#NEWLINE# def find_bridge( self , name , must_exist ) : #NEWLINE# #INDENT# assert vsctl_bridge . cache_valid #NEWLINE# vsctl_bridge = self . bridges . get ( name ) #NEWLINE# if ( must_exist and ( not vsctl_bridge ) ) : #NEWLINE# #INDENT# vsctl_fatal ( ( 'no bridge named %s' % name ) ) #NEWLINE# #UNINDENT# self . verify_bridges ( ) #NEWLINE# return vsctl_bridge