# L-24 MCS 260 Mon 8 Mar 2010 : class Book

class Book:
   """
   Objects of the class Book represent books.
   """

   def create(self):
      "Prompts the user for number and title."
      self.key = input('Give number : ')
      self.title = raw_input('Give title : ')
      self.available = True
      return self

   def show(self):
      "Shows content of the book."
      s = '%2d' % self.key
      s += ': ' + self.title
      if self.available:
         s += ' is available'
      else:
         s += ' is not available'
      print s

   def check(self):
      "Returns the status of the book."
      return self.available
      
   def change(self):
      "Flips the status of the book."
      self.available = not self.available