An Open source Linux "meta-structural" editor
Author: Alexander V. Lukyanov Homepage:https://leoeditor.com/ Source code: https://github.com/leo-editor/leo-editor Family: CuaFamily LinuxEditorFamily OutlinerFamily License: Open source Platform: Linux Windows Mac OS/X
So this text editor allows you to manipulate outlines of information as well as regular text. It is 100% Python.
Screenshot: