When informed people consider the duties of a system administrator, building GUI applications probably does not come to mind at all. However, there are times when you will need to build a GUI application, or by building a GUI app your life will be easier than if you didn’t. We’re using GUI in the broad sense here to mean both traditional GUI applications using toolkits such as GTK and QT, as well as web-based applications.
This chapter will focus on PyGTK, curses, and the Django web framework. We’ll start off with the basics of GUI building, then move on to creating a fairly simple application using PyGTK, then the same app using curses and Django. Finally, we’ll show you how Django can, with very little code, work as a fairly polished frontend to a database.
When you write a console utility, you often expect it to run and
complete without user intervention. This is definitely the case when
scripts are run from
at, anyway. But when you write a GUI utility,
you expect that a user will have to provide some input in order to make
things happen and exercise your utility. Think for a moment about your
experiences with GUI applications such as web browsers, email clients, and
word processors. You run the application somehow. The application performs some sort of initialization, perhaps loading some configuration and putting itself into some known state. But then, in general, the application just waits for the user to do something. Of ...