def initialize_read(self, filename, client_host, client_port):
        action = self.find_action(self.read_rules, filename)
        if action:
            return ReadBuffer(action(client_host, client_port, filename))
        else:
            return None
For a read request, finds the appropriate action and invokes it.
dataset/ETHPy150Open dropbox/emmer/emmer/response_router.py/ResponseRouter.initialize_read