583             return False

   583             return False

   584 

   584 

   585     def __nonzero__(self):

   585     def __nonzero__(self):

   586         return True

   586         return True

   587 

   587 

   588     def __len__(self):

   590     def __len__(self):

   589         return len(self.changelog)

   591         return len(self.changelog)

   590 

   592 

   591     def __iter__(self):

   593     def __iter__(self):

   592         return iter(self.changelog)

   594         return iter(self.changelog)