To clarify: NLTK develop branch is compatible with Python 3.2+ for more than a year. NLTK 3.0a4 (http://www.nltk.org/nltk3-alpha/ http://www.nltk.org/nltk3-alph

To clarify: NLTK develop branch is compatible with Python 3.2+ for more than a year. NLTK 3.0a4 (http://www.nltk.org/nltk3-alpha/ http://www.nltk.org/nltk3-alpha/) is not released as NLTK 3.0 because of some pending API changes, not because of Python 3 compatibility issues.