The Well-Grounded Python Developer: How the pros use Python and Flask

Book title  
Inner title  
Copyright  
Dedicated  
About the Authors  
About the Reviewer  
Acknowledgements  
Preface  
Code Bundle and Coloured Images  
Piracy  
Table of Contents  

Chapter 1: tkinter Introduction  
Introduction  
Structure  
Objectives  
Introduction to tkinter  
Basic Python GUI program  
Some standard attributes of Python tkinter GUI  
Dimensions  
highlightthickness  
padX, padY  
wraplength  
height  
underline  
width  
Colors  
activebackground  
background  
activeforeground  
foreground  
disabledforeground  
highlightbackground  
selectbackground  
selectforeground  
Fonts  
By creating a font object  
By using tuple  
Anchors  
Placing widget position when anchor = N  
Placing widget position when anchor = S  
Placing widget position when anchor = E  
Placing widget position when anchor = W  
Placing widget position when anchor = NE  
Placing widget position when anchor = NW  
Placing widget position when anchor = SE  
Placing widget position when anchor = SW  
Placing widget position when anchor = CENTER  
Relief styles  
Bitmaps  
Cursors  
Python tkinter geometry management  
pack()  
grid()  
place()  
Geometry method in tkinter  
Conclusion  
Points to remember  
Questions  

Chapter 2: Inbuilt Variable Classes for Python tkinter GUI Widgets  
Introduction  
Structure  
Objectives  
Inbuilt variable classes  
StringVar()  
BooleanVar()  
IntVar()  
DoubleVar()  
GUI creation using classes and objects  
Conclusion  
Points to remember  
Questions  

Chapter 3: Getting Insights of Button Widgets in tkinter  
Introduction  
Structure  
Objectives  
tkinter Button Widget  
Events and bindings  
event type  
tkinter Checkbutton widget  
tkinter Radiobutton widget  
tkinter OptionMenu widget  
Conclusion  
Points of remember  
Questions  

Chapter 4: Getting Insights of Input Widgets in tkinter  
Introduction  
Structure  
Objectives  
tkinter Entry widget  
Validation in the Entry widget  
tkinter Scrollbar widget  
Scrollbar attached to Listbox  
Scrollbar attached to Text  
Scrollbar attached to Canvas  
Scrollbar attached to Entry  
tkinter Spinbox widget  
tkinter Scale widget  
tkinter Text widget  
tkinter Combobox Widget  
Conclusion  
Points to remember  
Questions  

Chapter 5: Getting Insights of Display Widgets in tkinter  
Introduction  
Structure  
Objectives  
tkinter Label Widget  
tkinter Message Widget  
tkinter MessageBox Widget  
showinfo()  
showwarning()  
showerror()  
askquestion()  
askokcancel()  
askyesno()  
askretrycancel()  
Conclusion  
Points of remember  
Questions  

Chapter 6: Getting Insights of Container Widgets in tkinter  
Introduction  
Structure  
Objectives  
tkinter Frame Widget  
tkinter LabelFrame Widget  
tkinter Tabbed/Notebook Widget  
tkinter PanedWindow widget  
tkinter Toplevel widget  
Conclusion  
Points of remember  
Questions  

Chapter 7: Getting Insights of Item Widgets in tkinter  
Introduction  
Structure  
Objectives  
tkinter Listbox widget  
Conclusion  
Points of remember  
Questions  

Chapter 8: Getting Insights of tkinter User Interactive Widgets  
Introduction  
Structure  
Objectives  
tkinter Menu widget  
tkinter Menubutton widget  
tkinter Canvas widget  
Conclusion  
Points to remember  
Questions  

Chapter 9: Handling File Selection in tkinter  
Introduction  
Structure  
Objectives  
Handling file selection in tkinter  
Conclusion  
Points of remember  
Questions  

Chapter 10: Getting Widget Information and Trace in tkinter  
Introduction  
Structure  
Getting widget information  
Trace in tkinter  
trace_add()  
trace_remove()  
trace_info()  
Points to remember  
Questions  

Chapter 11: UserLogin Project in tkinter GUI Library with sqlite3 Database  
Introduction  
Structure  
Objectives  
GUI interaction with sqlite3 database  
Displaying a GUI application  
Conclusion  
Points to remember  
Questions  

Index  
Back title  

If you’re new to Python, it can be tough to understand when, where, and how to use all its language features. This friendly guide shows you how the Python ecosystem fits together, and grounds you in the skills you need to continue your journey to being a software developer.

Inside The Well-Grounded Python Developer you will discover:

• Building modules of functionality

• Creating a well-constructed web server application

• Integrating database access into your Python applications

• Refactor and decoupling systems to help scale them

• How to think about the big picture of your application

The Well-Grounded Python Developer builds on Python skills you’ve learned in isolation and shows you how to unify them into a meaningful whole. It helps you understand the dizzying array of libraries and teaches important concepts, like modular construction, APIs, and the design of a basic web server. As you work through this practical guide, you’ll discover how all the bits of Python link up as you build and modify a typical web server application—the kind of web app that’s in high demand by modern businesses.

About the technology

As a new programmer, you’re happy just to see your code run. A professional developer, on the other hand, needs to create software that runs reliably. It must be fast, maintainable, scalable, secure, well designed and documented, easy for others to update, and quick to ship. This book teaches you the skills you need to go from Python programmer to Python developer.

About the book

The Well-Grounded Python Developer shows you why Python, the world’s most popular programming language, is a fantastic tool for professional development. It guides you through the most important skills, like how to name variables, functions, and classes, how to identify and write a good API, and how to use objects. You’ll also learn how to deal with inevitable failures, how to make software that connects to the internet, core security practices, and many other professional-grade techniques.

What's inside

• Create a web application

• Connect to a database

• Design programs to handle big tasks

About the reader

For experienced beginners who want to learn professional-level skills.