Difference is at the beginning. When I started using Python I absolutely loved that stdlib covered almost everything I thought I could need. These days packages I use mostly come from elsewhere, but at the beginning it was great.

I'm fine with Javascript development these days because I built my fundamentals years ago. I am not sure how comfortable I would be otherwise and when I meet people who are where I used to be, they often look lost.

I am also thinking about learning Android development and don't really know where to begin.