#NEWLINE# def get_unique_values( self , attribute ) : #NEWLINE# #INDENT# all_values = [ ] #NEWLINE# for info in self : #NEWLINE# #INDENT# vals = eval ( ( ( 'info.' + attribute ) + '()' ) ) #NEWLINE# all_values . extend ( vals ) #NEWLINE# #UNINDENT# return unique_values ( all_values )