Interesting, particularly as Facebook and Twitter are not particularly known for their use of Python. Google uses Python extensively, and I'm not sure about Spotify.<p>Could this be due to the popularity of Python among data-scientists?
Not sure why is it the most demanded, but i know quite a lot of people who started learning programming with Python. It is the second most recommended language after JS to start programming, this view is also reinforced by many MOOC as well.
What do you think is so special about Python that it appeared four times in the list of 100 "most sought-after employers in the World", as LinkedIn put it, as one of the top three skills in demand?