#NEWLINE# def computeExpressionDelSlice( self , set_node , lower , upper , constraint_collection ) : #NEWLINE# #INDENT# constraint_collection . removeKnowledge ( self ) #NEWLINE# constraint_collection . removeKnowledge ( lower ) #NEWLINE# constraint_collection . removeKnowledge ( upper ) #NEWLINE# constraint_collection . onControlFlowEscape ( self ) #NEWLINE# constraint_collection . onExceptionRaiseExit ( BaseException ) #NEWLINE# return ( set_node , None , None )