#NEWLINE# def iteritems( self ) : #NEWLINE# #INDENT# 'Iterate over all header lines, including duplicate ones.' #NEWLINE# for key in self : #NEWLINE# #INDENT# vals = key . _container [ key . lower ( ) ] #NEWLINE# for val in vals [ 1 : ] : #NEWLINE# #INDENT# ( yield ( vals [ 0 ] , val ) )