ln -fs /usr/local/Cellar/icu4c/63.1/bin/icu-config /usr/local/bin/icu-config
https://stackoverflow.com/questions/52309891/import-or-symbol-not-found-error-with-polyglot-when-pyicu-and-icu4c-installed-co https://stackoverflow.com/questions/50217214/import-error-for-icu-in-mac-and-ubuntu-although-pyicu-is-installed-correctly