AI_PRO/TractorLoad.py

class TillageUnit:
    def __init__(self, __load):
        self.__load = __load

    @property
    def load(self):
        return self.__load

    @load.setter
    def load(self, load):
        if load == "Fertilizer" or load == "Seeds" or load == "Water" or load == "Nothing":
            self.__load = load