[hanginghyena]

Brilliant!

I may wind up stealing this as an alternative test for more advanced programmers; everything here can be done using the Python Standard library.

And kudos to those of you who suggested in-memory storage vs. writing it out to a table.

[asimuvPR]

Weird thing is I was writing the code in my head a I read the instructions. Hard to believe people would fail that but years of hiring have shown its true.