NoSuchModuleError：无法加载插件：sqlalchemy.dialects：mysql

Question

作为标题，当我使用sqlalchemy create_engine连接mysql时会发生错误。

提前致谢。

>>> from sqlalchemy import create_engine
>>> engine = create_engine('mysql://root:root@127.0.0.1/jedoreclub')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib64/python2.6/site-packages/sqlalchemy/engine/__init__.py", line 387, in create_engine
    return strategy.create(*args, **kwargs)
  File "/usr/lib64/python2.6/site-packages/sqlalchemy/engine/strategies.py", line 56, in create
    entrypoint = u._get_entrypoint()
  File "/usr/lib64/python2.6/site-packages/sqlalchemy/engine/url.py", line 139, in _get_entrypoint
    cls = registry.load(name)
  File "/usr/lib64/python2.6/site-packages/sqlalchemy/util/langhelpers.py", line 218, in load
    (self.group, name))
sqlalchemy.exc.NoSuchModuleError: Can't load plugin: sqlalchemy.dialects:mysql