Python-announce-list August 2009

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58 participants
75 discussions

SQLObject 0.11.0
by Oleg Broytmann 12 Aug '09

12 Aug '09

Hello! I'm pleased to announce version 0.11.0, the first stable release of 0.11 branch of SQLObject. What is SQLObject ================= SQLObject is an object-relational mapper. Your database tables are described as classes, and rows are instances of those classes. SQLObject is meant to be easy to use and quick to get started with. SQLObject supports a number of backends: MySQL, PostgreSQL, SQLite, Firebird, Sybase, MSSQL and MaxDB (also known as SAPDB). Where is SQLObject ================== Site: http://sqlobject.org Development: http://sqlobject.org/devel/ Mailing list: https://lists.sourceforge.net/mailman/listinfo/sqlobject-discuss Archives: http://news.gmane.org/gmane.comp.python.sqlobject Download: http://cheeseshop.python.org/pypi/SQLObject/0.11.0 News and changes: http://sqlobject.org/News.html What's New ========== News since 0.10 ----------------- Features & Interface ~~~~~~~~~~~~~~~~~~~~ * Dropped support for Python 2.3. The minimal version of Python for SQLObject is 2.4 now. * Dropped support for PostgreSQL 7.2. The minimal supported version of PostgreSQL is 7.3 now. * New magic attribute 'j' similar to 'q' was added that automagically does join with the other table in MultipleJoin or RelatedJoin. * SQLObject can now create and drop a database in MySQL, PostgreSQL, SQLite and Firebird/Interbase. * Added some support for schemas in PostgreSQL. * Added DecimalStringCol - similar to DecimalCol but stores data as strings to work around problems in some drivers and type affinity problem in SQLite. * Added sqlobject.include.hashcol.HashCol - a column type that automatically hashes anything going into it, and returns out an object that hashes anything being compared to itself. Basically, it's good for really simple one-way password fields, and it even supports the assignment of None to indicate no password set. By default, it uses the md5 library for hashing, but this can be changed in a HashCol definition. * RowDestroyedSignal and RowUpdatedSignal were added. Minor features ~~~~~~~~~~~~~~ * Use reversed() in manager/command.py instead of .__reversed__(). * Minor change in logging to console - logger no longer stores the output file, it gets the file from module sys every time by name; this means logging will use new sys.stdout (or stderr) in case the user changed them. * Changed the order of testing of SQLite modules - look for external PySQLite2 before sqlite3. For a more complete list, please see the news: http://sqlobject.org/News.html Oleg. -- Oleg Broytmann http://phd.pp.ru/ phd(a)phd.pp.ru Programmers don't die, they just GOSUB without RETURN.

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APSW 3.6.17-r1 released
by Roger Binns 12 Aug '09

12 Aug '09

APSW 3.6.17-r1 is now available. The home page is at http://code.google.com/p/apsw/ which includes full documentation, source and binary distributions for Windows (Python 2.3 onwards including 3.0 & 3.1). The opensource license used is the zlib/png license. APSW is a wrapper around the SQLite embedded database that provides all SQLite API functionality in Python. It is not DBAPI compliant as it provides SQLite semantics. pysqlite provides DBAPI semantics. You can see the two approaches contrasted at http://apsw.googlecode.com/svn/publish/pysqlite.html Changelist is below and a clickable version at http://apsw.googlecode.com/svn/publish/changes.html APSW has migrated from Subversion to Mercurial for source code control. Hosting remains at Google Code Updated a test due to VFS xUnlock errors now being ignored sometimes by SQLite (SQLite ticket 3946). The downloads page in the help didn’t mention the Windows Python 3.1 installer. Running the test suite is now integrated into setup.py so you can do the building and testing all in one go. Sample command line: $ python setup.py install test The test suite will now check the functionality of the FTS3, RTree and ICU extensions if they were included. (The Windows binary distribution includes FTS3 and RTree by default.) Fixed issue 55 where FTS3 was unintentionally omitted from the Windows binary distribution. Various documentation updates. Roger

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Exceptional Conditions: Regular Toronto Python User's group on Tuesday
by Mike C. Fletcher 12 Aug '09

12 Aug '09

We'll have our regular Toronto Python User's Group (PyGTA) meeting on Tuesday the 18th of August. This month's topic: Exceptional Conditions: when to ignore, assert, raise, log, except, or email? When programming in Python, we often run into situations which are not "normal" or expected. Python allows you to deal with these situations in any number of different ways: * ignoring the error (letting a lower-level library raise an exception) * asserting an assumption (raising a generic error that says something shouldn't have happened) * raising an explicit error * returning a "success" flag with your "real" return value * providing finally/context-manager operations (unconditional cleanup) * logging the exceptional condition and continuing * logging the condition into a database * sending a syslog message * catching a particular error and ignoring * catching all errors and ignoring * displaying a nice error message to the user * emailing a user In our round-table on Tuesday we'll try to hash out when/where/why you would choose any or all of these approaches. Do you have coding standards that make exceptional conditions un-exceptional? Do you have tools you use to make logs more useful? Do you have a rule-of-thumb you apply to choose an approach? Are there different requirements for GUI versus Web applications? What about embedded/appliance applications? How much information should a user be given about a failure condition? We'll look at the various tools available and how to use them as well. We'll meet at our regular time and location, Linux Caffe at 7:10pm. http://www.pygta.org BTW, we're looking for speakers and/or topics for September, October and beyond. We're particularly interested in new-user friendly topics that can help the (large) new crop of Pythonistas advance quickly. Email me with your suggestions or ideas, or bring them up at the meeting. Hope to see you on Tuesday, Mike -- ________________________________________________ Mike C. Fletcher Designer, VR Plumber, Coder http://www.vrplumber.com http://blog.vrplumber.com

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[ANNOUNCE] PyGobject 2.19.0 - unstable
by Gian Mario Tagliaretti 11 Aug '09

11 Aug '09

I am pleased to announce version 2.19.0 of the Python bindings for GObject. The new release is available from ftp.gnome.org as and its mirrors as soon as its synced correctly: http://download.gnome.org/sources/pygobject/2.19/ What's new since PyGObject 2.18.0? - Add macros to help with Python list to/from GList/GSList conversions. (John Finlay) - GIO docs practically completed (Gian) - GFileInfo.list_attributes should accept None/NULL (Gian) - Strip out Windows DLL API macros (John Finlay) - Document that many functions got moved gobject -> glib (Paul) - Allow h2def.py to work when there are tabs or multiple spaces after the struct keyword. (Murray Cumming) - Fix build when builddir is not the same as srcdir (Theppitak Karoonboonyanan) - Make gio.Emblem constructor new-style (Paul) - Cleanup GIO overrides to use Python function/method names (Paul) - Make codegen report errors using Python function/method names (Paul) - Fix object type in gio.BufferedInputStream_fill_async (Gian) - Wrap gio.BufferedInputStream.fill_async (Gian) - Add gio.BufferedOutputStream which was forgotten in the types (Gian) - Split overrides for gio.MemoryOutputStream (Gian) - Wrap gio.memory_input_stream_new_from_data (Gian) - Introduces the girepository module from the former PyBank (Simon van der Linden) - Add API appeared in 2.20 but not marked as such in gio docs (Gian) - Wrap gio.FileOutputStream.query_info_async (Gian) - Wrap gio.FileInputStream.query_async (Gian) - Install executable codegen parts with executing permissions (Paul) - Wrap gio.DataInputStream.read_line_async and read_until_async (Paul) - Fix gio.OutputStream.splice_async (Paul) - Add GIO 2.20 API and update docs (Gian) Blurb: GObject is a object system library used by GTK+ and GStreamer. PyGObject provides a convenient wrapper for the GObject library for use in Python programs, and takes care of many of the boring details such as managing memory and type casting. When combined with PyGTK, PyORBit and gnome-python, it can be used to write full featured Gnome applications. Like the GObject library itself PyGObject is licensed under the GNU LGPL, so is suitable for use in both free software and proprietary applications. It is already in use in many applications ranging from small single purpose scripts up to large full featured applications. PyGObject requires glib >= 2.14.0 and Python >= 2.3.5 to build. GIO bindings require glib >= 2.16.0. cheers -- Gian Mario Tagliaretti GNOME Foundation member gianmt(a)gnome.org

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GOZERBOT 0.9.1 released
by Bart Thate 11 Aug '09

11 Aug '09

here it is .. GOZERBOT 0.9.1 !! Main change this time is the distribution method, we now provide a tar.gz with all the dependencies included. This means that you can run the bot locally without any root required. Python 2.5 or higher needed, see http://gozerbot.org Enjoy ! about GOZERBOT: GOZERBOT is a channel bot that aids with conversation in irc channels and jabber conference rooms. its mainly used to serve rss feeds and to have custom commands made for the channel. More then just a channel bot GOZERBOT aims to provide a platform for the user to program his own bot and make it into something thats usefull. This is done with a plugin structure that makes it easy to program your own. But GOZERBOT comes with some batteries included, there are now over 100 plugins already written and ready for use.

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DjangoCon Schedule
by Robert Lofthouse 11 Aug '09

11 Aug '09

Hi All, We have released the DjangoCon Schedule at: http://www.djangocon.org/2009/conference/schedule/ and will be releasing more information over the next day or two. DjangoCon is on 8th - 12th September in Portland, Oregon at the DoubleTree Green Hotel. We had a great time last year at Google HQ, where 250 people turned up for the first ever DjangoCon. Keynotes are: Avi Bryant, Ian Bicking and Ted Leung. We have a wide variety of talks from all aspects of the community, including a Technical Design Panel where you get to discuss design ideas/confusions with the Core devs. You can purchase tickets for the conference here - http://djangocon09.eventbrite.com Robert Lofthouse DjangoCon Chairman - http://www.djangocon.org/

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ANN: M2Crypto 0.20
by Heikki Toivonen 11 Aug '09

11 Aug '09

I am please to announce the M2Crypto 0.20 release, which was in development for over nine months. Over 30 bugs fixed by more than ten people. Download links and bug filing instructions on the homepage at http://chandlerproject.org/Projects/MeTooCrypto. M2Crypto is the most complete Python wrapper for OpenSSL featuring RSA, DSA, DH, HMACs, message digests, symmetric ciphers (including AES); SSL functionality to implement clients and servers; HTTPS extensions to Python's httplib, urllib, and xmlrpclib; unforgeable HMAC'ing AuthCookies for web session management; FTP/TLS client and server; S/MIME; ZServerSSL: A HTTPS server for Zope and ZSmime: An S/MIME messenger for Zope. Smartcards supported with the Engine interface. Changelog: - Deprecated M2Crypto.PGP subpackage since nobody seems to be using it nor is it being maintained (if you do use it, please let me know) - Added fedora_setup.sh to help work around differences on Fedora Core -based distributions (RedHat, CentOS, ...); thanks to Miloslav Trmac - Added X509.load_request_bio and load_request_string, by Hartmut Goebel and Pavel Shramov - Added alias X509.Request.set_subject for set_subject_name to match X509.X509, by Pavel Shramov - OBJ_* wrappers did not work properly with OpenSSL 0.9.8a and earlier, fix by Pavel Shramov - Added ASN1_UTCTIME.get_datetime and set_datetime, by Pavel Shramov - Fixed obj_obj2txt, which returned nonsense, fix by Barney Stratford - m2urllib did not close sockets properly, fix by Miloslav Trmac - Allow SSL peer certificate to have subjectAltName without dNSName and use commonName for hostname check, fix by Miloslav Trmac - threading_locking_callback did not block on a lock when the lock was held by another thread, by Miloslav Trmac - Allow more blocking OpenSSL functions to run without GIL, by Miloslav Trmac - Fixed httpslib to send only the path+query+fragment part of the URL when using CONNECT proxy, by James Bowes - SSLServer.__init__ now takes optional bind_and_activate parameter and initializes by calling SocketServer.BaseServer.__init__, which are Python 2.6 compatibility fixes, by Christian - ftpslib now works with Python 2.6, by Theodore A. Roth - httpslib.ProxyHTTPSConnection needs to cast port into integer, by John M. Schanck - Added support for RSASSA-PSS signing and verifying, by Chris Collis - Added support for disabling padding when using RSA encryption, by Chris Collis - ASN1_INTEGERs can now be larger than fits in an int, for example to support X509 certificates with large serial numbers, patch by Mikhail Vorozhtsov and testcase by Barry G. - Reverted a change done in 0.17 to m2urllib2 which changed urls to include host when it should stay as it was - httpslib no longer uses urllib; instead it uses urlparse for url parsing - SMIME.text_crlf and text_crlf_bio were always raising TypeError; fixed - EVP.load_key and load_key_bio fixed to raise EVP.EVPError and BIO.BIOError instead of str (str exceptions not allowed in Python 2.6 and later) - SSL.Session.load_session fixed to raise SSL.SSLError instead of str - SMIME.load_pkcs7, load_pkcs7_bio, smime_load_pkcs7, smime_load_pkcs7_bio, text_crlf, text_crlf_bio fixed to raise BIO.BIOError, SMIME.PKCS7_Error and SMIME.SMIME_Error as appropriate instead of str - Added FIPS mode to unit tests, and used FIPS-compliant key sizes in other tests, by Miloslav Trmac. Note that tests run much slower because of this! - Unit tests cover 80% of the code -- Heikki Toivonen - http://heikkitoivonen.net

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ANN Join ChiPy on Thursday August 13, 2009 Matplotlib, best meeting ever.
by Brian Ray 10 Aug '09

10 Aug '09

Chicago Python User Group ========================= We welcome back Dr John Hunter. Matplotlib is probably the most popular open source 2D plotting library ever. It has multiple rendering engines, supports tons of plot formats, and even typesets complicated equations properly. Matplotlib, makes "easy things easy and hard things possible. " Our host for the meeting is Sully's House Tap Room & Grill. All ages are welcome to this Free Private Event. For those of age, Sully’s House offer 20 Beers on tap, and 35 Bottles - all craft and microbrewery, specializing in Belgium, Irish and German selections. Enjoy great Bar Food & Pizza from our Italian Oven and Daily discounted menu specials. The host has given us a dedicated bartender. We will meet in the private party room on the second floor that is well equipped with top of the line video equipment – 100” HD screen & full A/V accessibility with Rock Band & Wii. Nice big space, bring a friend. Thanks Sully's!!! This *will* be our best meeting yet. Put this on your calendar. All levels welcome! New to Python, welcome. Scientist, welcome. Financial plotting people, welcome. Curious... come on up to the second floor at Sullys this Thursday. Forward this to others! Topics ------ * (45 min) Matplotlib, the popular 2D Plotting by Dr. John Hunter, the creator of Matplotlib * (15 min) Rohit Sankaran: Rendezvous - for scheduling meetings and other events. It's not the same codebase as Meetshop but it strives for similar functionality. * (15 min) bcfg2 configuration management - Narayan Desai * (15 min) Application messaging architecture using AMQP - Garrett Smith * (15 min) Configator: It Chomps Config - Pete Fein When ---- Thursday, August 13th, ~7pm Location -------- Sully’s House Tap Room & Grill, 1501 N. Dayton St. Chicago, Illinois 60622 At the corner of Blackhawk and Dayton http://www.sullyshouse.com/ (2) Blocks from the North & Clybourn Red Line stop. Free street parking available. About ChiPy ----------- ChiPy is a group of Chicago Python Programmers, l33t, and n00bs. Meetings are held monthly at various locations around Chicago. Also, ChiPy is a proud sponsor of many Open Source and Educational efforts in Chicago. Stay tuned to the mailing list for more info. ChiPy website: <http://chipy.org> ChiPy Mailing List: <http://mail.python.org/mailman/listinfo/chicago> ChiPy Announcement *ONLY* Mailing List: <http://mail.python.org/mailman/listinfo/chipy-announce > Python website: <http://python.org>

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TriZPUG August 2009 Meeting
by Chris Calloway 10 Aug '09

10 Aug '09

Thursday, August 27, 7pm in Room 2015, Engineering Buildging I, NCSU Centennial Campus, Raleigh. http://trizpug.org/Members/cbc/aug-09-mtg/ Canonical developer Gary Poster will give his OSCON presentation "Launchpad Foundations: If the Abstractions Don't Kill Us..." The talk is about how Launchpad uses the zope.interface and zope.component libraries. The talk is based on interviews with Launchpad engineers. The talk discusses how we might improve our use of the Zope Component Architecture, how the technology might be change, and how the technology might be used in other contexts like Django. We will adjourn for food and beverage at a local eatery after the meeting. -- Sincerely, Chris Calloway http://www.secoora.org office: 332 Chapman Hall phone: (919) 599-3530 mail: Campus Box #3300, UNC-CH, Chapel Hill, NC 27599

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Florida Python training in October
by lutz＠rmi.net 10 Aug '09

10 Aug '09

We're pleased to announce a new venue for our Python classes. Python author and trainer Mark Lutz will be teaching a 3-day Python class on October 20-22, in Sarasota, Florida. Come spend 3 days mastering Python, and enjoy all that Florida and its Gulf Coast have to offer while you're here. This is a public training session open to individual enrollments, and covers the same topics and hands-on lab work as the over 200 onsite sessions that Mark has taught. The class provides an in-depth introduction to both Python and its common applications, and parallels the instructor's best-selling Python books. This class is also newly retooled to cover recent changes in both Python 2.6 and 3.1. Whether you're using 2.X, using 3.X, or stuck somewhere between them, you'll find that our class is aimed at your needs. For more information on this session, please visit its web page: http://home.earthlink.net/~python-training/2009-public-classes.htm For additional background on the class itself, as well as a preview of our 2010 Florida class schedule, see our home page: http://home.earthlink.net/~python-training Thanks for your interest, --Mark Lutz's Python Training Services

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Python-announce-list August 2009