- An ordered dictionary type
- New unittest features including test skipping, new assert methods, and test discovery
- A much faster io module
- Automatic numbering of fields in the str.format() method
- Float repr improvements backported from 3.x
- Tile support for Tkinter
- A backport of the memoryview object from 3.x
- Set literals
- Set and dictionary comprehensions
- Dictionary views
- New syntax for nested with statements
- The sysconfig module