objects/types/groups, and so on. Requirements ------------ See http://pysizer.8325.org/INSTALL. The main one is Python 2.4 - I will port it to 2.3 soon. Bugs, suggestions, comments, problems, anything else ---------------------------------------------------- You can contact me at nick.smallbone(a)gmail.com. I would love to know if you find a use for it, too.

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SciPy 0.4.3 released (built against 0.6.1 of scipy_core)
by Travis Oliphant 13 Nov '05

13 Nov '05

Background: Full scipy builds on top of scipy_core to provide many more tools for computational science and engineering. Included are tools for optimization, integration (including ode solvers), signal processing, sparse matrices, complete FFTs, complete linear algebra, statistical functions, input and output routines, interpolation, integration, and many special functions. SciPy 0.4.3 This version is the first release to build on top of the new scipy_core (v 0.6.1). The code is relatively stable, but there may be some lingering bugs from the transition from Numeric. Please report any errors you find. The LICENSE is a BSD style License---the same as scipy_core. More information can be found (some of which is dated) at http://www.scipy.org. The sourceforge site where it can be downloaded is http://sourceforge.net/projects/scipy. <P><A HREF="http://www.scipy.org">SciPy (full) 0.4.3</A> - Extension modules for scipy_core (12-Nov-05)

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SciPy Core (Numeric replacement) version 0.6.1 released
by Travis Oliphant 13 Nov '05

13 Nov '05

Background: Numeric is an add-on Python module that has seen widespread adoption. It enables Python to be used as a Scientific Computing Environment similar to MATLAB or IDL. Numeric was originally written nearly 10 years ago, and while still performing admirably, needed much updating to take advantage of the new features in Python and to remove old warts. SciPy Core 0.6.1 SciPy Core is a new system which builds on the code-base of Numeric, but implements features (such as advanced index-selection, and user-settable error modes). There are over 25 major new feature enhancements. The LICENSE is still a BSD style License---the same as old Numeric. More information can be found at the web-site: http://numeric.scipy.org <P><A HREF="http://numeric.scipy.org">SciPy Core 0.6.1</A> - Replacement for Numeric Python. (12-Nov-05)

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[ANNOUNCE] gmpy 1.0 alpha released
by Alex Martelli 13 Nov '05

13 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: FormEncode 0.3
by Ian Bicking 13 Nov '05

13 Nov '05

I'm pleased to announce FormEncode 0.3. What is it? ----------- FormEncode is a package for form validation and conversion. It also includes modules for parsing, filling, and extracting metadata from HTML forms. It features robust conversion both of incoming and outgoing data, attention paid to helpful error messages, and a wide variety of pre-build validators. It also supports composition of validators, and validating structured data, including nested and repeating form elements. FormEncode is being used in several projects, including Subway, TurboGears, and SQLObject. Where is it? ------------ Website and docs: http://formencode.org Download: http://cheeseshop.python.org/pypi/FormEncode What has changed? ----------------- >From the news file: * Allow errors to be inserted automatically into a form when using ``formencode.htmlfill``, when a ``<form:error>`` tag isn't found for an error. * Added ``if_key_missing`` attribute to ``schema.Schema``, which will fill in any keys that are missing and pass them to the validator. * ``FancyValidator`` has changed, adding ``if_invalid_python`` and ``validate_python`` options (which also apply to all subclasses). Also ``if_empty`` only applies to ``to_python`` conversions. * ``FancyValidator`` now has a ``strip`` option, which if true and if input is a string, will strip whitespace from the string. * Allow chained validators to validate otherwise-invalid forms, if they define a ``validate_partial`` method. The credit card validator does this. * Handle ``FieldStorage`` input (from file uploads); added a ``formencode.fieldstorage`` module to wrap those instances in something a bit nicer. Added ``validators.FieldStorageUploadConverter`` to make this conversion. * Added ``StringBoolean`` converter, which converts strings like ``"true"`` to Python booleans. Bugfixes ~~~~~~~~ * A couple fixes to ``DateConverter``, ``FieldsMatch``, ``StringBoolean``, ``CreditCardValidator``. * Added missing ``Validator.assert_string`` method. * ``formencode.htmlfill_schemabuilder`` handles checkboxes better. * Be a little more careful about how ``Invalid`` exceptions are created (catch some errors sooner). * Improved handling of non-string input in ``htmlfill``. Experiments ~~~~~~~~~~~ * Some experimental work in ``formencode.formgen``. Experimental, I say! * Added an experimental ``formencode.context`` module for dynamically-scoped variables.

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ANN: pynakotheka v1.0
by Iñigo Serna 12 Nov '05

12 Nov '05

Hello out there, I'm really pleased to announce the first public release of Pynakotheka. Pynakotheka is a simple GPL-licensed python script which generates static HTML photo albums to be added to web sites or to be burnt in CDs. It includes some templates and it's easy to create more. It depends on python, CheetahTemplate, EXIF and PIL. Read more and download it from: http://inigo.katxi.org/devel/pynakotheka or http://www.terra.es/personal7/inigoserna/pynakotheka Of course, all comments, suggestions etc. are welcome. Best regards, -- Iñigo Serna <inigoserna(a)terra.es> Katxijasotzaileak

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ANNOUNCE: twill v0.7.4, Web testing language.
by C. Titus Brown 11 Nov '05

11 Nov '05

ANNOUNCING twill v0.7.4. twill is a simple Web scripting language built on top of Python and John J. Lee's 'mechanize'. It's designed for automated testing of Web sites, but it should prove useful for anybody who needs to interact with Web sites (especially those using logins and cookies) on the command line or via a script. twill can also now be used for stress-testing and benchmarking of complex sites via the twill-fork script. twill is a reimplementation of Cory Dodt's PBP. A twill script looks like this: # go to the /. login page go http://slashdot.org/login.pl # fill in the form fv 1 unickname test fv 1 upasswd test submit # ok, there's no such account ;). show error HTML. show --- This is the fifth public release of twill, version 0.7.4. (Tagline: "many bugs fixed, nose-based unit tests now work.") Download directly here: http://darcs.idyll.org/~t/projects/twill-0.7.4.tar.gz Documentation is online at http://www.idyll.org/~t/www-tools/twill.html --- Miscellaneous details: twill is implemented in Python and uses pyparsing and mechanize. In addition to the existing simple command language, twill can easily be extended with Python. twill also provides a fairly simple and well-documented wrapper around mechanize. twill scripts can be recorded with maxq, although scripts may require some hand tweaking at the moment. See the twill documentation for more information. twill does not understand JavaScript, I'm sorry to say. --- Notable bug fixes and features: * better error handling & display; * many, many browsing bugs fixed; * new 'url', 'exit', 'showlinks', 'title', 'config' and 'agent' commands; * 'nose' unit tests and unit-test support infrastructure; c.f. http://www.idyll.org/~t/www-tools/twill.html#unit-testing Thanks go to Tommi Virtanen, James Cameron, sureshvv, William Volkman, and Mike Rovner for patches and bug reports.

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Sydney Python - Thursday November 17
by Alan Green 11 Nov '05

11 Nov '05

The Sydney Python group is having its last meeting for the year next Thursday, November 17. Andy Todd will be regaling us with a preview of his upcoming OSDC presentation, "Building GUI Applications with PythonCard". Usual time and place: Thursday, November 17, 2005 (6:30 PM - 8:30 PM) James Squire Brewhouse 2 The Promenade King St Wharf Sydney, New South Wales If you could send me a note (or click the appropriate radio button on http://upcoming.org/event/39890) in advance, that would be much appreciated. (Just turning up is fine too.) Cheers, Alan.

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Python-announce-list November 2005