Book Image

Python GUI Programming with Tkinter.

By : Alan D. Moore
Book Image

Python GUI Programming with Tkinter.

By: Alan D. Moore

Overview of this book

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.
Table of Contents (23 chapters)
Title Page
Copyright and Credits
Packt Upsell

FTP using ftplib

While HTTP and REST APIs are the current trend in client-server interactions, it's not unusual for businesses to rely on older, time tested, and sometimes obsolete technology to implement data transfers. ABQ is no exception: in addition to the REST upload, you need to implement support for ABQ corporate's legacy system that relies on FTP.

Basic concepts of FTP

File Transfer Protocol, or FTP, dates back to the early 1970s, predating HTTP by almost 20 years. Nevertheless, it's still commonly used by many organizations to exchange large files over the internet. FTP is considered somewhat obsolete in many circles due in part to the fact that it transmits data and credentials in clear text, though SSL-encrypted variants of FTP are also available.

Like HTTP, FTP clients send requests containing plain text commands similar to HTTP methods, and the FTP server returns a response packet containing header and payload information.

There are, however, many significant differences between...