old_contents: from django.core.validators import ValidationError
  
  
  def menu_list(request):
      return {'menu_list': [
          # ['/', 'Главная'],
          # ['/camp', 'Лагерь'],
          # ['/hackathon', 'Хакатон'],
          # ['/lectoriy', 'Лекторий'],
          # ['/coworking', 'Коворкинг'],
          # ['/about_us', 'О нас']
      ]}
  
  
  def validation_error_to_boolean(f, val):
      try:
          f(val)
          return False
      except ValidationError:
          return True
  
new_contents: from django.core.validators import ValidationError
  
  
  def menu_list(request):
      return {'menu_list': [
          ['/bank/shop/', 'Магазин'],
          # ['/camp', 'Лагерь'],
          # ['/hackathon', 'Хакатон'],
          # ['/lectoriy', 'Лекторий'],
          # ['/coworking', 'Коворкинг'],
          # ['/about_us', 'О нас']
      ]}
  
  
  def validation_error_to_boolean(f, val):
      try:
          f(val)
          return False
      except ValidationError:
          return True
  
subject: Add shop to menu