diff -r 73015301db86 -r fc035e5370ca mercurial/commands.py
--- a/mercurial/commands.py	Tue Oct 11 20:21:13 2011 -0500
+++ b/mercurial/commands.py	Tue Oct 11 23:16:05 2011 -0500
@@ -1852,6 +1852,7 @@
               % os.path.dirname(__file__))
     try:
         import bdiff, mpatch, base85, osutil
+        dir(bdiff), dir(mpatch), dir(base85), dir(osutil) # quiet pyflakes
     except Exception, inst:
         ui.write(" %s\n" % inst)
         ui.write(_(" One or more extensions could not be found"))