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Python Programming Language -- Official Website

http://www.python.org/ Second release candidates for Python 2.6.8, 2.7.3, 3.1.5, and 3.2.3 released Another iteration of release candidates for Python 2.6.8 , 2.7.3 , 3.1.5 , and 3.2.3 have been released for testing. They include several security fixes. EuroPython 2012 will be in Florence, Italy, July 2nd-8th. The Call for Proposals is open until March, 18th.
There are two ways of using Python to run your program - using the interactive interpreter prompt or using a source file. We will now see how to use both of these methods. GNU/Linux and BSD users who have installed Python 3.x alongside Python 2.x may have to start the Python 3.x interpreter by entering python3 at the shell prompt. For Windows users, you can run the interpreter in the command line if you have set the PATH variable appropriately. In order to open the command line in Windows, open the start menu and click 'Run'. http://www.swaroopch.com/notes/Python_en:First_Steps

Python en:First Steps - Notes

Lua Programming language

http://www.lua.org/ Lua wins a Front Line Award 2011 .

about

http://www.lua.org/about.html português · news · quotes · press · uses · authors · contact · license · documentation · versions · thanks Here is a summary of all things Lua: what it is , why you should use it , where it comes from , what it means , and how you can support it . Lua is a powerful, fast, lightweight, embeddable scripting language.

Squeak Smalltalk

http://www.squeak.org/ Squeak 4.3 Released There aren’t any applications bundled with this release. Instead of working on applications to bundle with the image, core developers have been inspired by the Cog virtual machine to look deeply into the image for things they wanted to change. As a result, the image is becoming smaller, tidier, and nimbler. More... Cog, a Squeak JIT VM with 2x-10x Speedup Released
http://squeakbyexample.org/

Squeak by Example

Squeak is a modern open-source development environment for the classic Smalltalk-80 programming language. Despite being the first purely object-oriented language and environment, Smalltalk is in many ways still far ahead of its successors in promoting a vision of an environment where everything is an object , and anything can change at run-time. Squeak by Example , intended for both students and developers, will guide you gently through the Squeak language and environment by means of a series of examples and exercises.