Implement BlockerCache.keys() so that DictMixin.__repr__() works.

svn path=/main/trunk/; revision=7135

1 files changed, 7 insertions, 0 deletions

diff --git a/pym/emerge/__init__.py b/pym/emerge/__init__.py
index 28d36919c..ec7c1ec9a 100644
--- a/pym/emerge/__init__.py
+++ b/pym/emerge/__init__.py
@@ -960,6 +960,13 @@ class BlockerCache(DictMixin):
 		"""
 		return self.BlockerData(*self._cache_data["blockers"][cpv])
 
+	def keys(self):
+		"""This needs to be implemented so that self.__repr__() doesn't raise
+		an AttributeError."""
+		if self._cache_data and "blockers" in self._cache_data:
+			return self._cache_data["blockers"].keys()
+		return []
+
 def show_invalid_depstring_notice(parent_node, depstring, error_msg):
 
 	from formatter import AbstractFormatter, DumbWriter