Code review comment for lp:~allenap/python-oops-tools/use-psycopg2-2.4.1

The attempt to merge lp:~allenap/python-oops-tools/use-psycopg2-2.4.1 into lp:python-oops-tools failed.Below is the output from the failed tests.

find . -type f -name '*.py[co]' -exec rm -f {} \;
rm -f bin/buildout
rm -f src/oopstools/settings.py
bzr clean-tree --unknown --force
bzr up download-cache
python bootstrap.py \
  --setup-source=ez_setup.py \
  --download-base=download-cache/dist --eggs=eggs
Download error: [Errno 101] Network is unreachable -- Some packages may not be found!
Download error: [Errno 101] Network is unreachable -- Some packages may not be found!
Generated script '/home/pqm/pqm-workdir/oops-tools/bin/buildout'.
bin/buildout configuration:db-port=5433
Develop: '/home/pqm/pqm-workdir/oops-tools/.'
Getting distribution for 'psycopg2==2.4.1'.
An error occured when trying to install psycopg2 2.4.1.Look above this message for any errors thatwere output by easy_install.

W: line 3 [buildbot-staging]: Deprecated key 'location' used
I: This option will be removed in the future; please update your configuration
W: line 1 [pqm]: Deprecated key 'location' used
I: This option will be removed in the future; please update your configuration
W: line 2 [pqm-oops-tools]: Deprecated key 'location' used
I: This option will be removed in the future; please update your configuration
I: [pqm-oops-tools chroot] Running command: "cd /home/pqm/pqm-workdir/oops-tools && make check"
Nothing to delete.
+N dist/psycopg2-2.4.1.tar.gz
All changes applied successfully.
Updated to revision 50 of branch http://bazaar.launchpad.net/~launchpad/lazr-source-dependencies/download-cache
Error: pg_config executable not found.

Please add the directory containing pg_config to the PATH
or specify the full executable path with the option:

    python setup.py build_ext --pg-config /path/to/pg_config build ...

or with the pg_config option in 'setup.cfg'.
error: Setup script exited with 1
While:
  Installing.
  Getting section filetemplates.
  Initializing part filetemplates.
  Getting distribution for 'psycopg2==2.4.1'.
Error: Couldn't install: psycopg2 2.4.1
make: *** [bin/buildout] Error 1