Installation ===================================== For stable version, try:: pip install pythainlp For developer version, try:: pip install https://github.com/PyThaiNLP/pythainlp/archive/dev.zip Note for Windows: marisa-trie wheels can be obtained from https://www.lfd.uci.edu/~gohlke/pythonlibs/#marisa-trie , then install it with pip, for example: `pip install marisa_trie‑0.7.5‑cp36‑cp36m‑win32.whl`