× Python Introduction What is Python Python Features Python History Python Applications Python Install Python Path Python Example Execute Python Keywords Constant Variable Statements & Comments Python I/O and Import Operators UnaryBinaryTernary Unary Operators Unary Minus Binary Operators Arithmetic Operators Assignment Operators Relational Operators Logicaloperators Bitwise Operator Ternary Operators Control Statements in Python conditonal Statements IF if else Else If Nested if Switch For loop Nested For Loop While Loop Nested while Loop Unconditonal Statemets Continue Break Pass FUNCTIONS Python Function Function Argument Python Recursion Anonymous Function Python Modules NATIVE DATATYPES Python List Python Numbers Python Tuple Python String Python Set Python Dictionary OOPS PRINCIPALS Encapsulation Class Variable Method Object Or Instance CreationMethod Calling OOPS Syntax And Explanation DATA ABSTRACTION Constructor Inheritance 1.Single or simple Inheritance 2.Multilevel Inheritance 3.Hierarchical Inheritance 4.Multiple Inheritance 5.Hybrid Inheritance Operator Overloading File Operation Python Directory Python Exception Python - Multithreading Python - Database Access Python - CGI Python - Reg Exp Python - Date Python - XML Processing Python - GUI
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Python Introduction

Program:
Program is a Collection of Statements or set of instructions used to perform a specific operation.

Software:
Collection of programs is known as “Software or Computer Based Application”, which can be used to operate computer or various devices. Computer based application or software’s can be developed to using a special language is called Programming Language.
Example:
C
C++
Java
.Net
Python etc……

Classification of computer based application:
Computer based application are classified into two groups (types)
1. Desktop Applications.
2. Network Based Applications.

Desktop Application:
This is an application which can be executed in a single computer by the single user at a time.
Example: OS Software
Music players
Some gaming software’s etc….

In general desktop applications developed using “C or C++ “languages.
The main disadvantage with desktop application is no sharability that means it is not possible to share the desktop application from one computer to another computer. To overcome above disadvantage network based applications are introduced.

Network Based Application:
If any application supports network concept is known as Network based application.
If any application is shared or used a multiple computers by the multiple user at a time is known as Network based applications.
Example:
Facebook,Gmail,Online Banking ,.. etc

Network:
Inter connection of computers known as a network .The main advantage with the network is sharing of data application. Network is classified into following types based on distance.
1.LAN
2.MAN
3.WAN
4.Internet
5.Intranet
6.Extranet

Local area network (LAN):
Inter connection of computers with in a building is known as Local area network.

Metropolitic area network (MAN):
Inter connection of computers with in a city is known as Metro politic area network.

Wide area network (WAN):
Inter connection of computers wide range of area(Group of MAN'S).

Internet:
Inter connection of computers which on existing on globe is known internetwork or internet.

Intranet network:
Inter connection of computers within an organization is known as Intra network.

Extranet Network:
Inter connection of computers between different organization is known as Extra network.


In General any Network application can be developed using java or.Net or python.

Example: Hospital based application.
Banking applications
All websites like yahoo Google, FaceBook, etc….


Python is a simple, easy to learn, powerful, high level and object-oriented programming language.
Python is an interpreted scripting language also. Guido Van Rossum is known as the founder of python programming.
Introduction to Python
It covers the topics such as python programming, features, history, versions, how to install, example, how to execute, variables, keywords, identifiers, literals, operators and comments.
Control Statement
The control statement in python covers if statement, for loop, while loop, do while loop, break statement, continue statement and pass statement.
Python Strings
The string chapter in python provides the full functionality to work on strings such as accessing string, applying string operators, details of slice notation, applying different functions etc.
Python Lists
The list chapter in python covers the data structure part such as storing data in list, accessing data, manipulating data etc.
Python Tuples
A sequence of immutable objects is known as tuple, it covers accessing tuple, adding tuple, replacating tuple, updating tuple etc.
Python Dictionary
The python dictionary provides details about dictionary operations.
Python Functions
It provides a list of python functions with its implementations.
Python Files I/O
How to write data into file and read data from file in python?
Python Modules
What is python module? What are the usage of modules?
Python Exceptions
It explains the errors and exceptions in python.

What is Python
Python is an object-oriented, high level language, interpreted, dynamic and multipurpose programming language.
Python is easy to learn yet powerful and versatile scripting language which makes it attractive for Application Development.
Python's syntax and dynamic typing with its interpreted nature, make it an ideal language for scripting and rapid application development in many areas.
Python supports multiple programming pattern, including object oriented programming, imperative and functional programming or procedural styles.
Python is not intended to work on special area such as web programming. That is why it is known as multipurpose because it can be used with web, enterprise, 3D CAD etc.
We don't need to use data types to declare variable because it is dynamically typed so we can write a=10 to declare an integer value in a variable.
Python makes the development and debugging fast because there is no compilation step included in python development and edit-test-debug cycle is very fast.

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