A class with no contructor (Python) -

given need operate machine, need vendingmachine class:

property stock(list) stores food items.

methods:

constructor takes in no arguments.
get_stock_names(): returns list of strings represents names of food items in stock. load(food): adds food object stock

and others,

#predefined class food(object):     def __init__(self, name, nutrition, good_until):         self.name = name         self.nutrition = nutrition         self.good_until = good_until         self.age = 0     def get_name(self):         return str(self.name)     def get_age(self):         return self.age     def get_nutrition(self):         if self.age <= self.good_until:             return self.nutrition         else:             return 0     def ripen(self, days):         self.age = self.age + days         return self.age     def is_spoiled(self):         return self.good_until < self.age  #my code below  class vendingmachine:     def __init__(self):     property = food.get_name   #no clue how make property     self.load = food.load       #same here     def get_stock_names(self, property):         lst = []         in food:             = str(i)             lst.append(i)         return lst     def has_stock(self, name):         return name in property     def load(self, food):         property.append(food)         return property     def sell(self, name):         if name in property:             property.remove(name)             return name         else:             return none 

what is
attributeerror: 'vendingmachine' object has no attribute 'load' (a variable)

i'm pretty sure you've misunderstood line of instructions telling stock property. suspect telling make instance variable named self.stock holds list of food instances. since constructor takes no arguments, presumably starts empty. using term "property" seems red herring, since property has specific meaning in python (a wrapper around method make attribute), doesn't make sense in situation.

anyway, here's think want constructor like:

def vendingmachine(object):     def __init__(self):         self.stock = [] # empty 

your later methods can inspect or manipulate self.stock necessary.