From: Zac Medico <zmedico@gentoo.org>
Date: Fri, 27 Nov 2009 22:22:04 +0000 (-0000)
Subject: Handle a KeyError in depgraph._ordered_tree_display(), reported on irc by
X-Git-Tag: v2.2_rc53~2
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=f204903b79a577b96b672af7bcbdddb8e5fd1cf9;p=portage.git

Handle a KeyError in depgraph._ordered_tree_display(), reported on irc by
romildo.

svn path=/main/trunk/; revision=14901
---

diff --git a/pym/_emerge/depgraph.py b/pym/_emerge/depgraph.py
index dff0d9a79..cbf6737c7 100644
--- a/pym/_emerge/depgraph.py
+++ b/pym/_emerge/depgraph.py
@@ -4691,7 +4691,11 @@ class depgraph(object):
 					# an argument or a direct member of a set that has
 					# been specified as an argument (system or world).
 					if current_node not in self._dynamic_config._set_nodes:
-						parent_nodes = mygraph.parent_nodes(current_node)
+						try:
+							parent_nodes = mygraph.parent_nodes(current_node)
+						except KeyError:
+							# This can happen sometimes for blockers.
+							pass
 					if parent_nodes:
 						child_nodes = set(mygraph.child_nodes(current_node))
 						selected_parent = None