Python for biologists. 29 common beginner Python errors on one page. A few times a year, I have the job of teaching a bunch of people who have never written code before how to program from scratch.
The nature of programming being what it is, the same error crop up every time in a very predictable pattern. I usually encourage my students to go through a step-by-step troubleshooting process when trying to fix misbehaving code, in which we go through these common errors one by one and see if they could be causing the problem. Biology Stack Exchange.
DIYBio.