#NEWLINE# def _remove_attribut( self , node , attribut_name , trans_id ) : #NEWLINE# #INDENT# 'remove an attribut from a node\n        node: the node name (string)\n        attribut_name: name of the attribut (string)\n        trans_id: a transaction ID (int)\n        ' #NEWLINE# redis_key = self . _gen_key ( node , [ 'attribut' , attribut_name ] ) #NEWLINE# self . transactions [ trans_id ] . delete ( redis_key ) #NEWLINE# redis_key = self . _gen_key ( node , [ 'attributs_list' ] ) #NEWLINE# self . transactions [ trans_id ] . srem ( redis_key , attribut_name )