Python

• A high-level programming language
• Created by Guido Van Rossum (Benevolent Dictator for Life)
• First released in 1991
• Python interpreters are available for many Operating Systems

Why Python is popular:

• It is free to use and distribute
• Its code is readable, reusable and maintainable
• Its program runs on every major platform which is currently in use
• It has strong library support from Text pattern matching to networking
• It can communicate with COM, .NET frameworks

Python is powerful as:

• It allows dynamic typing and has powerful library  
• No need to declare variable
• It allows automatic allocation and garbage collection
• It supports classes, modules and exceptions
• It gives interactive programming experience

Python is used for:

• System programming
• Building GUI applications
• Internet scripting
• Database programming
• Game, Robotics programming

Some organizations which uses Python:

• Google: for web search system
• YouTube: for video sharing service
• JP Morgan, Chase, UBS: for financial market forecasting
• NASA, FermiLab: for scientific programming
• NSA: for cryptographic and intelligence analysis

You can get Python source code, binaries and documentation:

• Python official website: www.python.org
• Documentation website: www.python.org/doc

Once the Python is installed, the program development can be done by using the built-in Python Integrated Development and Learning Environment (IDLE).

In case, if you have not install any Python development tool on your machine, you can use the online Python shells. Some of the online Python shells are:

• https://www.python.org/shell/
• https://ideone.com/
• https://repl.it/languages/python3