我在Paulo的方法上遇到了麻烦(请参阅我对他的回答的评论),所以我最终从scottbarnham.com博客文章中使用了这种方法:
from django.contrib.sessions.models import Session
from django.contrib.auth.models import User
session_key = '8cae76c505f15432b48c8292a7dd0e54'
session = Session.objects.get(session_key=session_key)
uid = session.get_decoded().get('_auth_user_id')
user = User.objects.get(pk=uid)
print user.username, user.get_full_name(), user.email