I think its more than just because of the available libraries. I think that industry has just predominantly preferred Python. Python is a really rich modern language, it might be quirky, but so is every single language you can name. Nothing is quite as quirky as JavaScript though, maybe VB6 but that's mostly dead, though slightly lingering.
Mind you I've programmed in all the mentioned languages. ;)
Mind you I've programmed in all the mentioned languages. ;)