class InterlockMotors (Interlock):
    def __init__(self):
        Interlock.__init__(self, (mu, delta, gamma, eta))

    def check(self, (m, d, g, e)):
        if e>d:
            return False
        return True


class InterlockFourcv (Interlock): 
    def __init__(self): 
        Interlock.__init__(self, (fourcv,)) 

    def check(self, (p,)): 
        m, d, g, e = p 
        if d>m:
            return False
        return True


class InterlockFourcv (Interlock): 
    def __init__(self): 
        Interlock.__init__(self, (fourcv, mu, delta, gamma, eta)) 

    def check(self, (p, m, d, g, e)): 
        
        mg, dg, gg, eg = p
        mv = mm, md, mg, me = m!=mg, d!=dg, g!=gg, e!=eg
        nm = mv.count(True) 
        simult =  nm > 1
        if simult:
            m, d, g, e = p

        print m, d, g, e  
        if d>m:
            return False
        return True
        
        
        
#interlock1.close()
interlock2.close()
#interlock1 = InterlockMotors()
interlock2 = InterlockFourcv()