#NEWLINE# def stash_addr_past( self , addr , from_stash = None , to_stash = None ) : #NEWLINE# #INDENT# '\n        Stash all paths containg address addr in their backtrace from stash from_stash to stash to_stash.\n        ' #NEWLINE# return self . stash ( ( lambda p : ( addr in p . addr_trace ) ) , from_stash = from_stash , to_stash = from_stash )