Problem scenario
You want to test some Python scripting or write a basic program to warm up before a coding interview. You only have access to a Windows machine (e.g., at a hotel "business center"). You cannot install Python on the laptop. How do you do some Python coding?
Solution
As long as you have access to the internet, browse to this site: https://www.onlinegdb.com/
(For a more serious development project, try Heroku.com.)