Populating nested items in a Treeview

While ttk.Treeview can be used as a regular table, it may also contain hierarchical structures. This is shown as a tree where items can be expanded to see more nodes of the hierarchy.

This is useful to display the results of recursive calls and several levels of nested items. In this recipe, we will take a look at a common scenario that fits with this kind of structure.

Getting ready

To illustrate how to recursively add items in a ttk.Treeview widget, we will create a basic filesystem browser. Expandable nodes will represent folders, and once opened, they will show the files and folders that they contain:

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