You are strongly encouraged by the Python powers that be to move to 3, and I have only in the past few months begun to agree with them, and that is because some serious standard libraries like asyncio are now only available on 3. It's (finally) the future. However a big caveat is that if you're learning Python, most of the sample code you will find on the web will be 2-based and will not work well under 3. It's not so much the print statement, but range() works subtly differently too now (return a generator not a list - too subtle for beginners to properly understand in my view) and unicode strings can break older code too. Just be aware of these things and move to 3 is my (51/49) advice, but this is a controversial point and others will have differing points of view.