environment/lib/python2.7/site-packages/IPython/frontend/html/notebook/handlers.py
def _inject_cookie_message(self, msg):
        """Inject the first message, which is the document cookie,
        for authentication."""
        if isinstance(msg, unicode):
            # Cookie can't constructor doesn't accept unicode strings for some reason
            msg = msg.encode('utf8', 'replace')
        try:
            self.request._cookies = Cookie.SimpleCookie(msg)
        except:
            logging.warn("couldn't parse cookie string: %s",msg, exc_info=True)
def _inject_cookie_message(self, msg):
        """Inject the first message, which is the document cookie,
        for authentication."""
        if isinstance(msg, unicode):
            # Cookie can't constructor doesn't accept unicode strings for some reason
            msg = msg.encode('utf8', 'replace')
        try:
            self.request._cookies = Cookie.SimpleCookie(msg)
        except:
            logging.warn("couldn't parse cookie string: %s",msg, exc_info=True)
Inject the first message, which is the document cookie,
        for authentication.