What You Will Learn Implement the tools provided by Tkinter to design beautiful GUIs Discover cross-platform development through minor customizations in your existing application Visualize graphs in real time as data comes in using Tkinter's animation capabilities Use PostgreSQL authentication to ensure data security for your application Write unit tests to avoid regressions when updating code Book Description Tkinter is a lightweight, portable, and easy-to-use graphical toolkit available in the Python Standard Library, widely used to build Python GUIs due to its simplicity and availability. This book teaches you to design and build graphical user interfaces that are functional, appealing, and user-friendly using the powerful combination of Python and Tkinter. After being introduced to Tkinter, you will be guided step-by-step through the application development process. Over the course of the book, your application will evolve from a simple data-entry form to a complex data management and visualization tool while maintaining a clean and robust design. In addition to building the GUI, you'll learn how to connect to external databases and network resources, test your code to avoid errors, and maximize performance using asynchronous programming. You'll make the most of Tkinter's cross-platform availability by learning how to maintain compatibility, mimic platform-native look and feel, and build executables for deployment across popular computing platforms. By the end of this book, you will have the skills and confidence to design and build powerful high-end GUI applications to solve real-world problems. Authors Alan D. Moore Alan D. Moore is a data analyst and software developer who has been solving problems with Python since 2006. He's developed both open source and private code using frameworks like Django, Flask, Qt, and, of course, Tkinter, and contributes to various open source Python and Javascript projects. Alan maintains a blog by the name alandmoore, where he writes mainly about Python, Linux, free software, and his home studio recordings. Alan lives in Franklin, Tennessee, where he works for the county government, and with his wife, Cara, raises a crew of children who are just as geeky as their dad. Table of Contents Chapter 1: Introduction to Tkinter Chapter 2: Designing GUI Applications with Tkinter Chapter 3: Creating Basic Forms with Tkinter and ttk Widgets Chapter 4: Reducing User Error with Validation and Automation Chapter 5: Planning for the Expansion of Our Application Chapter 6: Creating Menus with Menu and Tkinter Dialogs Chapter 7: Navigating Records with Treeview Chapter 8: Improving the Look with Styles and Themes Chapter 9: Maintaining Cross-Platform Compatibility Chapter 10: Creating Automated Tests with unittest Chapter 11: Improving Data Storage with SQL Chapter 12: Connecting to the Cloud Chapter 13: Asynchronous Programming with Thread and Queue Chapter 14: Visualizing Data Using the Canvas Widget Chapter 15: Packaging with setuptools and cx_Freeze