This book covers Python 3 programming fundamentals together with 2D and 3D plotting, numerical library numpy, file/Sqlite database operations and tkinter graphical user interface development (i. e.

developing desktop applications) in Python. The first part of the book includes Chapters 1 to 9 where the fundamentals of the Python programming language are explained.

The book starts with the installation of Python 3 programming environment and the simplest "Hello World" example. Then, all the fundamental concepts such as variables, conditional statements, loops, functions, modules and object-oriented programming are given.

The second part of the book consists of Chapters 10 and 11 which cover file and Sqlite database operations in detail. The third part of the book teaches the basics of the numpy numerical library and the matplotlib plotting library in Chapters 12 and 13.

The reader will be able to plot data saved in numpy arrays in 2D or 3D after completing this part. The last part of the book is about graphical user interface (GUI) development using the tkinter library in Chapter 14.

Layout management and all the frequently used tkinter widgets are given with detail and working examples. .