Python (a Computer Language)

• As we know that in order to communicate with a computer system, we need a language. This language may be C, C++, Java, Python or any other computer language. Here we will discuss PYTHON.
• Python was developed by Guido Van Rossum in 1991 when he was working with National Research Institute of Mathematics and Science in Netherland.
• Python was named from a comedy series “Monty Python’s Flying Circus” telecasted on BBC.
  Python can be used as OOL and POL.
• Actually, Python is inspired by two languages –
  1. ABC language which was an optional language of BASIC language.
  2. Modula-3
• Python is very easy learning language as most of its syntax seems to be like in English.
• It is possible to get desired output in minimum instructions.
• It’s an Interpreted language.
• It’s a complete language in itself and it is very easy to download and install.
• It is a platform independent and portable language.
• It is Free Open Source.
• It is possible to develop various Apps with Python like–
  * GUI Apps
  * Web Apps
  * Games
  * DBMS Apps
  * Scripting etc.

Limitations-

There are few limitations in Python which can be neglected because of its vast usage.

• It is not a Fast Language.
• Libraries are very less.
• It is week in Type binding.
• It is not easy to convert in some other language.

HOW TO INSTALL?

• Python can be downloaded from www.python.org.
• It is available in two versions-
  * Python 2.x
  * Python 3.x
• We will download 3.6.5 here.
• Open www.python.org on any browser.

• SCROLL DOWN.

• Click on Downloads.

• Click on Python3.6.5.

• Download installer as per your Operating System (32 bit or 64 bit).
• Now run the downloaded setup, it will look like-

• Click on Install now.
• You can install python in this manner.
• After installation, we will open Python IDLE 3.6.5.

• On opening Python IDLE 3.6.5, a window will be opened which will look like-

HOW TO WORK?

• We can work in Python in two ways-

• Both have their own style of working.
• Interactive mode works like a Command Interpreter as Shell Prompt works in DOS Prompt or Linux..
• ( >>>) we can execute any instruction of Python with this.
• We can run a complete program by writing in Script mode.

Interactive mode

Script mode