--- a/mercurial/commandserver.py	Sat May 12 16:00:57 2012 +0200
+++ b/mercurial/commandserver.py	Sat May 12 16:00:58 2012 +0200
@@ -166,7 +166,7 @@
 
         # is the other end closed?
         if not data:
-            raise EOFError()
+            raise EOFError
 
         return data