Mailman 3 January 2002 - Python-announce-list

[ANN] Pyreverse-0.1
by Alexandre Fayolle 08 Jan '02

08 Jan '02

Pyreverse is a set of tools for reverse engineering python code. So far, it features dependency analysis tools and XMI generation for importation in a UML modeling tool. A special module can be used to generate ArgoUML project files to visualize class diagrams generated by pyreverse. Pyreverse home: http://www.logilab.org/pyreverse/ Download : ftp://ftp.logilab.org/pub/pyreverse/ ArgoUML : http://www.argouml.org/ Alexandre Fayolle -- LOGILAB, Paris (France). http://www.logilab.com http://www.logilab.fr http://www.logilab.org Narval, the first software agent available as free software (GPL).

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Roundup 0.4.0b1 - an issue tracking system
by Richard Jones 08 Jan '02

08 Jan '02

Roundup 0.4.0b1 - an issue tracking system If you are upgrading please read MIGRATION.txt. Roundup requires python 2.1.1 for correct operation. Support for dumbdbm requires python 2.1.2 or 2.2. Big stuff in this release: - Use of transactions to prevent partial data commits - Zope Product front-end - Nicer, more consistent change message generation - Several bug fixes - Much, much more: see the CHANGES file for details. Source and documentation is available at the website: http://roundup.sourceforge.net/ Release Info (via download page): http://sourceforge.net/projects/roundup 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 2.0+ 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 and three database back-ends.

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ANN: pyComic v0.8.0pre
by Ryan Phillips 07 Jan '02

07 Jan '02

The initial release of pyComic is available for your enjoyment. pyComic is an online python comic parser licensed under the GPL. Current features include image downloading, and html generation (with skin support). This is my very first python application, so there are probably some bugs and fixes that can be applied. Any feedback and bug fixes would be appreciated. Todo: Add support for 'class' type comics... Requirements: Only tested with Python 2.1.1. Download: http://sourceforge.net/projects/pycomic/

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[Module] IPy - class and tools for handling of IPv and IPv6 Addresses and Networks.
by drt-usenet＠un.bewaff.net 07 Jan '02

07 Jan '02

I'm proud to announce the first public relase of IPy. IPy is a Python module for handling IPv4 and IPv6 addresses and networks in a fashion similar to Perl's Net::IP and related modules. The IP class allows a programmer to comfortably parse and handle most notations in use for IPv4 and IPv6 addresses and networks. It can detect about a dozen different ways of expressing IP addresses and networks, parse them, and distinguish between IPv4 and IPv6 addresses. IPy comes with a lot of docstrings containing doctest-proofed examples, a distutils-based setup script, and an extensive test script. It can be found http://c0re.jp/c0de/IPy/ IPy allows you to handle IP Networks in a highly python integrated way like this: >>> ip = IP('127.0.0.0/30') >>> for x in ip: ... print x ... 127.0.0.0 127.0.0.1 127.0.0.2 127.0.0.3 >>> ip2 = IP('0x7f000000/30') >>> ip == ip2 1 drt -- teenage mutant ninja hero coders from da c0re - http://c0re.jp/ me - http://koeln.ccc.de/~drt/

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Data Mining in Python
by Aleks Jakulin 07 Jan '02

07 Jan '02

I have completed a small collection of libraries useful for machine learning and data mining. It requires win32, Python 2.1 and the Orange machine learning framework library, both freely downloadable. Features: Clustering / Unsupervised Learning: - k-means (medoid) clustering - fuzzy clustering - hierarchical agglomerative clustering Supervised Learning: - multiclass logistic regression - multiclass SVM for classification, regression, and density estimation - wrapped multiclass SVM classifier which outputs class probabilities - general wrappers for multiclass classification with binary classifiers - several ensemble construction methods - support for "merging" the final classification from ensembles of classifiers that output probability distributions Note that Orange itself provides tremendously many features: discretization, k-NN, classification and regression trees, naive Bayes classifiers, evaluation techniques (stratified cross validation, random sampling, aROC, etc), constructive induction, etc. Check out http://magix.fri.uni-lj.si/orange/ It can all be found at http://ai.fri.uni-lj.si/~aleks/orng/ I'm sorry for not supporting Python 2.2, and platforms other than win32 at the moment. But all that will come provided sufficient user stimulation. Best regards, Aleks Aleks Jakulin (jakulin@@ieee.org) Faculty of Computer and Information Science University of Ljubljana Slovenia +386 41 379 137

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ANN: PyChecker v0.8.7
by Neal Norwitz 05 Jan '02

05 Jan '02

A new version of PyChecker is available for your hacking pleasure. PyChecker is a tool for finding bugs in python source code. It finds problems that are typically caught by a compiler for less dynamic languages, like C and C++. It is similar to lint. Comments, criticisms, new ideas, and other feedback is welcome. There are still a few problems with Python 2.2 and nested scopes, but for the most part it should work pretty well. The unreachable code option is off by default. There are still some problems with spurious warnings. But help with simple test cases would be appreciated. Changes from 0.8.6 to 0.8.7: * Add -2/--constcond option to warn if using a constant in a conditional statement (if '': ; while 'str': ; etc) Also this: assert(x == 53, "hey, x != 53") * Add -1/--constant1 option to warn when using if 1: or while 1: etc. * Add -8/--unreachable option to warn about unreachable code * Add -9/--members option to warn about unused data members * Add -w/--shadow for local variable shadowing global variable * Add warning statements with no effect, for example: fp = open('file') fp.close # oops, forgot to call the method fp.close() * Handle string multiplication (helps format strings) code like this doesn't generate a warning now: '%d ' * 3 % (1, 2, 3) * Fix -C/--implicitreturns option so it works, turn it on by default * Fix spurious warning when accessing 'static' class members that are methods (e.g. class C(B): __super_init = B.__init__) (still a problem w/2.2) * Fix some strange spurious warnings and exceptions * Handle nested scopes better, includes fixing a crash and eliminating some spurious warnings I don't think I announced v 0.8.6, so here are the changes from 0.8.5 to 0.8.6: * Add -5/--maxrefs for maximum # of identifier references (Law of Demeter) * Fix problem where user defined classes weren't checked for valid attributes * Allow use of __pychecker__ in class scope * Fix a lot of global function arg counts for Python 2.2 (many constructors can take no arguments now) * Fix spurious warning (Function return types are inconsistent) when multiple returns w/a constant & a local variable of same type * Fix spurious warning for format strings when using a dict local variable * Rename pychecker.sh script to pychecker on Unix PyChecker is available on Source Forge: Web page: http://pychecker.sourceforge.net/ Project page: http://sourceforge.net/projects/pychecker/ Neal -- pychecker(a)metaslash.com

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ANN: Time period library period-0.5 released
by William Annis 04 Jan '02

04 Jan '02

The fifth public release of the period library is available at http://www.biostat.wisc.edu/~annis/creations/period.py.html . The library is designed to allow one to specify both unique and recurring time periods symbolically. For example, if you have some program which should only run on Sunday evenings (say, web-log rotations), you can specify that in your program: from period import in_period import sys if in_period('Sunday.Hr17-23'): do_something() else: sys.exit(1) # Don't start at other times! The most significant change to the code since previous versions is that it is now possible to nest and group period expressions, which makes the library much easier to use. For example, you can now specify a period such as '!(Monday|Friday).Hr11-14' and get a reasonable answer. Documentation is on the web page and is included with the source. -- William Annis - System Administrator - Biomedical Computing Group "When men are inhuman, take care not to feel towards them as they do towards other humans." Marcus Aurelius VII.65

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cx_Oracle 2.4
by Anthony Tuininga 04 Jan '02

04 Jan '02

My apologies for reposting this announcement, but I forgot one critical piece of information: the URL for downloading! http://www.computronix.com/utilities I am pleased to announce the availability of a new version of cx_Oracle, the Python interface to Oracle. New in this release: 1) String variables can now be made any length (previously restricted to the 64K limit imposed by Oracle for default binding); use the type cx_Oracle.LONG_STRING as the argument to setinputsizes() for binding in string values larger than 4000 bytes. 2) Raw and long raw columns are now supported; use the types cx_Oracle.BINARY and cx_Oracle.LONG_BINARY as the argument to setinputsizes() for binding in values of these types. 3) Functions DateFromTicks(), TimeFromTicks() and TimestampFromTicks() are now implemented. 4) Function cursor.setoutputsize() implemented 5) Added the ability to bind arrays as out parameters to procedures; use the format [cx_Oracle.<DataType>, <NumElems>] as the input to the function setinputsizes() for binding arrays 6) Discovered from the Oracle 8.1.6 version of the documentation of the OCI libraries, that the size of the memory location required for the precision variable is larger than the printed documentation says; this was causing a problem with the code on the Sun platform. 7) Now support building RPMs for Linux (built on Red Hat Linux 7.2 but will likely work on other distributions) NOTE: As some of these things extend the DB API, comments are most welcome on whether this implementation is sensible! Anthony

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Cygwin Python 2.2-1
by Jason Tishler 04 Jan '02

04 Jan '02

I have updated Python in the standard Cygwin distribution to 2.2-1. Cygwin's setup.exe should be used to install Python 2.2-1 or update your current version to the latest. If interested, see the following for a copy of the original announcement: http://cygwin.com/ml/cygwin-announce/2002/msg00001.html I kindly request that people post to python-list(a)python.org or cygwin(a)cygwin.com as appropriate instead of emailing me directly. Thanks, Jason

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Python Conference News
by Joya Subudhi 04 Jan '02

04 Jan '02

Python 10 Conference News Python 10 is just around the corner. Register today and save with EARLY BIRD REGISTRATION RATES. This early bird offer ends on January 7, 2002. To register, go to http://www.python10.org/p10-regInfo.html The Python 10 GROUP RATE at the Hilton Alexandria Mark Center is only guaranteed until January 11, 2002. For information on room rates and reservation procedures, please go to http://www.python10.org/p10-hotelInformation.html Feature Presentation: Developers' Day opens with the "State of the Python Union" Address by Guido van Rossum Birds-of-a-Feather: Python 10 is now calling for your Birds-of-a-Feather (BoF) submissions. To propose a BoF, please go to: http://www.python10.org/p10-callBoFs.html The Tenth International Python Conference, February 4 - 7, 2002 The Hilton Alexandria Mark Center, Alexandria, Virginia http://www.python10.org Silver Sponsor: Hostway Corporation: http://www.hostway.com Silver Sponsor: New Riders Publishing: http://www.newriders.com Exhibitor: Archaeopteryx Software: http://www.archaeopteryx.com

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