Mercury 1.2 FAIL

To Josh and Greg,

I know Mercury 1.2 is still in development, so I thought you'd want some error feedback. I've gone to launchpad and followed the following instructions:

To get up and running on Trunk:

Start with a fresh installation of Ubuntu 10.04LTS
apt-get install bzr fabric
bzr branch lp:pantheon /opt/pantheon
cd /opt/pantheon/fab

The last command should one of the following:
fab initialize:vps=aws (for instance-based AWS servers)
fab initialize:vps=ebs (for ebs-based AWS servers - experimental)
fab initialize:vps=default (for all other Pantheon servers)

I'm trying to install using a test server, so I chose the following command:

fab initialize:vps=default

When I run this command (which I have to do as root btw) I get an error:

ImportError: No module named MySQLdb

The routine appears to stop at this point, so rebooting the machine doesn't accomplish anything. I searched the pantheon directories and I can't find a file named MySQLdb.

Is this a programming error? If so, is there a workaround??

Here's the total output from running 'fab initialize:vps=default'::

xxx@test:/opt/pantheon/fab$ fab initialize:vps=default
Traceback (most recent call last):
File "/usr/lib/pymodules/python2.6/fabric/main.py", line 363, in main
commands.update(load_fabfile(fabfile))
File "/usr/lib/pymodules/python2.6/fabric/main.py", line 108, in load_fabfile
imported = __import__(os.path.splitext(fabfile)[0])
File "/opt/pantheon/fab/fabfile.py", line 3, in
from configure import *
File "/opt/pantheon/fab/configure.py", line 3, in
import update
File "/opt/pantheon/fab/update.py", line 9, in
from pantheon import status
File "/opt/pantheon/fab/pantheon/status.py", line 1, in
import drupaltools
File "/opt/pantheon/fab/pantheon/drupaltools.py", line 6, in
import MySQLdb
ImportError: No module named MySQLdb