Python:如何转储mechanize.Browser实例的cookie？

我正在学习如何使用mechanize,一个Python模块来自动化与网站的交互.

一个功能是自动处理cookie.我想从mechanize.Browser实例中转储cookie以进行调试,但我似乎无法自己解决这个问题.

>>> from mechanize import Browser
>>> b = Browser()
>>> b._ua_handlers['_cookies'].cookiejar
mechanize._clientcookie.CookieJar[]
>>> b.open('http://google.com')
response_seek_wrapper at 0xb7a922ccL whose wrapped object = closeable_response at 0xb7aa070cL whose fp = socket._fileobject object at 0xb7a94224
>>>
>>> b._ua_handlers['_cookies'].cookiejar
mechanize._clientcookie.CookieJar[Cookie(version=0, name='PREF', value='ID=57d545c229b4cf3f:TM=1236081634:LM=1236081634:S=p001WJMOr-V8Rlvi', port=None, port_specified=False, domain='.google.com', domain_specified=True, domain_initial_dot=True, path='/', path_specified=True, secure=False, expires=1299153634, discard=False, comment=None, comment_url=None, rest={}, rfc2109=False), Cookie(version=0, name='PREF', value='ID=20534d80a5ccf2ea:TM=1236081635:LM=1236081635:S=jW3UotZ0dg8sv6mf', port=None, port_specified=False, domain='.google.com.ua', domain_specified=True, domain_initial_dot=True, path='/', path_specified=True, secure=False, expires=1299153635, discard=False, comment=None, comment_url=None, rest={}, rfc2109=False)]
>>>