An Introduction to Python
Python is currently available in source or as a Linux binary from ftp.python.org. Various modules have already been developed and become part of the standard Python Library. To mention just a few: support for strings, regular expressions, posix, sockets, threads, multimedia, cryptography, STDWIN, Internet/WWW, Expect, and a large number of other contributions, are submitted periodically.
Python is extensible. If you can program in C, you can add a new low-level module to the interpreter. We are currently doing this at our company for a distributed database system. The Python interpreter will be the high-level command language for many of the applications.
In addition to Linux, Python runs on several other platforms: OS/2, Windows, Macintosh, and many flavors of Unix. And like Linux, all of these versions are freely available and distributable.
The documentation for Python is of a very high quality, written by Guido van Rossum, the creator of Python. Four separate user manuals in postscript format are available at the Python ftp site (see sidebar “Python Information”). These documents have also been converted to HTML and Microsoft help file formats. A Python FAQ, quick reference guide, and testimonials are also available. O'Reilly and Associates also intends to publish Programming Python early next year.
Python has its own active newsgroup (comp.lang.python) as well as a mailing list which receives the same messages as the newsgroup. To subscribe to the mailing list, send mail to email@example.com. Various Python special interest groups have been formed: Matrix-SIG, GUI-SIG, and Locator-SIG.
Finally, The Python Software Activity (“PSA”) has been established to foster the common interests of the Python development community. The PSA, unlike the GNU Project, does not do the actual development of software (although many of its members probably do), but rather acts as a clearinghouse for Python software modules developed by others. It also hosts workshops and related activities to help promote the use of the Python language. Additional information about the PSA may be obtained by visiting the Python home page: www.python.org.
Special thanks to Mark Lutz, Aaron Watters, the PSA, and, of course, Guido van Rossum.
Jeff Bauer has spent the past 16 years developing health care software. His current project involves interfacing pen-based computers with Unix systems to track clinical information.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
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With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide