[patch] empty queue patch

0001-Fix-startinganemptyqueuetraceback(bug506186).patch (text/plain), 872 bytes, created by Brian Dolbec on 2014-03-29 21:06:43 UTC

From d2783333404724f2524e42371f5dc641af1074f0 Mon Sep 17 00:00:00 2001
From: Brian Dolbec <[e-mail]>
Date: Sat, 29 Mar 2014 13:21:01 -0700
Subject: [PATCH] Fix starting an empty queue traceback (bug 506186)

---
 pym/_emerge/TaskSequence.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pym/_emerge/TaskSequence.py b/pym/_emerge/TaskSequence.py
index 1fecf63..b4bfefe 100644
--- a/pym/_emerge/TaskSequence.py
+++ b/pym/_emerge/TaskSequence.py
@@ -30,8 +30,9 @@ class TaskSequence(CompositeTask):
 		CompositeTask._cancel(self)
 
 	def _start_next_task(self):
-		self._start_task(self._task_queue.popleft(),
-			self._task_exit_handler)
+		if self._task_queue:
+			self._start_task(self._task_queue.popleft(),
+				self._task_exit_handler)
 
 	def _task_exit_handler(self, task):
 		if self._default_exit(task) != os.EX_OK:
-- 
1.8.5.3