See the release notes of Python 3.0: https://docs.python.org/3.0/whatsnew/3.0.html#removed-syntax https://docs.python.org/3.0/whatsnew/3.0.html#removed-syntax

See the release notes of Python 3.0: https://docs.python.org/3.0/whatsnew/3.0.html#removed-syntax https://docs.python.org/3.0/whatsnew/3.0.html#removed-syntax The removals were actually an easier pill to swallow than the numerous subtle changes in behavior introduced by the big, deep switch to Unicode. I'm over it now, but that was painful!