parametrized port

measurement_viewer.py

@@ -68,7 +68,7 @@ def make_app():
 if __name__ == "__main__":
     app = make_app()
     port = 80
-    if len(sys.argv > 1):
+    if len(sys.argv) > 1:
         port = sys.argv[1]
     app.listen(port)
     tornado.ioloop.IOLoop.current().start()