"""
Some simple classes to test network
pickling and unpickling
"""

class Spaceship():
    def __init__(self, name, engines):
        self.name = name
        self.engines =  engines

    def info(self):
        return ("I'm a " + self.name +
                " class spaceship and I have "
                + str(self.engines) + " engines")

class Planet():
    def __init__(self, name, moons):
        self.name = name
        self.moons = moons

    def info(self):
        return ("I'm a planet, my name is "
                + self.name + " and I have "
                + str(self.moons) + " moons")

class Journey():
    def __init__(self, spaceship, planet):
        self.spaceship = spaceship
        self.planet = planet