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menu.py
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71 lines (53 loc) · 1.69 KB
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from menuabc import MenuComponent
class Menu(MenuComponent):
def __init__(self, name, description):
self.menu_components = []
self.__name = name
self.__description = description
def append(self, menu_component):
self.menu_components.append(menu_component)
def remove(self, menu_component):
self.menu_components.remove(menu_component)
def __getitem__(self, index):
return self.menu_components[index]
@property
def name(self):
return self.__name
@property
def description(self):
return self.__description
@property
def is_vegetarian(self):
return all(sub_menu.is_vegetarian for sub_menu in self.menu_components)
def display(self):
print('\n' + self.name, end='')
if self.is_vegetarian:
print(' (v)', end='')
print(', ', self.description, sep='')
print('-' * 60)
for menu_component in self.menu_components:
menu_component.display()
class MenuItem(MenuComponent):
def __init__(self, name, description, vegetarian, price):
self.__name = name
self.__description = description
self.__vegetarian = vegetarian
self.__price = price
@property
def name(self):
return self.__name
@property
def description(self):
return self.__description
@property
def is_vegetarian(self):
return self.__vegetarian
@property
def price(self):
return self.__price
def display(self):
print(' ' + self.name, end='')
if self.is_vegetarian:
print(' (v)', end='')
print(',', self.price)
print(' --', self.description)