gistfile1.py

class Action:
    def __init__(self):
        self.next_action = None

    def run(self, socket, vars):
        pass # this will be overloaded

    def __rshift__(self, other):
        self.append_action(other)

    def append_action(self, other):
        if not self.next_action:
            self.next_action = other
        else:
            self.next_action.append_action(other)