CRC入门指南：Python编程实战

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"《CRC入门Python编程》是一本由CRC Press出版的著作，隶属于Taylor & Francis Group。该书的作者是Gowrishankar S.和Veena A.，它旨在为读者提供一个全面而深入的Python编程入门教程。本书的出版地址位于美国佛罗里达州博卡拉顿，强调了其专业性和学术性。本书的核心内容涵盖了Python编程的基础知识，包括但不限于语法、数据类型、控制结构、函数、模块和包的使用，以及面向对象编程的概念。作为一本教材，它特别适合那些初次接触Python或希望提升Python技能的学习者，无论他们是计算机科学的学生，还是希望将Python作为工具应用于工作中的专业人士。书中特别强调了版权问题，指出所有信息均基于可靠来源，但作者和出版社并不对所有材料的准确性或使用后果承担全部责任。作者和出版社已尽力追踪并确保在复制材料时获得许可，对于未被承认的版权材料，他们鼓励读者反馈，以便在后续重印中进行修正。此外，本书采用了酸碱度较低的环保纸张，符合国际标准，ISBN-13编号为0-8153-9437-2（精装版）。根据美国版权法的规定，除非得到明确授权，否则书中的部分内容不能被无权限制地复制或再生产。通过阅读《CRC入门Python编程》，读者不仅能掌握这门流行的编程语言的基础，还能了解到编程实践中的最佳实践和注意事项，为他们的学习和职业生涯奠定坚实的基础。"

xvPreface

Thedifference between a text le and a binary le is covered. Functions needed

for manipulation of CSV les programmatically are also addressed. This chapter

shows the modules required for navigating and accessing le systems using the

Python programming language.

In Chapter 10, regular expression concepts are introduced. You explore the use of

regular expressions in Python programs through re module.

In Chapter 11, you will look at how Object-oriented paradigm is implemented in

Python programming language. You will look at creating classes and objects.

Various Object-oriented concepts like encapsulation, inheritance and polymor-

phism are explained. This chapter also introduces the concept of operator over-

loading which plays a pivotal role in program development. These concepts

transcend a particular programming language and are important to the success of

an Object-oriented programming solution.

In Chapter 12, you begin with Functional programming features of Python program-

ming language. You will see how to handle common data formats like JSON and

XML. Modules like NumPy and pandas, required to develop Data Science solu-

tions, are also touched upon in this chapter. Altair data visualization library for

Python is introduced in this chapter.

In the Appendix-A, steps involved in debugging a Python program are listed.

Who Should Read This Book?

This book is for beginners to Python programming who are interested in learning the

basics of Python programming language.

Availability of Source Code

As you work through the programming examples given in the book, you can either type

the programs manually or download the programs from https://github.com/gowrishan

karnath/Introduction_To_Python_Programming. You are strongly encouraged to run

each of these programs and compare the results obtained in your system to those shown

in the text. By doing so, you will learn the language and its syntax.

Software Requirements

All the code in the book works with Python 3.6 version or above. Since f-strings are used

throughout the book which was introduced in Python 3.6 version, you need to have

Python interpreter 3.6 or above for the code to work as it is. Install the latest version of

64-bit Anaconda Distribution with support for Python 3.6 or above. If you want to make

the code work with Python 3.1 to 3.5 versions, use str.format() statements within the print()

function instead of f-strings. The rest of the statements within the code remains the same

and the code should work ne. It is highly recommended that you use the latest version of

PyCharm Community Edition to execute the programs. You will gain valuable insights in

to Python programming language by using this IDE, no matter whether you are a beginner

or an experienced professional.

xvii

Acknowledgment

Writing a book requires the contribution of many individuals. I have been blessed with the

support of many people who have encouraged me all along the way to ensure this project

reached the stage of completion. I have tried to acknowledge every one of those of whom

I’m conscious of and hope others will forgive me for lapses in my memory.

I would like to express deep appreciation to my co-author Mrs. Veena A., Assistant

Professor, Dr.AIT, who was absolutely wonderful to work with in crafting this book.

I would like to thank the Management and Principal of Dr. Ambedkar InstituteofTech-

no logy (Dr.AIT), Bengaluru; Sri S. Mariswamy (The Honourable Chairman, PVPWT),

SriA.R.Krishnamurthy (The Honourable Secretary, PVPWT), Sri P. L. Nanjundaswamy

(Trustee, PVPWT), Sri S. Shivamallu (Trustee, PVPWT), Dr. M. Mahadeva (Trustee,

PVPWT) and Dr. C. Nanjundaswamy (Principal, Dr.AIT) for their positive inuence, kind

support and encouragement during this project.

I wish to thank the following members for providing direction on the develop-

ment of this book; Dr. H. N. Jagannatha Reddy (Registrar, Visvesvaraya Technological

University), Dr. Subir Kumar Sarkar (Professor, Jadavpur University), Dr. T. G.Basavaraju

(Professor, Government SKSJTI), Dr. C. N. Ravi Kumar (Principal, Mysore College

of Engineering and Management), Dr. Basavaraj Anami (Principal, KLE Institute of

Technology), Dr. G. N. Krishna Murthy (Principal, B.N.M. Institute of Technology),

Dr. H.S.Arvinda (Professor, JSS Academy of Technical Education), Dr.D.H.Manjaiah

(Professor, Mangalore University), Dr. H. S. Guruprasad (Professor, BMS College of

Engineering), Dr.S.N.Chandrashekara (Professor, C Byregowda Institute of Technology),

and Mr. Sharath Malve (Network Architect, Honeywell India).

I am lucky to work with wonderful colleagues at Dr.Ambedkar Institute of Technology,

Bengaluru, India. In one way or another, they all have inuenced me and my teaching

which helped in shaping this book. I thank them all and would like to add particular men-

tion of these; Dr. Siddaraju (Professor, Dr.AIT), Dr. Meenakshi M. Bhat (Professor, Dr.AIT),

Mrs. Asha (Associate Professor, Dr.AIT), Mrs. Leena Giri G (Associate Professor, Dr.AIT),

Mr. Shamshekhar S. Patil (Associate Professor, Dr.AIT), Mr. A. H. Srinivasa (Associate

Professor, Dr.AIT), Mr. D. Suresha (Associate Professor, Dr.AIT), Mr. G. Harish (Associate

Professor, Dr.AIT), Dr. S. Prakash (Associate Professor, Dr.AIT), Mr. M. V. Praveena

(Assistant Professor, Dr.AIT) and Mrs. Lavanya Santhosh (Assistant Professor, Dr.AIT).

Here is the list of developers who have enthused me a lot towards programming: Wes

McKinney (Creator, pandas library), Scott Hanselman (Principal Program Manager,

Microsoft), Armin Ronacher (Creator, Flask Web Framework), Kenneth Reitz (Creator,

Requests library), Jake Vanderplas (Co-creator, Altair library), Brian Granger (Co-founder,

Project Jupyter), Adrian Holovaty (Co-creator, Django Web Framework), Hadley

Wickham(Chief Scientist, RStudio), David Robinson (Chief Data Scientist, DataCamp), Jon

Skeet (Developer, Google) and Mara Averick (Tidyverse Dev Advocate, RStudio).

We owe a deep debt of gratitude to Mrs. Aastha Sharma, Senior Commission Editor,

CRC Press/Taylor & Francis, and Ms. Shikha Garg, Editorial Assistant, CRC Press/Taylor &

Francis, for keeping faith in us even when deadlines slipped and for keeping our book on

the track by responding to our questionnaires promptly. We are grateful to various

xviii Acknowledgment

reviewers whoreviewed this book and provided feedback and corrections. Your sugges-

tions have signicantly improved this book. I like to thank Mrs. Shannon Stanton, the pro-

duction manager from Lumina Datamatics for her untiring effort in reproducing various

drafts of the manuscript before sending the book to print. We also express our thanks to

all the people at CRC Press/Taylor & Francis who contributed their efforts to the produc-

tion of this book.

I cannot forget the unending love and support given by my parents, Pushpalatha S. Nath

and Dr. S. Surendranath. It is from them I learned the virtue of patience and that never-

say-die attitude. Without their proper guidance I would have become lost in due course

of my life. What I am today is only because of them. My sisters, Ashwini S. Nath and Dr.

Shalini S. Nath, are the ones with whom I shared all the ner moments of my growing

years. You all are my inspiration and motivation for continuing to improve my knowledge

and move my career forward.

I now know that writing a book is a colossal task that keeps a person away from family

activities. No words can describe the amount of sacrice my wife Roopa K. M. and son

Yashmith G. Nath have done during the preparation of this book and those silent tears

that have been shed for sacricing the family time together. Their cheerful smile, devoted

accompaniment and constant love kept me moving forward.

I would also like to thank all my friends and relatives who in some way have helped me

to achieve this task.

Finally, I would like to thank the Almighty God for giving me that inner strength to

complete this project.

Dr. Gowrishankar S.

“Introduction to Python Programming” was a delight and a brainstorming kind of a proj-

ect. Making this book a reality takes many dedicated people and it is my great pleasure to

acknowledge their contributions.

I am grateful to Dr. Gowrishankar S., who rst conceived the idea of writing this book

and kept faith in me and gave me an opportunity to be the co-author of this book.

I wish to acknowledge the direct and indirect contributions and assistance of various

colleagues and friends with whom I have collaborated. I would like to thank our publisher

Taylor & Francis/CRC Press, for accepting our book proposal. I would like to thank our

team at Taylor & Francis/CRC Press especially Aastha Sharma, Senior Commissioning

Editor and Shikha Garg, Editorial Assistant for the excellent collaboration, follow-up and

timely replies to emails. I also thank the production team as without them this project

would not have achieved what it is now.

I anticipate the readers will enjoy the book and welcome any suggestions and feedback

for the improvement of this book.

Veena A.

xix

Authors

Dr. Gowrishankar S. is currently working as AssociateProfes-

sorin the Department of Computer Science and Engineering

at Dr.Ambedkar Institute of Technology, Bengaluru, India.

He earned his PhD in Engineering from Jadavpur University,

Kolkata, India in 2010 and MTech in Software Engineering and

BE in Computer Science and Engineering from Visvesvaraya

Technological University (VTU), Belagavi, India, in the years

2005 and 2003 respectively.

From 2011 to 2014 he worked as senior research scientist and

tech lead at Honeywell Technology Solutions, Bengaluru, India.

He has been awarded with the Technical and Innovation Award

and Individual Excellence Award for his contribution towards

successful delivery of projects at Honeywell Technology Solutions.

He has published several papers in various reputed International Journals and Conferences.

He is serving as editor and reviewer for various prestigious International Journals. He is

also member of IEEE, ACM, CSI and ISTE.

He has delivered many keynote addresses and invited talks throughout India on a variety

of subjects related to Computer Science and Engineering. He was instrumental in organizing

several conferences, workshops and seminars. He has also served on the panel of number

of Academic Bodies of Universities and Autonomous Colleges as a BOS and BOE member.

His current research interests are mainly focused on Data Science, including its technical

aspects as well as its applications and implications. Specically, he is interested in the applica-

tions of Machine Learning, Data Mining and Big Data analytics in Healthcare. He writes articles

on his personal blog at http://www.gowrishankarnath.com. His Twitter handle is @g_s_nath.

Mrs. Veena A. is currently working as Assistant Professor in the

Department of Computer Science and Engineering at

Dr.Ambedkar Institute of Technology, Bengaluru, India, since

January 2016.

She completed her MTech in Computer Science and

Engineering from PESIT, Bengaluru, India and BE in Information

Science and Engineering from Visvesvaraya Technological

University (VTU), Belagavi, India, in the years 2011 and 2004

respectively.

From 2004 to 2006 she worked as Software Developer at Envision

Network Technologies, Bengaluru, India, and worked as member

technical staff from 2006 to 2007 at CDAC, Pune, India.

She has published several papers in various reputed

International Journals and Conferences.

Her current research interests are Machine Learning, Data Mining and Big Data

Analytics in Healthcare.

She is currently pursuing her PhD in Computer Science and Engineering from VTU,

Belagavi, India.

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