The long awaited python 3.3 version is finally here! There are quite lot improvements and additions:
explicit unicode literals - revived from the python2 series, the intent here is supposed to be easier porting from pythom2 to python3.
yield from expression - something that will ease writing of coroutines
ChainMap collection - in collections module of course, see docs
ipaddress module - a wonderful addition for working with IP addresses and networks, with support for IPv6 as well, see
... and many more, see the release report
. Also, a healthy discussion on