Python 3.0 is a major change from the Python 2 series, and the first release that is intentionally backwards-incompatible.

Python developers on Wednesday released the final version of Python 3.0, a major reworking of the programming language that is incompatible with the Python 2 series. Python is widely used for web ...

Major Python update makes break with past Python 3.0 is a major change from the Python 2 series, and the first release that is intentionally backwards-incompatible.