--- a/mercurial/demandimport.py	Sat Aug 08 15:01:27 2015 -0700
+++ b/mercurial/demandimport.py	Sat Aug 08 17:12:37 2015 -0700
@@ -145,6 +145,7 @@
         return mod
 
 ignore = [
+    '__future__',
     '_hashlib',
     '_xmlplus',
     'fcntl',