I'm trying to install OpenStack Dashboard following this guide from git: http://wiki.openstack.org/OpenStackDashboard

But when I run this command to sync database:

$ tools/with_venv.sh openstack-dashboard/manage.py syncdb

It returns that:

File "/home/user1/horizon/.venv/local/lib/python2.7/sitepackages/django/db/backends/mysql>    /base.py", line 14, in <module>    

raise ImproperlyConfigured("Error loading MySQLdb module: %s" % e)

django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named MySQLdb

I installed package "python-mysqldb" several times, but it's still raised this error.
When I run:

>>> import MySQLdb

in python interpreter, it's fine!

And I tried to install through easy_install, but the MySQL-python is installed:

$ sudo easy_install MySQL-python

Searching for MySQL-python

Best match: MySQL-python 1.2.3
MySQL-python 1.2.3 is already the active version in easy-install.pth

Using /usr/lib/pymodules/python2.7

Processing dependencies for MySQL-python

Finished processing dependencies for MySQL-python

Here are the content of tools/with_venv.sh

#!/bin/bash

TOOLS=`dirname $0`

VENV=$TOOLS/../.venv

source $VENV/bin/activate && $@

When I run: tools/with_venv.sh it returns nothing.

What's wrong in my case?