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Basics of Python
Programming
Learn Python in 30 days (Beginners approach)
2nd Edition
Dr. Pratiyush Guleria
www.bpbonline.com
ii
Second Revised and Updated Edition 2024
First Edition 2020
Copyright © BPB Publications, India
ISBN: 978-93-55516-404
All Rights Reserved.
No part of this publication may be reproduced, distributed or transmitted in
any form or by any means or stored in a database or retrieval system, without the prior written
permission of the publisher with the exception to the program listings which may be entered,
stored and executed in a computer system, but they can not be reproduced by the means of
publication, photocopy, recording, or by any electronic and mechanical means.
LIMITS OF LIABILITY AND DISCLAIMER OF WARRANTY
The information contained in this book is true to correct and the best of author’s and publisher’s
knowledge. The author has made every effort to ensure the accuracy of these publications, but
publisher cannot be held responsible for any loss or damage arising from any information in
this book.
All trademarks referred to in the book are acknowledged as properties of their respective
owners but BPB Publications cannot guarantee the accuracy of this information.
www.bpbonline.com
Kup książkę
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Dedicated to
Almighty God
My beloved parents
and
My beloved family
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About the Author
Dr. Pratiyush Guleria
has a Ph.D. in Computer Science. He has done an M.Tech in
Computer Science and is a gold medalist at Himachal Pradesh University, Shimla, India.
He has a consistent track record in academics throughout his career. He has also qualified
for the State Level Eligibility Test (SLET). Dr. Pratiyush Guleria has more than 15+ years of
experience in the IT industry and academics. He has research papers published in various
peer-reviewed international journals and conferences. He has been a member of the
Technical Program Committee and a reviewer for journals and international conferences.
His research interests include Data Mining, Machine Learning, and Web Technologies.
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About the Reviewers
Jyant,
a passionate Data Enthusiast with a Postgraduate degree in Artificial
Intelligence from Great Lakes, embarked on his IT journey with
Accenture,
where
he honed his skills in SAP BODS, SQL, PYTHON, and Excel, catering to US-based
retail clients. Later, at
Impact Analytics,
he delved into a diverse tech stack, including
R, Python, SQL, AWS, GCP, GUROBI, and more, refining his interpersonal skills.
During his tenure at
Sapient,
Jyant led teams in delivering a spectrum of products,
from price optimization to movie recommendations and Credit Scoring Models,
employing a versatile toolkit encompassing Python, R, Advance SQL, Superset,
Airflow, Git, Azure, Pyspark, and others.
Currently, as a leader at
Zscaler,
Jyant spearheads the development of two pivotal
models: an attrition model and an innovative chatbot powered by AWS LEX. His
expertise extends to LLm, Rag, and ReAct Prompt integration, alongside utilizing
SQLAlchemy to enhance the chatbot’s capabilities.
Throughout his journey, Jyant has consistently demonstrated a knack for
addressing multifaceted challenges, from crafting Regression models for promotion
optimization to wielding Seaborn and Matplotlib for comprehensive EDA, and even
applying CNN and RESNET50 for image attribute tagging, NLP for data extraction,
creating sophisticated Movie Recommendation Engines using Lightfm Neural
Network models, as well as crafting Price Optimization and Credit Scoring Models
using intricate bank and retail data.
Peyush Kumar
is an experienced IT professional, with a distinguished career that
spans over 25 years. Graduating with a B.Tech in Computer Science from Punjabi
University, his journey has been marked by impactful contributions to major tech
players, including
Zensar, Wipro,
and
HCLTech.
This includes employment in global
settings while residing for an extended period in the USA. Beyond showcasing
prowess as a skilled programmer, Peyush proved himself as a proficient manager,
steering software development teams towards success.
Peyush’s enthusiasm extends beyond coding; he is a passionate educator. His teaching
legacy is witnessed in the diverse array of students, spanning from high school
enthusiasts to seasoned graduates, who have benefitted from his insightful guidance.
Residing in Noida with his family, Peyush balances his love for technology with an
unwavering commitment to family values.
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