Together with parent comment, this is exactly how I feel every time I use something that is not C (I do mostly embedded). Like: ok, I can use a slice here, but what is a slice? what thing is it doing that I don't know? where's the catch? how does it look like in memory? is it calling a function when I access it? is it being copied or referenced?. And so on...
Coming from a hardware education and moving to an almost strictly Python career, I simply cannot enjoy the full fanciness of Python as I'm constantly worried about what weird things it's probably doing in the background. Particularly shaken after an incident of creating objects and appending them to a list, and at the end of the loop the list was the last item n times.
