From 17d1a4de40232188973fa1de804e2b11fe35cd39 Mon Sep 17 00:00:00 2001 From: Felix Domke Date: Tue, 25 Jul 2006 18:47:38 +0000 Subject: [PATCH] add comment --- lib/python/Components/Element.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lib/python/Components/Element.py b/lib/python/Components/Element.py index 54a1cc25..880274b4 100644 --- a/lib/python/Components/Element.py +++ b/lib/python/Components/Element.py @@ -29,7 +29,9 @@ class Element: # we should not disconnect from upstream if # there are still elements depending on us. assert len(self.downstream_elements) == 0, "there are still downstream elements left" - if self.source: + + # Sources don't have a source themselves. don't do anything here. + if self.source is not None: self.source.disconnectDownstream(self) def disconnectDownstream(self, downstream): -- 2.30.2