[Zope] logout

[John Hunter]

I am trying to provide a logout option for my users.  After some
googling, I found a few suggestions and tried them (I am using a
standard acl user folder in zope 2.7) from the python API

The following mostly works but requires manager permission (I traced this to
RESPONSE.setBody call...)

   self._acctFolder.manage_zmi_logout(REQUEST, RESPONSE)

What is the right way to logout a user?

Thanks,
John Hunter