Python 3.0 appears, strangles 2.x compatibility
Found on The Register on Wednesday, 03 December 2008
Python 3.0 is out now. The latest version makes some major changes to the popular programming language, and it's incompatible with version 2.x releases.
"The language is mostly the same, but many details, especially how to build-in objects like dictionaries and strings work, have changed considerably, and a lot of deprecated features have finally been removed. Also, the standard library has been reorganized in a few prominent places."
It will break a lot. Python is used in a lot of big projects, and updating that source isn't done in a week or two.