$ brew link python
Linking /usr/local/Cellar/python/3.7.2_2... Error: Permission denied @ dir_s_mkdir - /usr/local/Frameworks
$ sudo mkdir /usr/local/Frameworks
$ sudo chown $(whoami):admin /usr/local/Frameworks
$ brew link python
Linking /usr/local/Cellar/python/3.7.2_2... 1 symlinks created