I left Python learning because of Python 2 vs 3
Python 2 and Python 3 are close enough that learning on the earlier version will give you a very solid grounding for migrating to 3 when it becomes more mainstream.
Abandoning a language just because it's transitioning to a new version is a bit silly, frankly.
I wanted To learn how to program for the first time.
Because i`m mainly practice on IT and Security, I choose to start with Python.
But, As is started to learn Python 3, I came to realize that  Non of the modules I wanted to use were ported to Python 3, and even Django (one of the main reasons I wanted to learn python) and IronPython does not support python 3.
From my view, Python is not recommended for newbies because 1) Python 2 is about to be "out of future support" (the 2.7 is the last one). and 2) the Python 3 is not supported by the all important modules and frameworks...
So - someone who wants to learn python from scratch and not wasting time on a version that is about to be out of support (2), as no any good options (nor 2 or 3 version)...
Please correct me if I`m wrong (and before I move to C# :) ).