Also why python 2.7? Python 2.7 does not include asyncio which is absolutely awesome to use. It can allow doing multiple different things at the same time. So, it is and will be a good thing to upgrade. Note: a lot of things since 2.7 and 3.x was removed (some exception classes included). But after the change you should be fine. Note print from python 2 is a function in python 3.x.

Not only that but 2.x would reach EOL on about 2020 and with it security updates for it would close. All the more reasons to use 3.6 when it is released officially.