Python-announce-list September 2000

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22 participants
30 discussions

Wing IDE beta 2 is released
by John Ehresman 29 Sep '00

29 Sep '00

I'm happy to announce the 2nd beta release of Wing IDE for Python. This release fixes many bugs, introduces several new features, and provides preliminary support for Python 2.0 (beta 1 & 2). A list of the major changes can be found at http://www.wingide.com/wingide/changelog. Highlights include: * Ability to run under Python 2.0 * Better debugger display of C extension values, including NumPy arrays * Better support for printing Python source files * Support for deadkeys on international keyboards * Additional commenting, auto-wrapping, and brace matching features * Support for source files with DOS-style \r\n line endings Wing IDE is an integrated development environment for Python featuring a powerful source code editor, a fast debugger, and a code browser. It is currently available for Intel-based Linux systems and may be obtained, along with a free 30-day evaluation license, from www.wingide.com. We hope that you will give Wing a try and look forward to your feedback! Thanks, John ------------------------------------------------------------------------ Archaeopteryx Software, Inc. Wing IDE for Python www.archaeopteryx.com Take Flight!

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Python Server Pages
by Jon Brisbin 29 Sep '00

29 Sep '00

My new Python ServerPages implementation is available at http://www.jbrisbin.net/PythonServerPages What is it? My PSP implementation is different than almost anything so far in that it currently consists of one single CGI script that can be added to any webserver (though, just tested on Apache) and PSP pages can immediately be created and accessed easily like: http://www.jbrisbin.net/cgi-bin/psp.py/psppage.pyml You can also integrate with existing speeder-uppers like mod_snake, mod_python, etc...and by byte-compiling the "psp.py" file first... If you want, go ahead and put this in your httpd.conf: Action python-serverpages /cgi-bin/psp.py AddHandler python-serverpages .pyml .psp and then call your PSP pages like: http://www.jbrisbin.net/psppage.pyml Basic documentation is on the home page at http://www.jbrisbin.net/PythonServerPages This is designed to be absolutely simple and fast, not just in performance, but in time to integrate and maintain. -- Jon Brisbin www.jbrisbin.net +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Email: mail(a)jbrisbin.net PSP Home: www.jbrisbin.net/PythonServerPages Public PGP key: www.jbrisbin.net/pgpkey.shtml +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

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ANNOUNCE: FXPy-0.99.131 (FOX Extensions for Python)
by Lyle Johnson 29 Sep '00

29 Sep '00

This is an update of FXPy, a Python extension module which provides an interface to the FOX cross-platform GUI library: Home Page: http://home.hiwaay.net/~johnson2/FXPy Download Source: ftp://ftp.cfdrc.com/pub/FOX/FXPy-0.99.131.tar.gz Windows Binaries: ftp://ftp.cfdrc.com/pub/FOX/FXPy-0.99.131-win32.exe ftp://ftp.cfdrc.com/pub/FOX/FXPy-0.99.131-Py16-win32.exe ftp://ftp.cfdrc.com/pub/FOX/FXPy-0.99.131-Py20b2-win32.exe To build FXPy from the sources, you will also need to download version 0.99.131 of the FOX library: FOX Home Page: http://www.cfdrc.com/FOX/fox.html Download Source: ftp://ftp.cfdrc.com/pub/FOX/fox-0.99.131.tar.gz ftp://ftp.cfdrc.com/pub/FOX/fox-0.99.131.zip As you may have guessed by now, the latest release of FXPy is version 0.99.131. What is it? ----------- FXPy is a Python extension module which provides an interface to the FOX cross-platform GUI library. With a few minor exceptions, FXPy provides a complete interface to FOX. FOX is a C++-based toolkit for developing graphical user interfaces easily and effectively. Some of the significant features of FOX include: * A rich set of widgets (including dials, shutters, tree lists, and many other "modern" widgets). * Powerful but easy-to-use layout managers. * Extensive support for 3-D modeling using OpenGL or Mesa. * Supports the XDND protocol for drag-and-drop. * Registry for persistent application settings. * Runs natively under Unix/X and Microsoft Windows. * And much, much more! Please see the FOX home page (URL listed above) for more details about the FOX library's features. Also consider subscribing to the foxgui-users mailing list for the latest news about FOX development; again, see the FOX home page for information on this. FXPy is (c) 1999, 2000 Lyle Johnson (ljohnson(a)resgen.com) and is released under the GNU Lesser General Public License. <P><A HREF="http://home.hiwaay.net/~johnson2/FXPy">FXPy-0.99.131</A> - interface to the FOX cross-platform GUI library. (29-Sep-00)

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ANNOUNCE: The Snack Sound Toolkit v2.0.1
by Kare Sjolander 27 Sep '00

27 Sep '00

This release contains: * Several bug-fixes * Updated demos * Updated documentation How to play a sound file using Snack and Python: s = Sound() s.read('ex1.wav') s.play() The Snack Sound Toolkit is designed to be used with a scripting language. Snack adds commands to play and record audio and supports in-memory sound objects, file based audio, and streaming audio, with background audio processing. It handles fileformats such as WAV, MP3, AU, AIFF, and NIST/Sphere. Snack is extensible, new commands and sound file formats can be added using the Snack C-library. Snack also does sound visualization, e.g. waveforms and spectrograms. The visualization canvas item types update in real-time and can output postscript. Snack works with Tcl8.0 - Tcl8.4 and Python 1.5.2-1.6 Platforms: Linux, Solaris, HP-UX, IRIX, NetBSD, Macintosh, and Windows95/98/NT/2K. Source and Binaries can be downloaded from http://www.speech.kth.se/snack/ Regards, Kare Sjolander kare(a)speech.kth.se

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Python 2.0b2 is released! [URL corrected]
by Jeremy Hylton 27 Sep '00

27 Sep '00

Python 2.0b2 is released. The BeOpen PythonLabs and our cast of SourceForge volunteers have fixed many bugs since the 2.0b1 release three weeks ago. Please go here to pick it up: http://www.pythonlabs.com/products/python2.0/ There's a tarball, a Windows installer, RedHat RPMs, online documentation, and a long list of fixed bugs. The final release of Python 2.0 is expected in early- to mid-October. We would appreciate feedback on the current beta release in order to fix any remaining bugs before the final release. Confirmation of build and test success on less common platforms is also helpful. Python 2.0 has many new features, including the following: - Augmented assignment, e.g. x += 1 - List comprehensions, e.g. [x**2 for x in range(10)] - Extended import statement, e.g. import Module as Name - Extended print statement, e.g. print >> file, "Hello" - Optional collection of cyclical garbage This release fixes many known bugs. The list of open bugs has dropped to 50, and more than 100 bug reports have been resolved since Python 1.6. To report a new bug, use the SourceForge bug tracker http://sourceforge.net/bugs/?func=addbug&group_id=5470 -- Jeremy Hylton <http://www.python.org/~jeremy/>

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Python 2.0b2 is released!
by Jeremy Hylton 27 Sep '00

27 Sep '00

Python 2.0b2 is released. The BeOpen PythonLabs and our cast of SourceForge volunteers have fixed many bugs since the 2.0b1 release three weeks ago. Please go here to pick it up: http://www.pythonlabs.com/tech/python2.0/ There's a tarball, a Windows installer, RedHat RPMs, online documentation, and a long list of fixed bugs. The final release of Python 2.0 is expected in early- to mid-October. We would appreciate feedback on the current beta release in order to fix any remaining bugs before the final release. Confirmation of build and test success on less common platforms is also helpful. Python 2.0 has many new features, including the following: - Augmented assignment, e.g. x += 1 - List comprehensions, e.g. [x**2 for x in range(10)] - Extended import statement, e.g. import Module as Name - Extended print statement, e.g. print >> file, "Hello" - Optional collection of cyclical garbage This release fixes many known bugs. The list of open bugs has dropped to 50, and more than 100 bug reports have been resolved since Python 1.6. To report a new bug, use the SourceForge bug tracker http://sourceforge.net/bugs/?func=addbug&group_id=5470 -- Jeremy Hylton <http://www.python.org/~jeremy/>

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ANNOUNCE: Distutils 0.9.3
by Greg Ward 26 Sep '00

26 Sep '00

Python Distribution Utilities release 0.9.3 September 26, 2000 The Python Distribution Utilities, or Distutils for short, are a collection of modules that aid in the development, distribution, and installation of Python modules and (ultimately) applications. The Distutils are a standard part of Python 2.0; if you are running 2.0 (or one of the 1.6 alpha releases that preceded it), you don't need to install the Distutils separately. This release is primarily so that you can add the Distutils to a Python 1.5.2 installation -- you will then be able to install modules that require the Distutils, or use the Distutils to distribute your own modules. Version 0.9.3 is identical to the Distutils code included with Python 2.0b2. More information is available at the Distutils web page: http://www.python.org/sigs/distutils-sig/ and in the README.txt included in the Distutils source distribution. You can download the Distutils from http://www.python.org/sigs/distutils-sig/download.html Trivial patches can be sent to me (Greg Ward) at gward(a)python.net. Larger patches should be discussed on the Distutils mailing list: distutils-sig(a)python.org. Greg -- Greg Ward gward(a)python.net http://starship.python.net/~gward/

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Dr. Dobb's Python-URL! - weekly Python news and links (Sep 25)
by Grant Edwards 25 Sep '00

25 Sep '00

Wesley Chun announces BayPIGgies monthly meeting: talk by Joe Ellsworth, CEO of PyBiz, on distributed content management. http://deja.com/=dnc/getdoc.xp?AN=671345151 Wesley Chun teaches course on Python at UC Santa Cruz. http://deja.com/=dnc/getdoc.xp?AN=672944253 Kragen Sitaker answers the question "Of what use is 'lambda'? http://deja.com/=dnc/getdoc.xp?AN=671792095 Zooko's posting on why Mojo Nation (a distributed file sharing system with a micro-payment facility) was written in Python. http://deja.com/=dnc/getdoc.xp?AN=672197723 Will Ware posts hints for debugging memory leaks. http://deja.com/=dnc/getdoc.xp?AN=672487959 Walter Dörwald announces XIST 0.4 - an XML based extensible HTML generator. http://deja.com/=dnc/getdoc.xp?AN=671956283 Kragen Sitaker contributes a "[s]imple implementation of Self-like prototype-based inheritance" http://deja.com/=dnc/getdoc.xp?AN=673271182 ======================================================================== Everything 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 although PythonLabs.com bills itself as "The Python Source", which is becoming increasingly true in 2000 http://www.pythonlabs.com/ PythonWare complements the digest you're reading with the daily python url http://www.pythonware.com/daily comp.lang.python.announce announces new Python software. Be sure to scan this newly-revitalized newsgroup at least weekly. http://deja.com/group/comp.lang.python.announce The Vaults of Parnassus ambitiously collects 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 Consortium emerges as an independent nexus of activity http://www.python.org/consortium Cetus does much of the same http://www.cetus-links.de/oo_python.html Python FAQTS http://python.faqts.com/ Python To-Do List anticipates some of Python's future direction http://www.python.org/cgi-bin/todo.py Python Journal is at work on its second issue http://www.pythonjournal.com Links2Go is a new semi-automated link collection; it's impressive what AI can generate http://www.links2go.com/search?search=python Archive probing trick of the trade: http://www.dejanews.com/dnquery.xp?QRY=&DBS=2&ST=PS&defaultOp=AND&LNG=ALL&f… Previous - (U)se the (R)esource, (L)uke! - messages are listed here: http://purl.org/thecliff/python/url.html or http://www.dejanews.com/dnquery.xp?QRY=~g%20comp.lang.python%20Python-URL%21 Suggestions/corrections for next week's posting are always welcome. [http://www.egroups.com/list/python-url-leads/ is hibernating. Just e-mail us ideas directly.] To receive a new issue of this posting in e-mail each Monday morning, ask <claird(a)neosoft.com> 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. -- Cameron Laird <claird(a)NeoSoft.com> Business: http://www.Phaseit.net Personal: http://starbase.neosoft.com/~claird/home.html

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ID3.py version 1.0 released!
by Ben Gertzfield 21 Sep '00

21 Sep '00

At long last, the ID3 Python module has reached version 1.0. ID3.py is a simple Python module for retrieving and setting so-called ID3 tags on MP3 compressed audio files through an object-oriented interface. MP3 players generally use this simple information for display track title, artist name, and album title while playing the sound file. ID3.py supports ID3 version 1.1, including the track number field. I have no current plans to code up the monstrosity that is ID3v2 (http://www.id3.org/id3v2.3.0.html) but if someone wants to add that functionality, feel free! The latest version of ID3.py can always be found at: http://csl.cse.ucsc.edu/~ben/python/ The changes in version 1.0 include ID3 v1.1 support (track numbers), automatic stripping of whitespace in ID3 fields, an actual (gasp) README file, and a setup.py script for Python 1.6 or Distutils users. Happy Pythoning! Ben -- Brought to you by the letters Q and R and the number 9. "Porcoga daisuki!" Debian GNU/Linux maintainer of Gimp and GTK+ -- http://www.debian.org/

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[FAQTS] Python Knowledge Base Update -- September 20th, 2000
by Fiona Czuczman 20 Sep '00

20 Sep '00

Back to my nocturnal habits... The latest entries into http://python.faqts.com Fiona ## Unanswered Questions ######################################## ------------------------------------------------------------- How can I use the ConfigParser to parse through a text file? http://www.faqts.com/knowledge-base/view.phtml/aid/5928 ------------------------------------------------------------- Sumita Ponnuchamy ## New Entries ################################################# ------------------------------------------------------------- Setting Focus in Pmw.Dialog http://www.faqts.com/knowledge-base/view.phtml/aid/5936 ------------------------------------------------------------- Fiona Czuczman Matthew Dixon Cowles Problem: I use Pmw.Dialog to prompt the user for some text. The dialog is just what I need, but for some reason I can't set the initial keyboard focus to the entry field. The standard "askstring" dialog doesn't give me control over the edit field size (that I can see), so I tried this: ------------------------------------------------------------------------ dialog = Pmw.Dialog( root, buttons = ( 'OK', ), buttonboxpos = S, title = 'Prompt' ) w = Pmw.EntryField( dialog.interior(), label_text = prompt, labelpos = NW, labelmargin = 1, entry_width = 50 ) w.pack( padx = 15, pady = 15 ) dialog.configure( activatecommand = w.focus_set ) dialog.focus_force() dialog.activate() ---------------------------------------------------------------------- The result of "dialog.configure( activatecommand = w.focus_set )" is that the dialog doesn't get focus at all. If I comment this line out, the dialog gets focus, but the user has to click in the entry field, or tab twice to get to it (first tab goes to OK button). Solution: Your problem is that a Pmw.EntryField is itself a compound widget (I've been caught by this one too). You want something like: dialog.configure( activatecommand = w.component("entry").focus_set ) You can also get a similar result by replacing dialog.configure( activatecommand = w.focus_set ) dialog.focus_force() with w.component("entry").focus_force() ------------------------------------------------------------- How do I pass on keyword arguments in a function? http://www.faqts.com/knowledge-base/view.phtml/aid/5937 ------------------------------------------------------------- Fiona Czuczman Johann Hibschman, Greg Ewing Problem: ------------- def mark( a, b , **kw): print 'Mark' passKeywords(kw) # THIS DOESN'T WORK!!! MAKE IT WORK!!! def passKeywords( a,**kw ) """ just do something """ print 'Gibson' ------------- call it: doSomething( 1,3,name='Mark',Last='Gibson') produces: Mark Traceback (innermost last): File "<stdin>", line 1, in ? File "<stdin>", line 3, in mark TypeError: too many arguments; expected 0, got 1 ----------------- What I want to know is how do I pass kw from mark() to passKeywords()? Solution: apply(passKeywords, (), kw) Or, in Python 2.0, passKeywords(**kw) ------------------------------------------------------------- What is the exact purpose of fileno()? http://www.faqts.com/knowledge-base/view.phtml/aid/5938 ------------------------------------------------------------- Fiona Czuczman Donn Cave The file object is an I/O buffer and a device. The C library allocates space for the buffer in your process memory, and when you read or write the data comes from or goes to that buffer. The stdio C library functions manage the buffer by reading or writing to the device. Since physical device access is a very expensive operation for the computer, buffering like that basically allows you to work with small or random size I/O requests while economizing on system resources. However, there are times when you need to do something that the stdio library doesn't account for, like select(), or a filesystem lock, or some terminal driver function. The fileno() function exposes the file object's file descriptor or unit number, which on UNIX is the raw device. Select() already knows about fileno(), so you can give it a socket or whatever and it will call fileno() itself, but usually it's up to you to call fileno() and get the descriptor. Of course the socket fileno() function is more or less the same idea as the file object's fileno(), but the socket isn't a file object and doesn't have its own buffer. (On UNIX you can make a file object from a socket, but it's difficult to make that work both properly and efficiently with select().) The result from socket fileno() is a file descriptor on UNIX, but it isn't necessarily so on other operating systems. You can get file descriptors directly if you use the posix.open() function, (A.K.A. os.open().) ------------------------------------------------------------- Is there an easy way given an internal webpage to cycle through all the links on the page and find which ones are broken? http://www.faqts.com/knowledge-base/view.phtml/aid/5939 ------------------------------------------------------------- Fiona Czuczman Jeremy Hylton, Dan Gindikin Look at Tools/webchecker in the Python distribution. Check out linkchecker.sourceforge.net ## Edited Entries ############################################## ------------------------------------------------------------- How do I get the full pathname of a module? Let's say I use 'import' to load a module. How can I find the location of its *.py or *.pyc file? http://www.faqts.com/knowledge-base/view.phtml/aid/5918 ------------------------------------------------------------- Rolf Freimuth, Fiona Czuczman Mike Fletcher def modulePath( module ): import os return os.path.abspath( module.__file__ )

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Python-announce-list September 2000