Setting up the editor skeleton
Our first goal is to implement the broad visual elements of the text editor. As programmers, we have all used text editors to edit code. We are mostly aware of the common GUI elements of a text editor. So, without much of an introduction, let's get started.
The first phase implements the Menu, Menubutton, Label, Button, Text and Scrollbar widgets. Although we'll cover all of these in detail, you might find it helpful to look at the widget-specific options in the documentation of Tkinter maintained by its author Frederick Lundh at http://effbot.org/tkinterbook/. You can also use the interactive shell, as discussed in Chapter 1, Meet Tkinter.
You might also want to bookmark the official documentation page of Tcl/Tk at http://www.tcl.tk/man/tcl8.6/TkCmd/contents.htm. This site includes the original Tcl/Tk reference. While it does not relate to Python, it provides a detailed overview of each widget and is a useful reference. Remember that Tkinter is just a wrapper...
