mercurial/merge.py

--- a/mercurial/merge.py	Fri Apr 18 18:56:26 2014 -0700
+++ b/mercurial/merge.py	Fri Apr 18 22:19:25 2014 -0700
@@ -260,6 +260,13 @@
         self._state[dfile][0] = state
         self._dirty = True
 
+    def unresolved(self):
+        """Obtain the paths of unresolved files."""
+
+        for f, entry in self._state.items():
+            if entry[0] == 'u':
+                yield f
+
     def resolve(self, dfile, wctx):
         """rerun merge process for file path `dfile`"""
         if self[dfile] == 'r':