ImportError: Ingen modul som heter mysql.base, i django-prosjekt på Ubuntu 11.04-server

Jeg følger trinnene i Django Book og kom til den delen der forfatterne forklarte hot wo satte opp et django-prosjekt for å bruke en database. Jeg valgte mysql.

Mine innstillinger i settings.py er:

DATABASES = {
    'default': {
        'ENGINE': 'mysql',               # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
        'NAME': 'mydatabase',                  # Or path to database file if using sqlite3.
        'USER': 'myname',                # Not used with sqlite3.
        'PASSWORD': 'mypassword',        # Not used with sqlite3.
        'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
        'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
    }
}

Når du prøver å starte serveren, skrives følgende melding ut:

Validating models...

Traceback (most recent call last):
  File "/home/me/workspace/mysite/src/mysite/manage.py", line 14, in 
    execute_manager(settings)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 442, in execute_manager
    utility.execute()
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 379, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 191, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 220, in execute
    output = self.handle(*args, **options)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/runserver.py", line 67, in handle
    self.run(*args, **options)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/runserver.py", line 78, in run
    self.inner_run(*args, **options)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/runserver.py", line 88, in inner_run
    self.validate(display_num_errors=True)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 243, in validate
    from django.core.management.validation import get_validation_errors
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/validation.py", line 3, in 
    from django.contrib.contenttypes.generic import GenericForeignKey, GenericRelation
  File "/usr/local/lib/python2.7/dist-packages/django/contrib/contenttypes/generic.py", line 7, in 
    from django.db import connection
  File "/usr/local/lib/python2.7/dist-packages/django/db/__init__.py", line 27, in 
    connection = connections[DEFAULT_DB_ALIAS]
  File "/usr/local/lib/python2.7/dist-packages/django/db/utils.py", line 81, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/usr/local/lib/python2.7/dist-packages/django/db/utils.py", line 23, in load_backend
    return import_module('.base', backend_name)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
ImportError: No module named mysql.base

Jeg googlet litt og fant ut at denne meldingen kunne skrives ut hvis du bruker en eldre versjon av MySQLd. Så jeg sørget for at jeg fikk den siste versjon. Og testet importen i et interaktivt pythonskall. Det er greit.

Noen andre forslag, hvorfor dette ikke fungerer?

Jeg jobber med en nyinstallert Ubuntu 11.04 Versjon (Wubi i Windows 7), hvis det betyr noe. =)