As a JS developer I think python is strong than ever before , it can use not only in web but also in data analysis. The coming Big Data trend can lead extensive use of python.
The LIGO Scientific Collaboration announced that they use python when in their first direct detection of gravitational waves.
https://www.reddit.com/r/IAmA/comments/45g8qu/we_are_the_lig...
And they are also make some lib of python they used open source in github.
https://github.com/ligo-cbc
It is excited , isn't it ? Thanks to these news , I have decided to continue learning python since I break it off two years ago.