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A Quick, Painless Tutorial on the Python LanguageWhat Are Scripting Languages?
Languages like C and C++ allow a programmer to write code at a very detailed level which has good execution speed (especially in the case of C). But in most applications, execution speed is not important, and in many cases one would prefer to write at a higher level. For example, for text-manipulation applications, the basic unit in C/C++ is a character, while for languages like Perl and Python the basic units are lines of text and words within lines. One can work with lines and words in C/C++, but one must go to greater effort to accomplish the same thing.
The term scripting language has never been formally defined, but here are the typical characteristics:
• Used often for system administration, Web programming, text processing, etc.
• Very casual with regard to typing of variables, e.g. little or no distinction between integer, floating-point or string variables. Arrays can mix elements of different “types,” such as integers and strings. Functions can return nonscalars, e.g. arrays. Nonscalars can be used as loop indexes. Etc.
• Lots of high-level operations intrinsic to the language, e.g. string concatenation and stack push/pop.
• Interpreted, rather than being compiled to the instruction set of the host machine
Why Python?
The first really popular scripting language was Perl. It is still in wide usage today, but the languages with momentum are Python and the Python-like Ruby. Many people, including me, greatly prefer Python to Perl, as it is much cleaner and more elegant. Python is very popular among the developersAjax and Java development made simpler Part 4Create JSF-like components, using JSP tag files
Learn how to use deferred values and deferred methods in custom JSP tag
JavaServer Pages (JSP) and JavaServer Faces (JSF) used to have different variants of the Expression Language (EL). Their unification in JSP 2.1 opened new possibilities, allowing you to use deferred values and deferred method attributes in your custom JSP tags. This article shows how to develop Java™ Web components based on JSP tag files, which are much simpler and easier to build than the JSF components.
JSP and JSF are the most important Java standards that we use today for building Web applications. The philosophies of these two technologies are quite different, however. With JSP, the underlying mechanisms are simple, you control what is happening, and you have the freedom to do things how you want. JSF adds some complexity and processing overhead, but the application model is standardized, which means tools can do more for you, vendors can provide component libraries, and developers can focus on building applications.
As Parts 2 and 3 of this series demonstrated, you don't really need a complex framework for building Web forms. If you like simplicity or if you need to develop a Web application quickly, you can use the JSP Standard Tag Library (JSTL) in combination with tag files and dynamic attributes. You'll be able to customize your components very easily, controlling the HTML output and the HTTP requests.
Using the JSF framework together with a good component library may be the right choice if you areiPassConnect User Guide for Macintosh UserSystem Requirements
Your system needs the following minimum requirements:
• Mac OS 8.8, 9.0, 9.1
• Open Transport 2.6 or later
• Modem or ISDN adapter
Note:Latest versions of Open Transport are recommended and are available from Apple Computer at http:// www.apple.com/support/.
Installing iPassConnect
To begin:
1. Download iPassConnect from your company intranet or service provider web site.
2. Double-click the executable file.
3. Follow the directions on the screen; the installer will create an iPassConnect folder that contains the client software and the necessary configuration files.
Using iPassConnect
There are five basic steps to connect to the Internet using iPassConnect:
• Setting your username, domain name, and password
• Selecting your modem
• Choosing the iPass access number
• Setting the dialer properties
• Connecting to the iPass network
Launch iPassConnect by double-clicking the iPass icon on your desktop.
Setting your Username, Domain Name, and Password and Modem
To begin:
1. From the iPassConnect window, open the Options menu.
2. Select User Info.
3. Fill in your username and domain (i.e., for user@abc.com, user is the username and abc.com is the domain name).
4. To save your password for future sessions, check Save Password. Please note that your service provider or network administrator may have disabled the Save Password feature.
Download pdf iPassConnect User Guide for Macintosh UserTeach Yourself How To Use web-HUMANAn Introduction To The web-HUMAN Systems Physiology Teaching Model. Welcome to HUMAN! The tutorial below allows you, step-by step and screen by screen, to teach yourself how to use web-HUMAN. It does so by via accessing the built-in web-Human 7 help system. In our example below you will learn how to run an exercise simulation. By the end of the example you should be equipped to learn how to run any other HUMAN procedure on your own. We suggest strongly that you follow along in HUMAN itself, step by step.
Step 0 – Startup
To reach the main model screen, on seeing the opening HUMAN screen, simply click the button (see below, lower right).
This brings you to the main screen where you see the experimental navigator (below). The navigator contains all of the of controls that we will be using in this tutorial.
Step 1 – Using Help to Learn How To Run a Procedure (i.e. exercise)
Find the Help section in the navigator (as shown below)
In Help, locate
Tips: and mouse it. You see various procedures (Use Artificial Heart, Dialyze …) . Roll your mouse down to
Exercise the model.
The Help Run Exercise screen appears. (if it doesn't you need to turn your pop-up blocker off)
Download pdf Teach Yourself How To Use web-HUMANBuilding Websites with Joomla! - Tutorial pdfChapter 1: Terms and Concepts A Quick Glance into History Joomla!—How was it Developed? Structure of a CMS Front End and Back End Configuration Settings Access Rights Content Templates Extensions (Components) Workflow Joomla! as Real Estate Joomla! Versions Numbering System of Joomla! Versions Roadmap Joomla! Features Examples of Joomla! Pages Joomla.org Porsche, Brazil PC Praxis, Germany BSI DANS, Norway Team Lesotho, Lesotho Chapter 2: Installation Setting Up the Local Server Environment Windows XAMPP for Windows Linux SUSE (10.x) OpenSUSE Debian/Ubuntu Your Own Server at a Provider On a Virtual Server in the Net Installing Joomla! Selecting a Directory for Installation An Example Local Installation of Joomla! Directory Unpacking Joomla! Web Installer Summary
Chapter 3: A Tour of Your New Homepage Front End Menus Top Menu Main Menu Other Menu Content What is Content? First Page/Front Page The Latest Messages/The Most Often Read Messages Advertising Banner Area Functions Login Area Polling Who is Online? Feeds Back Search Field Decorative Elements Prospects Back End Summary Chapter 4: Customizing Joomla! A Different Look and Feel Modifying the Menu Name Changing the Template Configuration of Joomla! Administration Help Menu Site Menu Global Configuration Site Locale Content Database Server Metadata Mail Cache Statistics SEO (Search Engine Optimization) Language Manager Media Manager Preview Statistics Template Manager Site Templates Install Administrator Templates Install Module Positions Trash Manager User Manager New Menu Manager Customize Existing Menu New Edit Publish Unpublish Move Copy Trash Create a New Menu Content Miscellaneous Components Links Installers Menu Messages Menu Inbox Configuration System MenuCOM+ Design PatternsIn the last five years, design patterns have become extremely important in computer science. The reason they are important is that if you identify distinct common patterns, these patterns can then be re-used. Presented here is another design pattern that explains the evolution of most broad technologies like COM+.
The evolution design pattern is really a meta-pattern, a pattern about patterns. It describes how implementations are often aggregated into designs with a common framework. Once this common framework is established it is then possible to add new functionality across all the implementations. This can best be explained with a couple of pictures. Generally, implementations are originally designed in isolation. Each implementation is like an island
This may seem like a far-fetched example, but in reality, it closely emulates what happens in a software development project. Because each implementation is developed in isolation, it becomes next to impossible for a developer working on one implementation to help on any other implementations. As developers begin turning over (leaving the company for greener ($) pastures), new developers either within the same company or new hires, have a difficult time learning this extremely proprietary implementation. The implementation topples over.
To the rescue, comes the architect who points out that if the implementation used a common framework, then one developer could easily move from implementation to implementation without having to re-learn all from scratch. In this new paradigm, the implementations do not exist as islands, as they are no longer implemented in isolation. Now the implementations are dunesMaya Plugins for RealFlowHere is an explanation of how to work with RealFlow and Maya with the collection of plug-ins provided with RealFlow pack. The RealFlow plug-ins for Maya consist of the following files: RealflowMesher.mll (or RealflowMesher.so for Maya Linux) RealflowMesher.mel sdTranslator.mll (or sdTranslator.so for Maya Linux) sdTranslatorOpts.mel RealflowParticler.mll (or RealflowParticler.so for Maya Linux) RealflowParticler.mel ERealflowEmitterTemplate.mel rf2.bmp (or rf2.xpm for Maya Linux) rflogo.bmp (or rflogo.xpm for Maya Linux) cubos.bmp (or cubos.xpm for Maya Linux) Send Plug-in questions to maya@nextlimit.com Installation
Download pdf Maya Plugins for RealFlowUsage of LDAP in Globus pdfThis short note describes the use of LDAP in the Globus metacomputing toolkit. It answers three questions: What is LDAP? Where is it used? and Why is it used in the Globus metacomputing toolkit?
• Contents
• 1. Short Introduction to Directory Services and LDAP
• 2. Directory Service for a Metacomputing Infrastructure
• 2.1 Initialization
• 2.2 Population
• 2.3 Querying
• 2.4 Application Interfaces
• 3. Globus Components
Download Usage of LDAP in Globus pdfDefeating the Stack Based Buffer Overflow Prevention Mechanism of Microsoft Windows 2003 ServerThis paper presents several methods of bypassing the protection mechanism built into Microsoft’s Windows 2003 Server that attempts to prevent the exploitation of stack based buffer overflows. Recommendations about how to thwart these attacks are made where appropriate. Introduction Microsoft is committed to security. I’ve been playing with Microsoft products, as far as security is concerned, since 1997 and in the past year and a half or two I’ve seen a marked difference with some very positive moves made. In a way they had to. With the public relations crisis caused by worms such as Code Red Microsoft needed to do something to stem the flow of customers moving away from the Windows OS to other platforms.
Microsoft’s Trustworthy Computing push was born out of this and, in my opinion, I think we as consumers are beginning to see the results; or ironically not see them - as the holes are just not appearing as they would if the security push wasn’t there. We have, of course, seen at least one major security hole appear in Windows 2003 Server, this being the DCOM IRemoteActivation buffer overflow discovered by the Polish security research group, the Last Stages of Delirium [http://www.lsd-pl.net]. We will see more; but I am confident that the number of security vulnerabilities that will be discovered in Windows 2003 Server will be a fraction of those found in Windows 2000. Acknowledging that there have been holes found and that, yes, more will come to light inGetting Started with Freeway Shop in a BoxOf the many innovations the Internet has brought us, one of the most visible is online shopping. The advantages for merchants are clear lower overheads in both staff and shop space, provision of greater convenience for their customers, 24/7 and international availability of the store, and the ability to compete on a far more level playing field with larger companies. The spread of internet shopping sites is a testament to all of these.
However, the implementation of an online store has often been difficult, especially for the individual user. A catalogue needs to be presented allowing customers to select products to buy, these product choices must be tracked (usually in the form of the common shopping cart), and all-importantly, a secure way of processing the customer’s payment details is vital.
As is often the case, a demand for services rapidly begets solutions, and there are now numerous companies that offer these services for integration into a website. PayPal, Verisign, and Authorize.Net are well- known companies who provide secure credit card processing services. Many companies who provide shopping carts link with these (and other) credit card processors.
One of the better of the shopping carts is Mal’s e-commerce (http://www.mals-e.com) which provides two packages: a free service offering integration with PayPal, NoChex and Paymate, and a premium service offering integration with VeriSign, Authorize.Net and a wide variety of other credit card processors.
And now, using the power of Freeway’s Actions technology, you can take advantage of Mal’s shopping cart to quickly create your own online store.
