u

class struct :

   """ class used to emulate a C struct, members are seen as attributes

   self.keys() returns the list of elements

   """

   def keys(self) :

      return self.__dict__.keys()

   def __setitem__(self,this,that) :

      self.__dict__[this]=that

   def __getitem__(self,this) :

      return self.__dict__[this]

   def __repr__(self) :

      out=[]

      for k in self.keys() :

            out['('+k+':'+str(self[k])+')']

      return '('+(','.join(out))+')'

   def __init__(self) :

      return

      if od is None :

            return

      for k in od.keys() :

            self.__dict__[k] = od[k]