Mailman 3 May 2007 - Python-announce-list

PyRTF-0.46 RTF document creation library
by Grant Edwards May 18, 2007

May 18, 2007

I'm making available what I'm calling version 0.46 of the pyRTF library for Rich Text Format document creation. The project's official home is here: http://pyrtf.sourceforge.net/ Here's the "Brief Description" from that web page: PyRTF is a set of python classes that make it possible to produce RTF documents from python programs. The library has no external dependancies and in my own testing has proved reliable and fast. Three examples are included in the release that demonstrate some of the features of the library, I'll be adding to these when I can. PyRTF has been tested on the following OS's; W2K, WinXP, GNU/Linux, OpenBSD, FreeBSD and on the following Word Processors; OpenOffice, Word95, Word97, Word2000, WordXP and MacWord (not sure which version). However, the sourceforge progject appears to be abaondoned (submitted patches have been open and ignored for 2+ years). So, I'm making public a version that's been updated to include: 1) support for EMF graphics objects. [yes, I wrote my own from scratch before I noticed somebody had submitted a patch almost two years ago]. 2) enhanced image scaling for all image types: * scaling by fixed percentage * scaling to fixed width or height (preserving aspect ratio) * scaling to fixed width and height (breaking aspect ratio) 3) create of images by passing file objects in addition to file names to Image() class constructor. You can download the enhanced version from: ftp://ftp.visi.com/users/grante/python/PyRTF-0.46.tar.gz -- Grant Edwards grante Yow! Could I have a drug at overdose? visi.com

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ANN: DBUtils 0.9.3 has been released
by Christoph Zwerschke May 18, 2007

May 18, 2007

DBUtils 0.9.3 has been released. DBUtils is a suite of tools providing solid, persistent and pooled connections to a database that can be used in all kinds of multi-threaded environments such as Webware for Python or other web application servers. The suite supports DB-API 2 compliant database interfaces and the classic PyGreSQL interface. The new version is available for download at: * http://www.python.org/pypi/DBUtils/ and * http://www.w4py.org/downloads/DBUtils/ Changes: * http://www.w4py.org/DBUtils/Docs/RelNotes-0.9.3.html User's Guide available at: * http://www.w4py.org/DBUtils/Docs/UsersGuide.html -- Christoph Zwerschke

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MailingLogger 3.1.0 Released!
by Chris Withers May 17, 2007

May 17, 2007

Hot on the heals of the 3.0.0 release, this 3.1.0 release offers support for SMTP hosts that require authentication in order to send mail... Mailinglogger enables log entries to be emailed either as the entries are logged or as a summary at the end of the running process. This pair of enhanced emailing handlers for the python logging framework is now available as a standard python package and as an egg. The handlers have the following features: - customisable and dynamic subject lines for emails sent - emails sent with an X-Mailer header for easy filtering - flood protection to ensure the number of emails sent is not excessive - fully documented and tested In addition, extra support is provided for configuring the handlers when using ZConfig, Zope 2 or Zope 3. Installation is as easy as: easy_install mailinglogger For more information, please see: http://www.simplistix.co.uk/software/python/mailinglogger cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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ANN: SkipoleMonitor0.2 released
by Bernie May 17, 2007

May 17, 2007

SkipoleMonitor is available at http://code.google.com/p/skipole-monitor/ Version 0.2 now released, this version adds the option to automatically send email alerts should the status of any monitored host change. What is SkipoleMonitor? ================= SkipoleMonitor is a free network monitor for Windows and Linux. On running the program, a GUI window appears, and hosts can be added, which Skipole Monitor will regularly ping, showing the results via a built-in Web server. Hosts can be grouped, so the Web server will show group symbols that the viewer can open to inspect the hosts, or further sub-groups, within. Written in Python, and uses the wxPython library, it has been tested on Windows and Linux. License : GPL ================= Bernard Czenkusz bernie(a)skipole.co.uk

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Python-URL! - weekly Python news and links (May 16)
by Cameron Laird May 16, 2007

May 16, 2007

QOTW: "Sometimes you just have to take the path of least distaste". - Grant Edwards "I want to choose my words carefully here, so I'm not misunderstood. They're a bunch of fucking idiots." - Charles Wang, billionaire chairman of software giant Computer Associates, asked to assess the quality of Gartner's researchers Even if you can't make it to the Mountain Zone this week, you deserve to know what great topics turn up in in local interest group sessions: http://lists.community.tummy.com/pipermail/frpythoneers/2007-May/001356.html http://wiki.python.org/moin/LocalUserGroups Formation of identifiers with characters beyond the basic latin codepage is a thorny issue: http://groups.google.com/group/comp.lang.python/browse_thread/thread/ebb6bb… While calldll (mostly?) compiles "out of the box", it's time to move to ctypes: http://groups.google.com/group/comp.lang.python/browse_thread/thread/49c376… Well-styled object orientation involves more than just inheritance--delegation, for example: http://groups.google.com/group/comp.lang.python/msg/7bdd844a547d0f11 ======================================================================== 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, Planet Python indexes much of the universe of Pybloggers. http://www.planetpython.org/ The Python Papers aims to publish "the efforts of Python enthusiats". http://pythonpapers.org/ Readers have recommended the "Planet" sites: http://planetpython.org http://planet.python.org 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 Python411 indexes "podcasts ... to help people learn Python ..." Updates appear more-than-weekly: http://www.awaretek.com/python/index.html Steve Bethard continues the marvelous tradition early borne by Andrew Kuchling, Michael Hudson, Brett Cannon, Tony Meyer, and Tim Lesher 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 Although unmaintained since 2002, the Cetus collection of Python hyperlinks retains a few gems. 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 Many Python conferences around the world are in preparation. Watch this space for links to them. 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://www.python.org/dev/peps/pep-0042/ 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/topic/python/ (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… There is *not* an RSS for "Python-URL!"--at least not yet. Arguments for and against are occasionally entertained. 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!". Write to the same address to unsubscribe. -- The Python-URL! Team-- Phaseit, Inc. (http://phaseit.net) is pleased to participate in and sponsor the "Python-URL!" project. Watch this space for upcoming news about posting archives.

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[ANN] PyTesser: Optical Character Recognition (v0.0.1)
by Michael J.T. O'Kelly May 16, 2007

May 16, 2007

PyTesser version 0.0.1 is available at http://code.google.com/p/pytesser/ What is PyTesser? ============== PyTesser is an Optical Character Recognition module for Python. It takes as input an image or image file containing text and outputs a string. PyTesser uses the Tesseract OCR engine (an Open Source project at Google), converting images to an accepted format and calling the Tesseract executable as an external script. A Windows executable is provided along with the Python scripts. The scripts should work in other operating systems as well. Usage ========= >>> from pytesser import * >>> image = Image.open('fnord.tif') # Open image object using PIL >>> print image_to_string(image) # Run tesseract executable on image fnord >>> print image_file_to_string('fnord.tif') fnord License =========== PyTesser is released under the Apache License 2.0. =========== Michael J.T. O'Kelly <mokelly(a)mit.edu> http://mjtokelly.blogspot.com/ <P><A HREF="http://code.google.com/p/pytesser/">PyTesser v0.0.1</A> - PyTesser is an Optical Character Recognition module for Python using the Tesseract OCR engine. (15-May-07)

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ANN: wxPython 2.8.4.0
by Robin Dunn May 15, 2007

May 15, 2007

Announcing ---------- The 2.8.4.0 release of wxPython is now available for download at http://wxpython.org/download.php. This release includes a number of bug fixes, updates to some contribs and other improvements. Source code is available, as well as binaries for both Python 2.4 and 2.5, for Windows and Mac, as well some pacakges for various Linux distributions. A summary of changes is listed below and also at http://wxpython.org/recentchanges.php. 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 GTK2, and Mac OS X 10.3+, in most cases the native widgets are used on each platform to provide a 100% native look and feel for the application. Changes in 2.8.4.0 ------------------ wxGTK: Make wx.NO_BORDER style work with wx.RadioBox (patch 1525406) Update to 1.0 of TreeMixin. wx.lib.customtreectrl: Patch from Andrea that fixes the following problems/issues: * ZeroDivisionError when using the Vista selection style and calling SelectItem; for some strange reason, sometimes the item rect is not initialized and that generates the ZeroDivisionError when painting the selection rectangle; * Added a DeleteWindow method to GenericTreeItem class, for items that hold a widget next to them; * Renamed CustomTreeCtrl method IsEnabled to IsItemEnabled, otherwise it conflicts with wx.Window.IsEnabled; * Now CustomTreeCtrl behaves correctly when the widget attached to an item is narrower (in height) than the item text; wx.lib.flatnotebook: Patch from Andrea that implements the following: * A new style FNB_FF2: my intentions were to make it like Firefox 2, however it turned out to be an hybrid between wxAUI notebook glose style & FF2 ...I still think it looks OK. The main purpose for making it more like wxAUI is to allow applications that uses both to have same look and feel (or as close as it can get...); * Changed the behavior of the left/right rotation arrows to rotate single tab at a time and not bulk of tabs; * Updated the demo module. XRCed now uses a wx.FileHistory object for managing the recent files menu. wx.DateSpan and wx.TimeSpan now use lower case property names in order to not conflict with the same named static methods that already existed. wx.aui.PyAuiDocArt and wx.aui.PyAuiTabArt can now be derived from in wxPython and plugged in to wx.AUI. XRCed has a new experimental feature to add controls by draging icons from the tool palette to the test window. Mouse position is tracked to highlight the future parent of the new item. Updates to MaskedEdit controls from Will Sadkin: maskededit.py: Added parameter option stopFieldChangeIfInvalid, which can be used to relax the validation rules for a control, but make best efforts to stop navigation out of that field should its current value be invalid. Note: this does not prevent the value from remaining invalid if focus for the control is lost, via mousing etc. numctrl.py, demo / MaskedNumCtrl.py: In response to user request, added limitOnFieldChange feature, so that out-of-bounds values can be temporarily added to the control, but should navigation be attempted out of an invalid field, it will not navigate, and if focus is lost on a control so limited with an invalid value, it will change the value to the nearest bound. combobox.py: Added handler for EVT_COMBOBOX to address apparently inconsistent behavior of control when the dropdown control is used to do a selection. textctrl.py Added support for ChangeValue() function, similar to that of the base control, added in wxPython 2.7.1.1. Update to latest FloatCanvas from Chris Barker. The pywxrc tool now properly supports generating classes for menus and menubars, and also creating attributes for menus, menubars and menu items. -- Robin Dunn Software Craftsman http://wxPython.org Java give you jitters? Relax with wxPython!

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ctypes-1.0.2 for 64-bit Windows
by Thomas Heller May 15, 2007

May 15, 2007

For the brave enough to run a 64-bit Python under a 64-bit Windows installation, I have added a first version of ctypes for win64 in the sourceforge download area. It does NOT use the same sourcecode as the 'official' version, the code has been patched by merging selected commits from the Python SVN trunk. This release is not too much tested; in fact even one unittest still fails. The failure only occurs when compiled for Python 2.5 with the MS SDK compiler, not with Visual Studio 2008. If you try to use ctypes-win64, be sure to use the proper argtypes and restypes attributes for dll-functions; integers (which ctypes assumes by default) and pointers have different sizes on 64-bit Windows. Apart from that, enjoy. Thomas

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ANN: ctypes 1.0.2 released
by Thomas Heller May 15, 2007

May 15, 2007

ctypes 1.0.2 released - May 15, 2007 ==================================== Overview ctypes is an advanced ffi (Foreign Function Interface) package for Python 2.3 and higher. ctypes allows to call functions exposed from dlls/shared libraries and has extensive facilities to create, access and manipulate simple and complicated C data types in Python - in other words: wrap libraries in pure Python. It is even possible to implement C callback functions in pure Python. ctypes runs on Windows, Windows CE, MacOS X, Linux, Solaris, FreeBSD, OpenBSD. It may also run on other systems, provided that libffi supports this platform. Changes in 1.0.2 This is exactly the same version that is distibuted with Python 2.5.1; made available as add-on package for Python 2.3 and Python 2.4. No new features, only bugfixes have been applied: The version number of the ctypes package was changed to "1.0.2". Bug #1563807: _ctypes built on AIX fails with ld ffi error. Bug #1598620: A ctypes Structure cannot contain itself. Patch #1560695: Add .note.GNU-stack to ctypes' sysv.S so that ctypes isn't considered as requiring executable stacks. Bug #1651235: When a tuple was passed to a ctypes function call, Python would crash instead of raising an error. Fix bug #1646630: ctypes.string_at(buf, 0) and ctypes.wstring_at(buf, 0) returned string up to the first NUL character. Bug #1610795: ctypes.util.find_library works now on BSD systems. ctypes callback functions only support 'fundamental' data types as result type. Raise an error when something else is used. This is a partial fix for Bug #1574584. Changes in 1.0.1 If the Python part of a ctypes callback function returns None, and this cannot be converted to the required C type, an exception is printed with PyErr_WriteUnraisable. Before this change, the C callback returned arbitrary values to the calling code. The __repr__ method of a NULL ctypes.py_object() no longer raises an exception. This release contains exactly the same code as the ctypes package included in Python 2.5. Changes in 1.0.0 Better support for comtypes. More target platforms for OpenBSD. Several small bugfixes. This is exactly the same version as included in Python 2.5b3. Download Downloads are available in the sourceforge files section <http://sourceforge.net/project/showfiles.php?group_id=71702> Binary windows installers, which contain compiled extension modules, are also available, be sure to download the correct one for the Python version you are using. Homepage <http://starship.python.net/crew/theller/ctypes/> Enjoy, Thomas

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Pydev 1.3.3 Released
by Fabio Zadrozny May 15, 2007

May 15, 2007

Hi All, Pydev and Pydev Extensions 1.3.3 have been released Details on Pydev Extensions: http://www.fabioz.com/pydev Details on Pydev: http://pydev.sf.net Details on its development: http://pydev.blogspot.com Release Highlights in Pydev Extensions: ----------------------------------------------------------------- * Quick-fix: When an import is added from the auto-import quick-fix, a code-analysis is requested right after it. * Minor bugs fixed. Release Highlights in Pydev: ---------------------------------------------- * Performance: Optimizations in the code-completion structure. * Debugger: Performance improvements (it will only actually trace contexts that have breakpoints -- it was doing that in a module context before). * Debugger: Step over correctly stops at the previous context. * Debugger: Breakpoint labels correct when class/function name changes. * Quick-Fix: Move import to global scope would not be correct if the last line was a multi-line import. * Outline: Syntax errors will show in the outline. * Outline: Selection on import nodes is now correct. * Outline: Link with editor created. * Outline: Show in outline added to the pydev perspective. * Find Previous Problem: action created (Ctrl+Shift+.). * Extract method refactoring: end line delimiters are gotten according to the document (it was previously fixed to \n). * Extension-points: Documentation added for some of the extension points available. * Perspective: The pydev package explorer has been set as the preferred browser in the pydev perspective. What is PyDev? --------------------------- PyDev is a plugin that enables users to use Eclipse for Python and Jython development -- making Eclipse a first class Python IDE -- It comes with many goodies such as code completion, syntax highlighting, syntax analysis, refactor, debug and many others. Cheers, -- Fabio Zadrozny ------------------------------------------------------ Software Developer ESSS - Engineering Simulation and Scientific Software http://www.esss.com.br Pydev Extensions http://www.fabioz.com/pydev Pydev - Python Development Enviroment for Eclipse http://pydev.sf.net http://pydev.blogspot.com

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