Can Open-Data-Catalog be run on MacOSX? I'm trying to use it with Postgres.app, and getting this error:
$ createlang plpython
createlang: language installation failed: ERROR: could not open extension control file "/Applications/Postgres.app/Contents/MacOS/share/extension/plpython.control": No such file or directory
It appears that the source of your problem is with OS X, but with the Postgress.app pre-built application.
OpenDataCatalog makes use of Postgres functions written in plpython. Here is the section from the plpython documentation that explains why it is probably not working in Postgress.app
Note: Users of source packages must specially enable the build of PL/Python
during the installation process. (Refer to the installation instructions for more
information.) Users of binary packages might find PL/Python in a separate subpackage.
It might be worth talking to the maintainers of Postgres.app to see if they are planning to add support for plpython.
BTW, I got this same error on Ubuntu 12.04. But it just turned out that postgresql-plpython-9.1 was not installed. Maybe just add this to the dependency list?
fixes #20 - add postgresql-plpython-9.1
add apt-get update
add git to apt-get install