New Learning of Python by Practical Innovation and Technology

By Sudhir Pathania

This book is basically designed for those who are interested in learning new things. Now this is the time of technology and Everyone is connected with it. It is affecting everyone's life. As we have seen that this world is changing due to technology, Computer and their languages playing an important role in this age. Python is a part for this great role. Python is the starting point of Artificial Intelligence. Everyone who is interested for change in society and their life, Python will definitely going to help them.

• Language: English
• Publisher: Sudhir Pathania
• Release date: Sep 13, 2020
• ISBN: 9781005234041

Book preview

Python

for

Beginners

See the source image

Index

History of Computer Languages

Introduction to Python

Features of Python

Basic Syntax

Python Variables

Python Keywords

Python Operator

Python Array

IF, ELSE, ELIF NESTED IF Statement

While Loop

Python OOPS

Python Strings.

Def Main Function

Lambda function

Absolute Values

Map Function

ACKNOWLEDGEMENT

First and foremost, praises and thanks to the God, the Almighty, for His showers of blessings throughout my work to complete this successfully. I would like to express my deep and sincere gratitude to Mr. Dinesh Kumar (Mentor of Winnovation Education Services Pvt.Ltd India) who motivate and have deeply inspired me.  I would also like to thank Mr. Sarbarinder Singh (Director Winnovation Education Services Pvt.Ltd) for his friendship, empathy, and support.

I am extremely grateful to my parents for their love, prayers, caring and sacrifices for educating and preparing me for this book. I am very much thankful to my wife and my daughter and son for their love, understanding, prayers and continuing support to complete this work. Also, I express my thanks to my sisters, brother, sister in law and brother in laws for their support and valuable prayers.

SUDHIR KUMAR PATHANIA

History of Computer Languages

Ever since the invention of Charles Babbage’s difference engine in 1822, computers have required a means of instructing them to perform a specific task. This means is known as a programming language. Computer languages were first composed of a series of steps to wire a particular program; these morphed into a series of steps keyed into the computer and then executed; later these languages acquired advanced features such as logical branching and object orientation. The computer languages of the last fifty years have come in two stages, the first major languages and the second major languages, which are in use today.

In the beginning, Charles Babbage’s difference engine could only be made to execute tasks by changing the gears which executed the calculations. Thus, the earliest form of a computer language was physical motion. Eventually, physical motion was replaced by electrical signals when the US Government built the ENIAC in 1942. It followed many of the same principles of Babbage’s engine and hence, could only be programmed by presetting switches and rewiring the entire system for each new program or calculation. This process proved to be very tedious.

In 1945, John Von Neumann was working at the Institute for Advanced Study. He developed two important concepts that directly affected the path of computer programming languages. The first was known as shared-program technique (www.softlord.com). This technique stated that the actual computer hardware should be simple and not need to be hand-wired for each program. Instead, complex instructions should be used to control the simple hardware, allowing it to be reprogrammed much faster.

The second concept was also extremely important to the development of programming languages. Von Neumann called it conditional control transfer (www.softlord.com). This idea gave rise to the notion of subroutines, or small blocks of code that could be jumped to in any order, instead of a single set of chronologically ordered steps for the computer to take. The second part of the idea stated that computer code should be able to branch based on logical statements such as IF (expression) THEN, and looped such as with a FOR statement. "Conditional control