class termostat:
    def __init__(self, aktualna_temp):
        self.aktualna_temp = aktualna_temp
        self.docelowa_temp = 0
        self.tryb_eko = False
    def ustaw_temp(self,nowa_temp):
        eko = self.tryb_eko
        
        if eko == True and nowa_temp < 21:
            self.docelowa_temp = nowa_temp
        elif eko == True and nowa_temp >= 21:
            print("nie możesz ustawićtej temperatury w trybie eko")
        elif