Python-announce-list September 2009

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57 participants
77 discussions

ANN: StarCluster 0.90beta Released - HPC Clusters on Amazon's EC2
by Justin Riley 16 Sep '09

16 Sep '09

I'd like to announce the first beta release of StarCluster, a utility for creating and managing general purpose computing clusters hosted on Amazon's Elastic Compute Cloud (EC2). >From the PyPI Page: StarCluster minimizes the administrative overhead associated with obtaining, configuring, and managing a traditional computing cluster used in research labs or for general distributed computing applications. StarCluster is built on top of EC2 which enables dynamically creating and destroying clusters of virtual machines and only paying for the time used. The amount per hour varies depending on the instance type and the number of virtual machines. StarCluster consists of a library and set of scripts that use the library. For end-users, the scripts are the main user interface and provide simple intuitive options for getting started with distributed computing on EC2 (i.e. starting/stopping clusters, managing software configurations, etc). For developers, the library wraps the EC2 API to provide a simplified interface for launching/terminating nodes, executing commands on the nodes, copying files to/from the nodes, etc. To get started, the user creates a simple configuration file with their account details and a few preferences (i.e. number of machines, instance type, EBS volumes to be mounted, etc). After creating the configuration file and starting the software, a cluster of Linux machines configured with a queuing system (Sun Grid Engine), a nfs shared /home directory, and OpenMPI is created and ready to go out of the box. StarCluster has been targeted for computational research labs and to support classrooms with computational requirements. For research labs, StarCluster is a way for graduate students and faculty to have an on-demand cluster. This means students can access their research with the same hardware and software configurations wherever they go; even if they move to another institution. StarCluster also provides a way for students to experiment with a computational model on a cheap budget before running on local dedicated resources. In the classroom, StarCluster provides a cost effective, reliable way of managing the software configurations for a particular course. It also removes the majority of system administration concerns since the initial setup procedures have been captured in StarCluster and in the user's software configurations (i.e. AMI images, EBS volumes, etc). This means that each semester the exact computing cluster configuration can be recalled with more or less nodes. With this model there is also the benefit that if hardware problems occur it's easy to request a new set of machines in the cloud. Homepage: http://web.mit.edu/starcluster PyPI: http://pypi.python.org/pypi/StarCluster Code: http://github.com/jtriley/StarCluster/tree/master Freshmeat: http://freshmeat.net/projects/starcluster ComputerWorld (AU) Article: http://www.computerworld.com.au/article/316891/open_source_starcluster_shin…

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ANN: StarCluster 0.90beta Released - HPC Clusters on Amazon's EC2
by Justin Riley 16 Sep '09

16 Sep '09

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'd like to announce the first beta release of StarCluster, a utility for creating and managing general purpose computing clusters hosted on Amazon's Elastic Compute Cloud (EC2). - From the PyPI Page: StarCluster minimizes the administrative overhead associated with obtaining, configuring, and managing a traditional computing cluster used in research labs or for general distributed computing applications. StarCluster is built on top of EC2 which enables dynamically creating and destroying clusters of virtual machines and only paying for the time used. The amount per hour varies depending on the instance type and the number of virtual machines. StarCluster consists of a library and set of scripts that use the library. For end-users, the scripts are the main user interface and provide simple intuitive options for getting started with distributed computing on EC2 (i.e. starting/stopping clusters, managing software configurations, etc). For developers, the library wraps the EC2 API to provide a simplified interface for launching/terminating nodes, executing commands on the nodes, copying files to/from the nodes, etc. To get started, the user creates a simple configuration file with their account details and a few preferences (i.e. number of machines, instance type, EBS volumes to be mounted, etc). After creating the configuration file and starting the software, a cluster of Linux machines configured with a queuing system (Sun Grid Engine), a nfs shared /home directory, and OpenMPI is created and ready to go out of the box. StarCluster has been targeted for computational research labs and to support classrooms with computational requirements. For research labs, StarCluster is a way for graduate students and faculty to have an on-demand cluster. This means students can access their research with the same hardware and software configurations wherever they go; even if they move to another institution. StarCluster also provides a way for students to experiment with a computational model on a cheap budget before running on local dedicated resources. In the classroom, StarCluster provides a cost effective, reliable way of managing the software configurations for a particular course. It also removes the majority of system administration concerns since the initial setup procedures have been captured in StarCluster and in the user's software configurations (i.e. AMI images, EBS volumes, etc). This means that each semester the exact computing cluster configuration can be recalled with more or less nodes. With this model there is also the benefit that if hardware problems occur it's easy to request a new set of machines in the cloud. Homepage: http://web.mit.edu/starcluster PyPI: http://pypi.python.org/pypi/StarCluster Code: http://github.com/jtriley/StarCluster/tree/master Freshmeat: http://freshmeat.net/projects/starcluster ComputerWorld (AU) Article: http://www.computerworld.com.au/article/316891/open_source_starcluster_shin… -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkqxPY8ACgkQ4llAkMfDcrlXowCfS7xgpItT3mlceVZaPhVDatg3 FGkAoIAsWpHtpTkEszEOyGCOjxKKwjMw =0dCx -----END PGP SIGNATURE-----

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Upcoming Python/Django Classes
by Steve Holden 15 Sep '09

15 Sep '09

Holden Web is please to announce a public "Introduction to Python" class, near Washington DC, on October 13-15, presented by Steve Holden. This is followed, on Friday October 16, by a one-day "Django Master Class" presented by Jacob Kaplan-Moss. Further details are available from http://holdenweb.com/py/training/ regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 Holden Web LLC http://www.holdenweb.com/ Watch PyCon on video now! http://pycon.blip.tv/

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ANN: OpenOpt 0.25 - free Python-written numerical optimization framework with automatic differentiation
by dmitrey 15 Sep '09

15 Sep '09

OpenOpt is cross-platform (Windows, Linux, Mac OS etc) Python-written framework. If you have a model written in FuncDesigner (http:// openopt.org/FuncDesigner), you can get 1st derivatives via automatic differentiation (http://en.wikipedia.org/wiki/ Automatic_differentiation) (some examples here: http://openopt.org/NumericalOptimizationForFuncDesignerModels). License BSD allows to use it in both open- and closed-code soft. For more details see http://openopt.org/ http://forum.openopt.org/viewtopic.php?id=141 Regards, D.

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ANN: FuncDesigner 0.15 - free Python-written framework with automatic differentiation
by dmitrey 15 Sep '09

15 Sep '09

FuncDesigner is cross-platform (Windows, Linux, Mac OS etc) Python- written framework with automatic differentiation (http:// en.wikipedia.org/wiki/Automatic_differentiation). License BSD allows to use it in both open- and closed-code soft. It has been extracted from OpenOpt framework as a stand-alone package, still you can easily optimize models written in FuncDesigner by OpenOpt (some examples here: http://openopt.org/NumericalOptimizationForFuncDesignerModels) For more details see http://openopt.org/FuncDesigner http://forum.openopt.org/viewtopic.php?id=141 Regards, D.

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Moovida Media Center 1.0.7 Release
by Guillaume Emont 15 Sep '09

15 Sep '09

Dear Python users, The Moovida team is happy to announce the release of Moovida Media Center 1.0.7, code-named "Jeepers Creepers". Moovida, formerly known as Elisa, is a cross-platform and open-source Media Center written in Python. It uses GStreamer [1] for media playback and pigment [2] to create an appealing and intuitive user interface. This new release adds experimental support for DVD playback (including from DVD images). It also includes many bug fixes; most notably: Moovida now obtains album covers again (now using Last.fm) and the start-up looks nicer than ever. This release is a lightweight release, meaning it is pushed through our automatic plugin update system. Additionally a windows installer is available for download on our website. As usual, for users already running Moovida, the upgrade to 1.0.7 should be done automatically via the plugin repository. A complete list of the issues fixed can be found at: http://launchpad.net/elisa/+milestone/1.0.7 This is also summarised in the (attached) release notes. Installers and sources can be downloaded from http://www.moovida.com/download/ Bug reports and feature requests are welcome at http://bugs.launchpad.net/elisa/+filebug Have a media-centered day, Guillaume, for the Moovida team [1] http://www.gstreamer.net/ [2] https://code.fluendo.com/pigment/trac

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[ANN] argparse 1.0.1 - Command-line parsing library
by Steven Bethard 14 Sep '09

14 Sep '09

========================= Announcing argparse 1.0.1 ========================= The argparse module provides an easy, declarative interface for creating command line tools, which knows how to: * parse the arguments and flags from sys.argv * convert arg strings into objects for your program * format and print informative help messages * and much more... The argparse module improves on the standard library optparse module in a number of ways including: * handling positional arguments * supporting sub-commands * allowing alternative option prefixes like + and / * handling zero-or-more and one-or-more style arguments * producing more informative usage messages * providing a much simpler interface for custom types and actions Download argparse ================= The argparse homepage has links for source, MSI and single file distributions of argparse: http://code.google.com/p/argparse/ About this release ================== This is a bugfix release. Various small bugs were squashed, most notably the silencing of the Python 2.6 buggy Exception.message warnings. See the news file for detailed information: http://argparse.googlecode.com/svn/tags/r101/NEWS.txt

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Wing IDE 3.2.1 released
by Wingware 14 Sep '09

14 Sep '09

Hi, Wingware has released version 3.2.1 of Wing IDE, our integrated development environment for the Python programming language. This bug fix release includes the following: * Improved support for Snow Leopard (OS X 10.6) * Support for x86_64 Python 2.4+ on OS X * Support for Stackless Python 3.0 and 3.1 * Fixed Stackless Python support on 64-bit Linux * Several other bug fixes; See the change log for details: http://wingware.com/pub/wingide/3.2.1/CHANGELOG.txt *Wing 3.2 Highlights* Version 3.2 of Wing IDE includes the following new features not present in Wing IDE 3.1: * Support for Python 3.0 and 3.1 * Rewritten version control integration with support for Subversion, CVS, Bazaar, git, Mercurial, and Perforce (*) * Added 64-bit Debian, RPM, and tar file installers for Linux * File management in Project view (**) * Auto-completion in the editor obtains completion data from live runtime when the debugger is active (**) * Perspectives: Create and save named GUI layouts and optionally automatically transition when debugging is started (*) * Improved support for Cython and Pyrex (*.pyx files) * Added key binding documentation to the manual * Added Restart Debugging item in Debug menu and tool bar (**) (*)'d items are available in Wing IDE Professional only. (**)'d items are available in Wing IDE Personal and Professional only. The release also contains many other minor features and bug fixes; see the change log for details: http://wingware.com/pub/wingide/3.2.1/CHANGELOG.txt *Downloads* Wing IDE Professional and Wing IDE Personal are commercial software and require a license to run. A free trial license can be obtained directly from the product when launched. Wing IDE 101 can be used free of charge. Wing IDE Pro 3.2.1 http://wingware.com/downloads/wingide/3.2 Wing IDE Personal 3.2.1 http://wingware.com/downloads/wingide-personal/3.2 Wing IDE 101 3.2.1 http://wingware.com/downloads/wingide-101/3.2 *About Wing IDE* Wing IDE is an integrated development environment for the Python programming language. It provides powerful debugging, editing, code intelligence, testing, version control, and search capabilities that reduce development and debugging time, cut down on coding errors, and make it easier to understand and navigate Python code. Wing IDE is available in three product levels: Wing IDE Professional is the full-featured Python IDE, Wing IDE Personal offers a reduced feature set at a low price, and Wing IDE 101 is a free simplified version designed for teaching entry level programming courses with Python. System requirements are Windows 2000 or later, OS X 10.3.9 or later for PPC or Intel (requires X11 Server), or a recent Linux system (either 32 or 64 bit). Wing IDE 3.2 supports Python versions 2.0.x through 3.1.x. *Purchasing and Upgrading* Wing 3.2 is a free upgrade for all Wing IDE 3.0 and 3.1 users. Any 2.x license sold after May 2nd 2006 is free to upgrade; others cost 1/2 the normal price to upgrade. Upgrade a 2.x license: https://wingware.com/store/upgrade Purchase a 3.x license: https://wingware.com/store/purchase -- The Wingware Team Wingware | Python IDE Advancing Software Development www.wingware.com

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[ANN] Intro+Intermediate Python course, San Francisco, Nov 2009
by wesley chun 14 Sep '09

14 Sep '09

(COMPREHENSIVE) INTRO+INTERMEDIATE PYTHON Mon-Wed, 2009 Nov 9-11, 9AM - 5PM If you have been in the Python community for some time, you may be familiar with my introductory (and advanced) courses. Many new Python intro courses have been added over the past few years, so aren't all classes the same? Most introductory courses focus on teaching you the syntax and giving you an idea of a language's flow control and data types. However, this can only get your so far. Although our course may appear to be for those new to Python, it is also perfect for those who have tinkered with it and want to "fill in the gaps" or desire more in-depth formal training. It combines the best of both an introduction to the language as well as covering intermediate language fundamentals that can make you more effective, even as a beginner. We will immerse you in the world of Python in only a few days, showing you more than just its syntax (which you don't really need a book to learn, right?). Knowing more about how Python works under the covers, including the relationship between data objects and memory management, will make you a much more effective Python programmer coming out of the gate. Daily hands-on labs will help hammer the concepts home. Come join me, Wesley Chun, author of Prentice-Hall's bestseller "Core Python Programming," for a comprehensive course coming up this Fall in beautiful Northern California to get up-to-speed with Python as quickly and as in-depth as possible! WHERE: near the San Francisco Airport (SFO/San Bruno), CA, USA INFO: http://cyberwebconsulting.com (click "Python Training") FLYER: http://starship.python.net/crew/wesc/flyerPP1nov09.pdf LOCALS: easy freeway (101/280/380) with lots of parking plus public transit (BART and CalTrain) access via the San Bruno stations, easily accessible from all parts of the Bay Area VISITORS: free shuttle to/from the airport, free high-speed internet, free breakfast and regular evening receptions; fully-equipped suites FREE PREVIEW: at the website below, you will find (and can download) a video clip of a live lesson that was delivered recently to get an idea of the lecture style and interactive classroom environment. FREE PREVIEW 2: Partnering with O'Reilly and Pearson, I delivered a one-hour introductory webcast at Safari Books Online earlier this year called <B><I>What is Python?</I></B>. You will get both my lecture style as well as an overview of the material covered in the course. http://www.safaribooksonline.com/events/WhatIsPython.html (event announcement) http://www.safaribooksonline.com/Corporate/DownloadAndResources/webcastInfo… (free download with registration) See website for costs, venue info, and registration; various discounts available. Hope to see you there! - wesley - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "Core Python Programming", Prentice Hall, (c)2007, 2001 "Python Fundamentals" DVD, Prentice Hall, (c)2009 http://corepython.com wesley.j.chun :: wescpy-at-gmail.com python training and technical consulting cyberweb.consulting : silicon valley, ca http://cyberwebconsulting.com

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ANN: pyftpdlib 0.5.2 released
by Giampaolo Rodola' 13 Sep '09

13 Sep '09

Hi, I'm pleased to announce release 0.5.2 of Python FTP Server library (pyftpdlib). http://code.google.com/p/pyftpdlib === About === Python FTP server library provides a high-level portable interface to easily write asynchronous FTP servers with Python. pyftpdlib is currently the most complete RFC-959 FTP server implementation available for Python programming language. It is used in projects like Google Chromium and Bazaar and included in Linux Fedora and FreeBSD package repositories. === Changes === This new version is mainly a bugfix release, including some important security-related patches. Aside from fixing those bugs, it includes the following enhancements: * A new ThrottledDTPHandler class is available. With this you can limit the speed for downloads and uploads affecting the data channel. Take a look at the throttled_ftpd.py script which shows an example usage: http://code.google.com/p/pyftpdlib/source/browse/trunk/demo/throttled_ftpd.… * A new unix_daemon.py script has been included in the demo directory (contributed by Michele Petrazzo). A complete list of changes including enhancements and bug fixes is available here: http://code.google.com/p/pyftpdlib/wiki/ReleaseNotes05 === More links === * Source tarball: http://pyftpdlib.googlecode.com/files/pyftpdlib-0.5.2.tar.gz * Online docs: http://code.google.com/p/pyftpdlib/wiki/Tutorial * FAQs: http://code.google.com/p/pyftpdlib/wiki/FAQ * RFCs compliance paper: http://code.google.com/p/pyftpdlib/wiki/RFCsCompliance * Issue tracker: http://code.google.com/p/pyftpdlib/issues/list * Mailing list: http://groups.google.com/group/pyftpdlib Thanks, --- Giampaolo Rodola' < g.rodola [at] gmail [dot] com > http://code.google.com/p/pyftpdlib/

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Python-announce-list September 2009