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The IDLE User Interface

So far, we’ve seen how to run Python code with the interactive prompt, system command lines, icon clicks, and module imports and exec calls. If you’re looking for something a bit more visual, IDLE provides a graphical user interface for doing Python development, and it’s a standard and free part of the Python system. It is usually referred to as an integrated development environment (IDE), because it binds together various development tasks into a single view.[9]

In short, IDLE is a GUI that lets you edit, run, browse, and debug Python programs, all from a single interface. Moreover, because IDLE is a Python program that uses the tkinter GUI toolkit (known as Tkinter in 2.6), it runs portably on most Python platforms, including Microsoft Windows, X Windows (for Linux, Unix, and Unix-like platforms), and the Mac OS (both Classic and OS X). For many, IDLE represents an easy-to-use alternative to typing command lines, and a less problem-prone alternative to clicking on icons.