Python is interesting in that list, given how it's at least 4 times as old as all of the other ones in that list. What's behind that? I don't recall any major developments after Python 3, and most of the news behind that one was about its backwards incompatibility (and currently how 2.x isn't about to go anytime soon)
Python's huge popularity in scientific computing fields along with it being widely taught in schools. Notice also that R was on the list, which is obviously due to huge uptick in data science. R has been around for awhile as well.
