Python - (Free)
Python is a object-oriented programming language that promises a lot when it comes to software development.
Python is a programming language that lets you work more quickly and integrate your systems more effectively. It runs on Windows, Linux / Unix, Mac OS X, and has been ported to the Java Virtual Machine and. NET.
Known to be a structured, solid and multi language, object oriented programming language Python can be used for many kinds of software development. It is often used by computer science teachers to discover the language constructs for object-oriented programming. It is very easy to learn and to use and it includes extensive standard libraries.
Like Ruby or Perl, Python knows a great success especially as it is made ​​freely available to programmers since it is distributed as Open Source. Finally, it is particularly used as a scripting language to automate simple tasks tedious and repetitive due to its simplicity in terms of development and operation.