#NEWLINE# def get_referrers( obj , path = None ) : #NEWLINE# #INDENT# if ( not path ) : #NEWLINE# #INDENT# path = [ ] #NEWLINE# #UNINDENT# referrers = gc . get_referrers ( obj ) #NEWLINE# for edge in path : #NEWLINE# #INDENT# referrers = gc . get_referrers ( referrers [ edge ] ) #NEWLINE# #UNINDENT# return referrers