python的 MySQLdb无法connect的问题

出现以下错误,有可能是mysql服务器未安装，在ubuntu可以使用apt-get install mysql-server来安装mysql服务器。

>>> import MySQLdb

>>> cxn =MySQLdb.connect(user='root')

Traceback (mostrecent call last):

File "<stdin>", line 1, in<module>

File"/usr/lib/pymodules/python2.6/MySQLdb/__init__.py", line 81, inConnect

return Connection(*args, **kwargs)

File "/usr/lib/pymodules/python2.6/MySQLdb/connections.py",line 170, in __init__

super(Connection, self).__init__(*args,**kwargs2)

_mysql_exceptions.OperationalError:(2002, "Can't connect to local MySQL server through socket'/var/run/mysqld/mysqld.sock' (2)")