Why do people like any language? In the case of Python it wasn't that the syntax was the best syntax ever and the way it did object oriented programming was the best. It was that it came with so much pre-existing functionality ("batteries included").

So now there is an improved version called Python 3. OK, now we get into a discussion of why it is improved. That causes the always divisive discussion of how people should be programming.

IMHO the biggest problem with Python 3 is the Unicode stuff. The world seems to be moving toward just using UTF-8 for everything. The approach taken by Python 3 seems pointlessly complex and inefficient at this point in time.