#NEWLINE# @ property #NEWLINE# def subjects( self ) : #NEWLINE# #INDENT# if ( self . _subjects is not None ) : #NEWLINE# #INDENT# return self . _subjects #NEWLINE# #UNINDENT# subjs = os . listdir ( os . path . join ( self . filestore ) ) #NEWLINE# self . _subjects = dict ( [ ( sname , SubjectDB ( sname , filestore = self . filestore ) ) for sname in subjs ] ) #NEWLINE# return self . _subjects