PYTHON SETUP

KEYWORDS
IDENTIFIERS
VARIABLES
DATATYPES
OPERATORS

CONTROL STATEMENTS
	CONDITIONAL
	LOOPING
	TRANSFER

DATA STRUCTURES
	STRINGS
	LIST
	TUPLE	
	DICTIONARY
	SETS
	STACKS
	QUEUES
	LINKEDLIST

FUNCTIONS AND ADVANCED FUNCTIONS

OOPs ==> OBJECT ORIENTED PROGRAMMING
	CLASS, OBJECT, METHOD, CONSTRUCOR
	INHERITANCE, ENCAPSULATION, POLYMORPHISM ETC.

FILE HANDLING
EXCEPTION HANDLING

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INTRODUCTION TO PYTHON:
=======================
GUIDO VAN ROSSUM, 1989
1991

VERSIONS:
	VERSION-1: 1991
	VERISON-2: 2000
	VERSION-3: 2008

3.12.6

ROOTS FOR PYTHON:
	C, C++ : FUNCTIONAL APPROACH
	C++ : OBJECT ORIENTED
	PERL, SHELL SCRIPTING : SCRIPTING


WHAT IS THE PYTHON?
===================
1) FUNCTIONAL PROGRAMMING LANGUAGE
	function ==> block of operation => named
		take inputs
		process inputs
		output

len("string") ==> 6

2) Object Oriented Programming 

High Level Programming languages
	if, else, import etc.
	three types:
		1) structural : C
		2) object oriented: Python, C++, Java etc.
		3) object based: VB Script

OOPs ==> Object Oriented Programming System
	Class, Object, Methods, Constructors, 
		encapsulation, polymorphism, abstraction etc.

3) Scripting Language.

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Why python?
===========

1) Easy Syntax
	complex application with minimal code.
	anyone can understand and read python easily.
2) Open source
3) freeware

==================================
Features of Python:
==================
1) High Level Programming language
2) General Purpose Programming Language
	Desktop apps : notepad, excel, calculator etc.
	Web Apps: gmail, youtube etc.
	Distributed Apps ==> banking apps
		apps ====> apps

	ex: phonepe
		checking balance
			upi <================> your bank app/union bank apps
3) Easy programming language
4) Scripting language
5) Object Oriented Programming language
6) Dynamically Typed Programming Language

Statically ==> C, C++
Strongly ==> Java
Dynamically

ex: int a = 10;	correct
int b = 1.23; correct ==> b = 1

int a = 10;	 correct
int a = 1.23; incorrect