On 2019-02-19 14:40, Vincent Predoehl wrote: > I have PostgreSQL 11.1 installed on MacOS X Mojave and I used brew to do the install. It appears that the extension plpython was not included in the default installation and I would like to know how to install it. Apparently, it was removed here: https://github.com/Homebrew/homebrew-core/pull/36074 If you don't care about understanding that, maybe try this alternative tap: https://github.com/petere/homebrew-postgresql -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services