SOAPpy-如何传递安全标头？

from SOAPpy import SOAPProxy
from SOAPpy import WSDL

file = \'path/to/my/file?wsdl\'
server = WSDL.Proxy(file)

server.foo(bar)

Traceback (most recent call last):
  File \"<stdin>\", line 1, in <module>
  File \"C:\\Python27\\lib\\site-packages\\SOAPpy\\Client.py\", line 471, in __call__
    return self.__r_call(*args, **kw)
  File \"C:\\Python27\\lib\\site-packages\\SOAPpy\\Client.py\", line 493, in __r_call
    self.__hd, self.__ma)
  File \"C:\\Python27\\lib\\site-packages\\SOAPpy\\Client.py\", line 407, in __call
    raise p
SOAPpy.Types.faultType: <Fault soapenv:Client: WSDoAllReceiver: Incoming message
 does not contain required Security header: >

<wsse:Security xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" soapenv:mustUnderstand=\"1\">
<wsu:Timestamp xmlns:wsu=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd\" wsu:Id=\"Timestamp-12468716\">
<wsu:Created>
2008-06-23T13:17:13.841Z
</wsu:Created>
<wsu:Expires>
2008-06-23T13:22:13.841Z
</wsu:Expires>
</wsu:Timestamp>
<wsse:UsernameToken xmlns:wsu=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd\" wsu:Id=\"UsernameToken-31571602\">
<wsse:Username>
alice
</wsse:Username>
<wsse:Password Type=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText\">
bobPW
</wsse:Password>
</wsse:UsernameToken>
</wsse:Security>