python3-nltk: python3-nltk (Natural Language ToolKit) python3-nltk: python3-nltk: Open source Python modules, linguistic data and documentation for python3-nltk: research and development in natural language processing, supporting python3-nltk: dozens of NLP tasks, with distributions for Windows, Mac OSX and python3-nltk: Linux. python3-nltk: python3-nltk: python3-nltk: python3-nltk: python3-nltk: