#NEWLINE# def __get__( self , instance , owner ) : #NEWLINE# #INDENT# if ( instance is not None ) : #NEWLINE# #INDENT# try : #NEWLINE# #INDENT# return instance . _data [ self ] #NEWLINE# #UNINDENT# except KeyError : #NEWLINE# #INDENT# return instance . _data . setdefault ( self , self . _default ( instance ) ) #NEWLINE# #UNINDENT# #UNINDENT# return owner