#506 Fix default value for status

nanten2 · Mar 26, 2022 · 3aee9a7 · 3aee9a7
1 parent 59e7571
commit 3aee9a7
Showing 1 changed file with 3 additions and 5 deletions.
diff --git a/scripts/controller/ROS_controller.py b/scripts/controller/ROS_controller.py
@@ -47,7 +47,7 @@ class controller(object):
     dome_tracking_flag = False
     access_authority = "no_data"
 
-    status = ""
+    status = None
 
     auth = ""
     frame = "controller"
@@ -950,20 +950,18 @@ def read_status(self):
         self.read_sub = rospy.Subscriber("read_status", Read_status_msg, self._write_status)
 
         while not rospy.is_shutdown():
-            if self.status:
+            if self.status is not None:
                 status = self.status
-                self.status = ""
+                self.status = None
                 break
             else:
-                status = ""
                 time.sleep(0.1)
 
         return status
 
     def _write_status(self, req):
         self.status = req
         self.read_sub.unregister()
-        return
 
     # ===================
     # others