强悍的类定义

>>> class Config(object):
...     def __init__(self, **kw):
...         self.__dict__.update(kw)
...

那么:

>>> cfg = Config(host = '127.0.0.1', port = '8080')
>>> print "%s:%s"%(cfg.host, cfg.port)
127.0.0.1:8080

更变态版本:

>>> def Config(**kw):
...     obj = type('Config', (), kw)()
...     return obj
...
 
>>> c = Config(host = '127.0.0.1', port = '8080')
>>> c.host, c.port
('127.0.0.1', '8080')

来自: http://blog.csdn.net/lanphaday/archive/2008/09/09/2905877.aspx