#NEWLINE# def _get_field( self , fieldname ) : #NEWLINE# #INDENT# if ( not isinstance ( fieldname . dshape . measure , ( Record , datashape . Map ) ) ) : #NEWLINE# #INDENT# if ( fieldname == self . _name ) : #NEWLINE# #INDENT# return self #NEWLINE# #UNINDENT# raise ValueError ( ( "Can not get field '%s' of non-record expression %s" % ( fieldname , self ) ) ) #NEWLINE# #UNINDENT# return Field ( self , fieldname )