diff -r aa121291eb0e -r 76dbfb06eba0 instance.py
--- a/instance.py	Sat Jan 20 15:55:09 2018 +0000
+++ b/instance.py	Sat Jan 20 19:57:05 2018 +0000
@@ -40,7 +40,7 @@
 
         logging.info('Launching ' + str(cmd))
 
-        self.proc=Popen(cmd, stdout=PIPE, stderr=PIPE)
+        self.proc=Popen(cmd, stdout=PIPE, stderr=PIPE, stdin=None)
 
     def read_result(self):
         stream=self.proc.stdout