ImportError：Ubuntu 11.04 服务器上的 django 项目中没有名为 mysql.base 的模块

Question

我按照 Django Book 中的步骤进行操作，并到达作者解释的部分我建立了一个django项目来使用数据库。我选择了mysql。

我在 settings.py 中的设置是：

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.
    }
}

当尝试启动服务器时，会打印以下消息：

Validating models...

Traceback (most recent call last):
  File "/home/me/workspace/mysite/src/mysite/manage.py", line 14, in <module>
    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 <module>
    from django.contrib.contenttypes.generic import GenericForeignKey, GenericRelation
  File "/usr/local/lib/python2.7/dist-packages/django/contrib/contenttypes/generic.py", line 7, in <module>
    from django.db import connection
  File "/usr/local/lib/python2.7/dist-packages/django/db/__init__.py", line 27, in <module>
    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

我用谷歌搜索了一下，发现如果您使用旧版本的 MySQLd，则可以打印此消息。所以我确保我获得了最新版本。并在交互式 python shell 中测试了导入。没关系。

还有其他建议吗，为什么这不起作用？

我正在开发一个新安装的 Ubuntu 11.04 版本（Windows 7 中的 Wubi），如果这很重要的话。 =)

Answer 1

正确的数据库设置是'django. db.backends.mysql'。