https://www.w3schools.com/python/trypython.asp?filename=demo_ref_keyword_del2
W3Schools Tryit Editor
The W3Schools online code editor allows you to edit code and view the result in your browser
tryiteditor
https://www.saildart.org/TRYIT%5BDEN,LMM%5D
TRYIT[DEN,LMM] - www.SailDart.org
tryitdenlmmwww