Mailman 3 December 2006 - Python-announce-list

itools 0.15.0 released
by "J. David Ibáñez" Dec. 20, 2006

Dec. 20, 2006

itools is a Python library, it groups a number of packages into a single meta-package for easier development and deployment: itools.catalog itools.http itools.uri itools.cms itools.i18n itools.vfs itools.csv itools.ical itools.web itools.datatypes itools.rss itools.workflow itools.gettext itools.schemas itools.xhtml itools.handlers itools.stl itools.xliff itools.html itools.tmx itools.xml The template language STL has seen the most important change since its inception. A new method for variable substitution has been implemented, it replaces "stl:attributes" and "stl:content". To illustrate this change, while before we wrote: <a stl:attributes="href object_uri" stl:content="object_title" /> Now we will write: <a href="${object_uri}">${object_title}</a> This new approach produces more compact and readable templates. It will also make easier to build some user interfaces. And will help translators since the messages extracted from the templates will be more easy to read. This release is also the first to include some C code. We have rewritten the XML parser ("itools.xml.parser") in C for performance. The programming interface is mostly the same (see the UGRADE.txt file for the incompatible changes). For those who wonder... Why yet-another-xml-parser? Because its programming interface is much much simpler (that means better) than the parsers based in back-calls. See the itools documentation to know more [1]. The other big changes in this release are in "itools.cms", one is for disk usage, the other is functional. The code that implements transactions has been rewritten. From a brute force technique we have moved to a refined one that takes advantage of the extensibility of the "itools.vfs" layer. The visibile change is that we don't need anymore a backup database, so the size of an instance has been reduced to (almost) the half. The functional change has to do with user management. Now we use the email address to identify users, instead of a username. The user must confirm the registration sending an email, this way the application can be certain the email address is valid. There have been also some smaller improvements to the programming interface of other packages, most notably "itools.vfs", "itools.catalog", "itools.web" and "itools.cms". See the file UPGRADE.txt file for the incompatible changes. [1] http://download.ikaaro.org/doc/itools/itools.html Credits: - Hervé Cauwelier wrote the new database code and made other important changes in "itools.cms" (metadata stored roles); - J. David Ibáñez did almost everything else; - Norman Khine helped testing. Resources --------- Download http://download.ikaaro.org/itools/itools-0.15.0.tar.gz Home http://www.ikaaro.org/itools Mailing list http://mail.ikaaro.org/mailman/listinfo/itools Bug Tracker http://bugs.ikaaro.org/ -- J. David Ibáñez Itaapy <http://www.itaapy.com> Tel +33 (0)1 42 23 67 45 9 rue Darwin, 75018 Paris Fax +33 (0)1 53 28 27 88

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[ANN] PyInstaller 1.3 released
by Giovanni Bajo Dec. 20, 2006

Dec. 20, 2006

Hello, PyInstaller 1.3 is out! Grab latest version at: http://pyinstaller.python-hosting.com/ Description ----------- PyInstaller is a program that converts (packages) Python programs into stand-alone executables, under Windows, Linux and Irix. Its main advantages over similar tools are that PyInstaller works with any version of Python since 1.5, it builds smaller executables thanks to transparent compression, it is multi-platform (so you can build one-file binaries also under Linux), and use the OS support to load the dynamic libraries, thus ensuring full compatibility. Features -------- * Packaging of Python programs into standard executables, that work on computers without Python installed. * Multiplatform: works under Windows, Linux and Irix. (Mac port in development. See /branches/mac on SVN) * Multiversion: works under any version of Python since 1.5. * Dual packaging mode: o Single directory: build a directory containing an executable plus all the external binary modules (.dll, .pyd, .so) used by the program. o Single file: build a single executable file, totally self-contained, which runs without any external dependency. * Support for automatic binary packing through the well-known UPX compressor. * Optional console mode (see standard output and standard error at runtime). * Selectable executable icon (Windows only). * Fully configurable version resource section in executable (Windows only). * Support for building COM servers (Windows only). ChangeLog --------- + Fix bug with user-provided icons disappearing from built executables when these were compressed with UPX. + Fix problems with packaging of applications using PIL (that was broken because of a bug in Python's import machinery, in recent Python versions). Also add a workaround including Tcl/Tk with PIL unless ImageTk is imported. + (Windows) When used under Windows XP, packaged programs now have the correct look & feel and follow user's themes (thanks to the manifest file being linked within the generated executable). This is especially useful for applications using wxPython. + Fix a buffer overrun in the bootloader (which could lead to a crash) when the built executable is run from within a deep directory (more than 70-80 characters in the pathname). * Bootstrap modules are now compressed in the executable (so that they are not visible in plaintext by just looking at it with a hex editor). * Fixed a regression introduced in 1.1: under Linux, the bootloader does not depend on libpythonX.X.so anymore. We've moved ----------- PyInstaller has a new home: http://pyinstaller.python-hosting.com/ (thanks to the guys at webfaction.com for top-notch free hosting!) We also own a domain name (http://pyinstaller.org) which can be used as a permanent redirector to our home. The mailing list moved as well, it's now at http://groups.google.com/group/PyInstaller. Join us for discussion! -- Giovanni Bajo

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IPython 0.7.3 upgrade notes
by Ville Vainio Dec. 20, 2006

Dec. 20, 2006

Something I forgot to emphasize in the announcement, knowing that not everyone reads the release notes - if you are upgrading from a previous version of IPython, you must either: - Delete your ~/ipython (or ~/_ipython) directory OR - Run %upgrade once IPython starts.

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IPython 0.7.3 is out
by Ville Vainio Dec. 20, 2006

Dec. 20, 2006

Hi all, The IPython team is happy to release version 0.7.3, with a lot of new enhancements, as well as many bug fixes (including full Python 2.5 support). We hope you all enjoy it, and please report any problems as usual. 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. 4. A shell for interactive usage of threaded graphical toolkits. IPython has support for interactive, non-blocking control of GTK, Qt and WX applications via special threading flags. The normal Python shell can only do this for Tkinter applications. Where to get it --------------- IPython's homepage is at: http://ipython.scipy.org and downloads are at: http://ipython.scipy.org/dist We've provided: - Source download (.tar.gz) - A Python Egg (http://peak.telecommunity.com/DevCenter/PythonEggs). - A native win32 installer. We note that IPython is now officially part of most major Linux and BSD distributions, so packages for this version should be coming soon, as the respective maintainers have the time to follow their packaging procedures. Many thanks to Jack Moffit, Norbert Tretkowski, Andrea Riciputi, Dryice Liu and Will Maier for the packaging work, which helps users get IPython more conveniently. Many thanks to Enthought for their continued hosting support for IPython. Release notes ------------- See http://projects.scipy.org/ipython/ipython/wiki/Release/0.7.3/Features for notable new features in this release. Enjoy, and as usual please report any problems. The IPython team.

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ANN: pep8.py 0.2.0 - Python style guide checker
by Johann C. Rocholl Dec. 20, 2006

Dec. 20, 2006

Announcing the first public release of pep8.py, a tool to check your Python code against some of the style conventions in `PEP 8`_. .. _PEP 8: http://www.python.org/dev/peps/pep-0008/ Features -------- * Plugin architecture: Adding new checks is easy. * Parseable output: Jump to error location in your editor. * Small: Just one Python file, requires only stdlib. Download -------- The file pep8.py (and a regression test suite) is available from the Browsershots subversion repository, under the Expat license: http://svn.browsershots.org/trunk/devtools/pep8/ You can look at the source code and change history online: http://trac.browsershots.org/browser/trunk/devtools/pep8/pep8.py Example usage and output ------------------------ :: $ pep8.py optparse.py optparse.py:69:11: E401 multiple imports on one line optparse.py:77:1: E302 expected 2 blank lines, found 1 optparse.py:88:5: E301 expected 1 blank line, found 0 optparse.py:222:34: W602 deprecated form of raising exception optparse.py:347:31: E211 whitespace before '(' optparse.py:357:17: E201 whitespace after '{' optparse.py:472:29: E221 multiple spaces before operator optparse.py:544:21: W601 .has_key() is deprecated, use 'in' You can also make pep8.py show the source code for each error, and even the relevant text from PEP 8:: $ pep8.py --show-source --show-pep8 testsuite/E111.py testsuite/E111.py:2:3: E111 indentation is not a multiple of four print x ^ Use 4 spaces per indentation level. For really old code that you don't want to mess up, you can continue to use 8-space tabs. Or you can display how often each error was found:: $ pep8.py --statistics -qq --filename=*.py Python-2.5/Lib 232 E201 whitespace after '[' 599 E202 whitespace before ')' 631 E203 whitespace before ',' 842 E211 whitespace before '(' 2531 E221 multiple spaces before operator 4473 E301 expected 1 blank line, found 0 4006 E302 expected 2 blank lines, found 1 165 E303 too many blank lines (4) 325 E401 multiple imports on one line 3615 E501 line too long (82 characters) 612 W601 .has_key() is deprecated, use 'in' 1188 W602 deprecated form of raising exception Quick help is available on the command line:: $ pep8.py -h usage: pep8.py [options] input ... options: -h, --help show this help message and exit -v, --verbose print status messages, or debug with -vv -q, --quiet report only file names, or nothing with -qq --exclude=patterns skip matches (default .svn,CVS,*.pyc,*.pyo) --filename=patterns only check matching files (e.g. *.py) --ignore=errors skip errors and warnings (e.g. E4,W) --repeat show all occurrences of the same error --show-source show source code for each error --show-pep8 show text of PEP 8 for each error --statistics count errors and warnings --benchmark measure processing speed --testsuite=dir run regression tests from dir --doctest run doctest on myself Feedback -------- Your feedback is more than welcome. Write email to johann(a)browsershots.org or post bugs and feature requests here: http://trac.browsershots.org/newticket?component=devtools

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Construct 2.00 (RC1) released
by sebulba Dec. 19, 2006

Dec. 19, 2006

http://pyconstruct.wikispaces.com Construct is a library for parsing and building (AKA packing and unpacking) of data structures such as in-memory structures, file formats, or network protocols. Unlike other libraries, Construct is _declarative_, meaning you define the data structure, and not the code that parses/builds it. As a result, constructs can do both parsing and building, with no extra code. The library comes with many built-in primitives, and a large inventory of protocols and file formats. A full tutorial can be found on the site. Note: the docs are work-in-progress until the final 2.0 release will be made in the next two weeks. If you wish to get a quick taste of the library, consider the following snippet: >>> from construct import * >>> >>> >>> ethernet_header = Struct("ethernet_header", ... Bytes("dest", 6), ... Bytes("source", 6), ... Enum(UBInt16("type"), ... IP = 0x0800, ... ARP = 0x0806, ... X25 = 0x0805 ... ) ... ) >>> >>> >>> print ethernet_header.parse("ABCDEF123456\x08\x00") Container: dest = 'ABCDEF' source = '123456' type = 'IP' >>> >>> >>> ethernet_header.build(Container(dest = "aaabbb", source = "333444", type = "X25")) 'aaabbb333444\x08\x05' -tomer

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[ANN]: 'twander' 3.210 Released And Available
by Tim Daneliuk Dec. 19, 2006

Dec. 19, 2006

(Apologies for two releases in less than a week. It was, um... necessary. This should be it for quite a while barring any notable bug reports.) 'twander' Version 3.210 is now released and available for download at: http://www.tundraware.com/Software/twander The last public release was 3.204. If you are unfamiliar with this pure-Python program, see the end of this message for a brief description or see the website above. --------------------------------------------------------------------- NEW FEATURES - Implemented Association exclusions. You can now exclude the named file types from being associated with an application: ASSOC ! *.txt *.ps *.pdf This is handy if you want to use a default association for most things, but have a select group of files not be affected by the default and thereby passed down to the OS for normal processing. - Any association (normal, default, exclusion) can be removed by leaving the right-hand-side blank: ASSOC *.foo ASSOC * ASSOC ! This is useful within conditional blocks when you want to define 'twander' behavior differently based on some condition you're checking. Another use is to undefine an Association that was put in place in a global configuration you .included into your setup. CHANGES - All association checks are now case-insensitive under Windows. - Association "types" now support filename "globbing" meta- characters. This means that association statements supported in the previous release need to be changed slightly. This: ASSOC .txt ... Need to be changed to this: ASSOC *.txt .... This feature enables far more complete filename type specification than was previously possible with just the "filename ends with .." semantic. - If a file is selected and the user double-clicks or hits "Enter", and that file is not executable AND has no applicable association defined, 'twander' will present an error message. It does this only on the Unix-like systems. On Windows, the request is handed down to the underlying OS without comment because Windows itself may have an applicable association. DOCUMENTATION - The manual has been updated and corrected in several places. - Documentation for the new features has been added. ------------------------------------------------------------------------ Complete details of all fixes, changes, and new features can be found in the WHATSNEW.txt and documentation files included in the distribution. Users are strongly encouraged to join the twander-users mailing list as described in the documentation. A FreeBSD port has been submitted as well. What Is 'twander'? ------------------ 'twander' is a macro-programmable Filesystem Browser that runs on both Unix-like systems as well as Win32 systems. It embraces the best ideas of both similar GUI-driven programs (Konqueror, Windows Explorer) as well as text-based interfaces (Midnight Commander, List, Sweep). Or, If You Prefer The "Elevator Pitch" -------------------------------------- 'twander' is: - A better file browser for Unix and Win32. (Tested on FreeBSD, Linux, Win32. Probably works on Mac OS/X, but not tested.) - A way to make browsing the same on all the OSs you use. - A macro-programmable tool that lets *you* define the features. - A GUI navigation front-end for your shell. - A way to "can" workflows for your technically-challenged colleagues. - A way to free yourself from the shackles of the mouse. - A way to significantly speed up your day-to-day workflow. - A Python/Tkinter application - about 5000 lines of code/comments - A RCT (Really Cool Tool) that will have you addicted in a day or two See the web page for more information, a screen shot, and the complete documentation. twander(a)tundraware.com

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[ANN] rest2web 0.5.1
by Fuzzyman Dec. 19, 2006

Dec. 19, 2006

`rest2web 0.5.1 <http://www.voidspace.org.uk/python/rest2web/>`_ is now available. This is a minor feature enhancement release. * `Download rest2web-0.5.1.zip <http://www.voidspace.org.uk/cgi-bin/voidspace/downman.py?file=rest2web-0.5.…>`_ * `Download rest2web-0.5.1.tar.gz <http://www.voidspace.org.uk/cgi-bin/voidspace/downman.py?file=rest2web-0.5.…>`_ What Is rest2web? ============= Maintaining websites or project documentation in HTML is a pain. **rest2web** takes out the pain, and brings back the joy. {sm;:wink:} **rest2web** is a simple tool that lets you build your website from a single template (or as many as you want), and keep the contents in `ReStructured Text <http://docutils.sourceforge.net/>`_. (You can still keep pages in HTML if needed.) It has an easy to us templating system, with embedded Python for unlimited flexibility and no new templating language to learn. It has built in functions or creating sidebars and navigation elements of a site. What's New in 0.5.1 ? ================ Added some extra debugging info to syntax errors in the templates. Fixed odict and pathutils for Python 2.5 compatibility. Added the 'promote_headers' option to the `config file <http://voidspace.org.uk/python/rest2web/config_file.html>`_. Added the ``sortpages`` method to the ``sections``. This sorts the pages in a section (or all sections) alphabetically. You can also pass in a custom sort function.

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Front Range Pythoneers Meeting: Wed, Dec 20, in Boulder, Colorado
by frpythoneers＠gmail.com Dec. 19, 2006

Dec. 19, 2006

Important Change: we will be meeting at bivio Software instead of Jill's to better accommodate this month's demos. == Meeting: December 20, 2006 == * Time: 6-8 PM * Location: bivio Software, Inc., 28th and Iris. Above Hair Elite in Suite S. * BoulderSprint. Eric Dobbs proposed we adopt Jython, and this looks like we have enough momentum to actually get some useful work done in our upcoming sprints. * Tom Churchill and Vinny will demo Churchill Navigation's earth-rendering engine (which looks like Google Earth, only apparently even better and faster ;) ). Vinny (their main Python guy) will explain how they built the glue logic (and why they decided against SWIG) and perhaps some of the implications of using Python as a scripting language in a real-time (60 fps) environment, and the techniques they employed to keep the graphics pipeline from stalling when making an expensive call into their engine from Python. * Brian Granger from Tech-X will help us think more deeply about concurrent Python programming, especially as seen in a new version of IPython. We will have food & drink available. Did I mention the free beer? Hope to see you there. For more information: http://wiki.python.org/moin/FrontRangePythoneers

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Roundup Issue Tracker release 1.3.2
by Richard Jones Dec. 19, 2006

Dec. 19, 2006

I'm proud to release version 1.3.2 of Roundup. Fixed in 1.3.2: - relax rules for required fields in form_parser.py (sf bug 1599740) - documentation cleanup from Luke Ross (sf patch 1594860) - updated Spanish translation from Ramiro Morales (sf patch 1594718) - handle 8-bit untranslateable messages in tracker templates - handling of required for boolean False and numeric 0 (sf bug 1608200) - removed bogus args attr of ConfigurationError (sf bug 1608056) - implemented start_response in roundup.cgi (sf bug 1604304) - clarified windows service documentation (sf patch 1597713) - HTMLClass fixed to work with new item permissions check (sf bug 1602983) - support POP over SSL (sf patch 1597703) - clean up input field generation and quoting of values (sf bug 1615616) - allow use of roundup-server pidfile without forking (sf bug 1614753) - allow translation of status/priority menu options (sf bug 1613976) New Features in 1.3.0: - WSGI support via roundup.cgi.wsgi_handler 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 2.3 or later for correct operation. To give Roundup a try, just download (see below), unpack and run:: roundup-demo Release info and download page: http://cheeseshop.python.org/pypi/roundup Source and documentation is available at the website: http://roundup.sourceforge.net/ Mailing lists - the place to ask questions: http://sourceforge.net/mail/?group_id=31577 About Roundup ============= 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. Note: Ping is not responsible for this project. The contact for this project is richard(a)users.sourceforge.net. 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 2.3+ 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 five database back-ends (anydbm, sqlite, metakit, mysql and postgresql).

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