You have just landed a new job as a hero Python developer. Your first task is simple. Make a little tweak to an existing application. To your horror you discover the code is a mess written in the past 10 years by many different people who have just started their career as Python programmers. They all have already move on. They left behind the code, but it has no tests and no documentation. Oh and by the way, the company depends on the application. What do you do now? Fight or flight? In this talk you will hear about a couple of ways to fight with such a beast.
Slides available here: http://il.pycon.org/2016/static/sessions/gabor-szabo.pdf