I have installed postgresql on a mac using the 'one click' installer (postgresql-9.1.1-1-osx.dmg). I then tried to import the python language but I get the error:
create language plpythonu; ERROR: could not access file "$libdir/plpython2": No such file or directory
Can you help me in figuring out what is wrong? (I.e. where can I get plpython2?) These are some settings that might be relevant: