I applied online and received a coding challenge that lasted for an hour.

I'm going to assume I failed the coding challenge because I had no idea what was going on. It's not a typical data structures and algorithms question; rather, they give you a web app with basic Etsy features and then present an hour to debug it.

That's a pretty cool approach, and I think it's better for evaluating your competence in the workplace. However, the catch is that I had never used Flask before, so I spent a solid chunk of time learning Flask just to remotely understand the bugs I was encountering.

If you know Flask and Python, you should be fine. But if you don't, you are pretty much screwed.

Damn it, Etsy is a cool company and it was definitely a cool challenge, if only I had had the knowledge about Flask.

Python and Flask debugging web app