Key differences between Python 2.7.x and Python 3.x (2014)
Python3 is a totally different beast nowadays from Python2.The reason is async/await. It can handle Node.js style event loop / asynchronous code very well -- with uvloop, python 3.5+ is actually faster than Node.js (close to Go).https://magic.io/blog/uvloop-blazing-fast-python-networking/IMHO: after 3.5, we are clearly in the next iteration of the language.