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Introduction to Python

 A readable, dynamic, pleasant,

 flexible, fast and powerful language Vishwas Kumar 8/22/

Job Trend

Per the indeed.com, percentage growth of Python is 500 times more than its peer Languages. http://www.indeed.com/jobtrends?q=Perl%2C+.Net %2C+Python%2Cjava&l=&relative=

Job in Big Data space

What is Python?

Python is a high-level programming language which is:

 Interpreted: Python is processed at runtime by the interpreter. (Next Slide)

 Interactive: You can use a Python prompt and interact with the interpreter

directly to write your programs.

 Object-Oriented: Python supports Object-Oriented technique of programming.

 Beginner’s Language: Python is a great language for the beginner-level

programmers and supports the development of a wide range of applications.

Interpreters Versus Compilers

• The first thing that is important to understand about

Python is that it is an interpreted language.

• Create source file using text edit
• Use compiler to syntax check and convert source file into

binary 

• Use linker to turn binary files into executable format
• Run the resulting executable format file in the operating

system.

• The biggest difference between interpreted code and

compiled code is that an interpreted application need not be

“complete.”

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• You can test it in bits and pieces until you are satisfied with

the results and put them all together later for the end user to

use.

Python Features

 Easy to learn, easy to read and easy to maintain.

 Portable : It can run on various hardware platforms and has the same interface

on all platforms. 8/22/ By Ripal Ranpara

More Features ..

 Python provides interfaces to all major commercial databases.

 Python supports functional and structured programming methods as well as OOP.

 Python provides very high-level dynamic data types and supports dynamic type

checking.

 Python supports GUI applications

 Python supports automatic garbage collection.

By Ripal Ranpara

 Python can be easily integrated with C, C++, and Java.

Why Python

Easy to read  (^) Python scripts have clear syntax, simple structure and very few protocols to remember before programming. Easy to Maintain  (^) Python code is easily to write and debug. Python's success is that its source code is fairly easy-to-maintain. Portable  (^) Python can run on a wide variety of Operating systems and platforms and providing the similar interface on all platforms. Broad Standard Libraries  Python comes with many prebuilt libraries apex. 21K High Level programming  Python is intended to make complex programming simpler. Python deals with memory addresses, garbage collection etc. internally. 8/22/ By Ripal Ranpara

 Rossum published the first version of Python code (0.9.0) in February 1991 at the CWI (Centrum Wiskunde & Informatica) in the Netherlands , Amsterdam.  Python is derived from ABC programming language, which is a general-purpose programming language that had been developed at the CWI.  Rossum chose the name " Python ", since he was a big fan of Monty Python's Flying Circus.  Python is now maintained by a core development team at the institute, although Rossum still holds a vital role in directing its progress. https://en.wikipedia.org/wiki/Guido_van_Rossum#/media/File:Guido_van_Rossum_OSCON_2006.jpg 8/22/ By Ripal Ranpara

Python Versions

Release dates for the major and minor versions:

 Python 1.0 - January 1994  Python 1.5 - December 31, 1997  Python 1.6 - September 5, 2000  Python 2.0 - October 16, 2000  Python 2.1 - April 17, 2001  Python 2.2 - December 21, 2001  Python 2.3 - July 29, 2003 8/22/ By Ripal Ranpara

• 8/22/
•  Python 3.2 - February 20,
•  Python 3.3 - September 29,
•  Python 3.4 - March 16,
•  Python 3.5 - September 13,
• 8/22/

8/22/ By Ripal Ranpara By Ripal Ranpara