#NEWLINE# @ property #NEWLINE# def columns( self ) : #NEWLINE# #INDENT# levels = [ k for k in self . geography_config . keys ( ) ] #NEWLINE# columns = [ ] #NEWLINE# for k in levels : #NEWLINE# #INDENT# columns . append ( DatabaseColumn ( k , SimpleColumn ( k ) ) ) #NEWLINE# #UNINDENT# return self