Fix ValueError triggered when Scheduler._choose_pkg() doesn't find a package

and returns None.

svn path=/main/trunk/; revision=10985

diff --git a/pym/_emerge/__init__.py b/pym/_emerge/__init__.py
index 66f5ce4eef3ca684db13b934a8b9e1d78e37e17d..d7cd8fa112cce377a2315ee606d3b5ffb2caf0fd 100644 (file)
--- a/pym/_emerge/__init__.py
+++ b/pym/_emerge/__init__.py
@@ -8101,7 +8101,8 @@ class Scheduler(object):
                                chosen_pkg = pkg
                                break
 
-               self._pkg_queue.remove(chosen_pkg)
+               if chosen_pkg is not None:
+                       self._pkg_queue.remove(chosen_pkg)
                return chosen_pkg
 
        def _dependent_on_scheduled_merges(self, pkg):