From a9226a442a4481635c7e3b8cbf3b5ad2f162de0c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bahad=C4=B1r=20Kandemir?= <bahadir@pardus.org.tr>
Date: Tue, 27 Feb 2007 11:28:59 +0000
Subject: [PATCH] Give cycle, nothing more

---
 pisi/graph.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pisi/graph.py b/pisi/graph.py
index d55257f8..1bffe0f1 100644
--- a/pisi/graph.py
+++ b/pisi/graph.py
@@ -124,6 +124,8 @@ class Digraph(object):
                 while self.p[u]:
                     u = self.p[u]
                     cycle.append(u)
+                    if self.has_edge(cycle[0], u):
+                        break
                 cycle.reverse()
                 raise CycleException(cycle)
         self.color[u] = 'b'             # mark black (completed)