Index: /branches/fc17-dev/host/credit-card/host.py
===================================================================
--- /branches/fc17-dev/host/credit-card/host.py	(revision 2204)
+++ /branches/fc17-dev/host/credit-card/host.py	(revision 2205)
@@ -71,5 +71,5 @@
 
 def drop_caches():
-    with open("/proc/sys/vm/drop_caches") as f:
+    with open("/proc/sys/vm/drop_caches", 'w') as f:
         f.write("1")