003 Python-Docs-The-Packer
https://docs.python.org/3/library/tkinter.html#the-packer

003 TCL-tk-Docs-pack-
http://tcl.tk/man/tcl8.6/TkCmd/pack.htm

007 Playground.py-Completed-Code
https://repl.it/@appbrewery/day-27-playground

009 TCL-tk-Docs-Entry-
http://tcl.tk/man/tcl8.6/TkCmd/entry.htm

010 Tkinter-Widget-Example-Code-Palette
https://repl.it/@appbrewery/tkinter-widget-demo

011 Day-27-End-Code
https://repl.it/@appbrewery/day-27-end

012 Course-Fixes-Report-an-Issue
https://forms.gle/fpNEQooYBX25gcG67