For the python screening I was given a series of fairly basic python questions. Only a minute in some cases to respond. It is hard to tell the format they want you to answer in since it is all automated. If you have not done the real basics of python in a while I recommend reviewing the W3 quizzes as a refresher.

The first stage was a video interview where the job role was discussed I talked about my background and asked questions. It was relatively short. The second stage is the technical interview.