🌐 Mailman 3 September 2007 - Python-list - python.org

Re: metaclasses: timestamping instances
by Michele Simionato Sept. 4, 2007

Sept. 4, 2007

On Sep 1, 6:07 pm, Steve Holden <st...(a)holdenweb.com> wrote: <snip> > > Debugging with Wing IDE and examining the classes at a breakpoint shows > this to be true (even after Y's __metaclass__ assignment is commented out): > > >>> X.__metaclass__ > <class '__main__.Meta'> > >>> Y.__metaclass__ > <class '__main__.Meta'> > >>> For the benefit of the readers I will just point out that in order to determine the metaclass of a class it is far better NOT to relay on the __metaclass__ attribute. The right thing to to is to look at the __class__ attribute, or to use type. Here is a (made up) example where .__metaclass__ gives the wrong result: In [9]: class M(type): pass ...: In [10]: class B: __metaclass__ = M ....: In [11]: B.__metaclass__ = None # now the hook is set to None, but the metaclass does not change In [12]: B.__class__ Out[12]: <class '__main__.M'> Michele Simionato

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Re: [Crew] Four Years of Starship hosting come to an end
by Christian Tismer Sept. 4, 2007

Sept. 4, 2007

Stefan Drees wrote: > Dear Crew of the Python Starship, > > after a short email exchange of thoughts with Christian Tismer, that he > might take over again the hosting of the ship or silently give over some > of its remains to a museum, he encouraged me, to let go after four years > of hosting, so that I can get a grip on new stuff. Yes, Stefan! You hosted the ship, you payed the bills, and you got all the little to nothing feed-backs from the Starship crew that really made you into continuing your job. I am very fond of you. We could go for some real task, now. > Remember? Back in those days, when hosting providers did not offer > python environements but html or perl or php or sh cgi's ... Chris > 'Pirx' Tismer founded the Starship, by spreading the idea that > Pythonistas should buy planks, and he then would assemble a ship - what > would become "our" ship This is almost 10 years ago, and I do remember very well. The Starship had its role, and this was very explicitly stated at one of the ancient PyCon events, when Guido stated that I had not enough resources to support the Starship well enough. Meanwhile, the world has changed quite a lot, and starship's role might have diminished or redefined. > I am convinced, that Chris will be interested, if there is still a need > for the ship and what kind of exact need there is. Yes. If there is a wish to continue Starship, then we can do this. I have a new server with a XEN site set up, ready for you. I also can toss it. It is not me who needs Starship, I'm asking you. > On October, 1st of this year 2007, whatever makes out "the ship" will > have been transferred to another location or just vanish into space. I will at least take the archives, and consider how to carry on, dependent from the community's response. > It has been a real pleisure for me to serve this community with hosting > the ship! It has been great to experience your support! We can now try something completely different. Please let us know your opinions. p.s.: this is the only time I'll be cross-posting to python-list. -- Christian Tismer :^) <mailto:tismer@stackless.com> tismerysoft GmbH : Have a break! Take a ride on Python's Johannes-Niemeyer-Weg 9A : *Starship* http://starship.python.net/ 14109 Berlin : PGP key -> http://wwwkeys.pgp.net/ work +49 30 802 86 56 mobile +49 173 24 18 776 fax +49 30 80 90 57 05 PGP 0x57F3BF04 9064 F4E1 D754 C2FF 1619 305B C09C 5A3B 57F3 BF04 whom do you want to sponsor today? http://www.stackless.com/

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Python411 Podcast: Python for Mobile Interfaces
by UrsusMaximus＠gmail.com Sept. 3, 2007

Sept. 3, 2007

Python for Mobile Interfaces is a clarion call for Pythonistas to pioneer the future of alternative user interfaces for mobile phones, PDA's, and wearable computers, including voice recognition, gesture recognition, and wearable computing. www.awaretek.com

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ANN: lfm 2.0
by Iñigo Serna Sept. 3, 2007

Sept. 3, 2007

Hi out there, After a few years working silently I'm very pleased to announce here the so much awaited new version of 'lfm'. Last File Manager is a simple but powerful file manager for the UNIX console. It's written in Python, using curses module. Licensed under GNU Public License version 3. Some of the features you could find in lfm: - console-based file manager for UNIX platforms - 1-pane or 2-pane view - bookmarks - vfs for compressed files - dialogs with entry completion - fast access to a shell - direct integration of find/grep, df and other tools - tabs per pane - color files by extension [Andrey Skvortsov] - fast file viewer with text and binary modes - ...and many others Download it from: http://www.terra.es/personal7/inigoserna/lfm or if it doesn't show last version (crap of ISP reverse proxy), try this low-bandwidth home server: http://inigo.katxi.org/devel/lfm Of course, all comments, suggestions etc. are welcome. Changes since previous version: Version 2.0 ("Nine 1/2 weeks... ok, ok, and 3 years") - 2007/09/03: + tabs implemented + color files by extension [Andrey Skvortsov] + new IPC code and API; more flexible, powerful and stable + new un/compress vfs API, added support for .zip and .rar files + make sort mode per tab, not globally + support locale [Andrey Skvortsov] + speed up loading directory contents + speed cursor movement, don't waste much CPU + use logging module in lfm and pyview for debugging + overwrite_all_none: yes, all, no => new options: "none", "skip all"" + rewrite/refactor most of code to make lfm more robust and clean + preferences: - change file name preferences.py => config.py - use ConfigParser + use tempfile secure versions mkdtemp() and mkstemp() + added man pages [Sebastien Bacher] + use reST for documentation + check for python version 2.3 or higher in lfm and pyview + updated to GPL v3 license + and fixed lot of bugs, some of them: - general: . delete garbage if user stops action . run 'do_special_view_file' as dettached from lfm window . path expand in bookmarks ("~/") [Andrey Skvortsov] . an ugly traceback crash appears when user starts "lfm path" and has no permissions to enter. Show error message and default to current directory . lfm crashes when filename is not encoded with same codec than g_encoding utils.{decode|encode}. Needs curses module linked against ncursesw to work properly . sort_mix_cases = 1 performance degrades on larger dirs. Reported by Andrey Skvortsov . escape filenames with chars $ ". Reported by Andrey Skvortsov - user interface: . maximize/minimize window don't crash lfm anymore . dialogs appear at bad position after terminal is resized . handle window resize in Tree mode . refresh display after canceling completion dialog . "the size of the right pane does not fill the last column in terminal if their number is odd" [Andrey Skvortsov] . fix crash when "df" shows entries in two different lines (device name is too large, f.e. in linux lvm2 volumes) . if you try to enter a directory with insufficient permissions, after the error message is closed the cursorline refreshes to the first line - compress: . added -i flag (--ignore-zeros) flag to tar [Andrey Skvortsov] . standard tar needs - for flags - vfs: . vfs.py: regenerate_file, if user stops process, tempfile can't be deleted - find/grep: . escape special chars (- \ ( ) [ ]) in patterns . don't crash when find/grep returns no results . bug when matches occur in binary files - pyview: . goto line 0 in pyview showed a blank screen . crash in file info if filename is too long Version 1.0 was never released in public Best regards, Iñigo Serna

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Re: Let's Unite Against Jews and Mongrels!
by Jarek Zgoda Sept. 3, 2007

Sept. 3, 2007

Barry OGrady napisał(a): > What could anyone have against mongrels? You clearly don't know how abusive ROR can be. -- Jarek Zgoda http://jpa.berlios.de/

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Colorado Python training in October
by Mark Lutz Sept. 3, 2007

Sept. 3, 2007

Python author and trainer Mark Lutz will be teaching another 3-day Python class at a conference center in Longmont, Colorado, on October 23-25, 2007. This is a public training session open to individual enrollments, and covers the same topics as the 3-day onsite sessions that Mark teaches, with hands-on lab work. For more information on this class, please visit these web pages: http://home.earthlink.net/~python-training/longmont-public-classes.htm Thanks for your interest. --Python Training Services

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Python object <-> XML
by Samuel Sept. 3, 2007

Sept. 3, 2007

Hi, Say you have the following XML: <item ref="1"> <name>item 1</name> </item> <item ref="2"> <name>item 2</name> </item> <group> <item ref="1" /> <item ref="2" /> <name>my group</name> </group> Is there an easy way (i.e. without writing a sax/dom parser) to load this into a (number of) Python object(s), manipulate the instance, and save the result back to XML? -Samuel

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The reverse of encode('...', 'backslashreplace')
by Tor Erik Sønvisen Sept. 3, 2007

Sept. 3, 2007

Hi, How can I transform b so that the assertion holds? I.e., how can I reverse the backslash-replaced encoding, while retaining the str-type? >>> a = u'æ' >>> b = a.encode('ascii', 'backslashreplace') >>> b '\\xe6' >>> assert isinstance(b, str) and b == 'æ' Traceback (most recent call last): File "<pyshell#59>", line 1, in <module> assert isinstance(b, str) and b == 'æ' AssertionError Regards, tores

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Re: list index()
by Thorsten Kampe Sept. 3, 2007

Sept. 3, 2007

* Terry Reedy (Fri, 31 Aug 2007 02:28:36 -0400) > "Marc 'BlackJack' Rintsch" <bj_666(a)gmx.net> wrote in message > news:5jn9qgFdmbcU3@mid.uni-berlin.de... > | On Thu, 30 Aug 2007 17:09:36 +1000, Ben Finney wrote: > | > zzbbaadd(a)aol.com writes: > | >> What's with the index() function of lists throwing an exception on not > | >> found? > | > > | > It's letting you know that the item isn't in the list. There's no > | > sensible return value from an "index" function in that condition. > | > | What about -1? C programmers do this all the time. :-) > > Because they do not have exceptions. They have plenty of - but they can't catch them :) Thorsten

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ShowMeDo.com Announces Winner of Most-Video-Plays of the Month
by Jeff Rush Sept. 3, 2007

Sept. 3, 2007

ShowMeDo.com, a website offering over 361 instructional screencasts about topics both Python and non-Python, has announced their first winner of the month for the most-played video. And the winner is: "Learn Django: Create a Wiki in 20 minutes" by Siddharta Govindaraj, founder of Silver Stripe Software, with 1851 views in August, far outpacing the second-place entry. The prize is a £20 (UK) voucher to Amazon. Congratulations, Siddhi! You can watch it at: http://showmedo.com/videos/video?name=1100000&fromSeriesID=110 Siddhi is also helping Doug Napoleone with PyCon this year, providing a program for generating attendee badges and working to integrate it into the Django-based conference site. You can find Siddhi at: http://siddhi.blogspot.com/ http://www.silverstripesoftware.com/ So who will win this month? It could be you! How about a screencast showcasing a different web framework like TurboGears or Twisted Web? Or something about databases, either relational or object. Jeff Rush Python Advocacy Coordinator

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