workaround for thread end problem on program close

User_Interface.py

@@ -626,7 +626,7 @@ class ExecuteCSVMode(Frame):
         self.stop_button["state"] = "normal"
         self.reinit_button["state"] = "disabled"
 
-        # g.threadLock = threading.Lock()  # create thread locking object, used to ensure all devices switch at once later
+        g.threadLock = threading.Lock()  # create thread locking object, used to ensure all devices switch at once later
         # create separate thread to run sequence execution in:
         self.csv_thread = csv.ExecCSVThread("CSV_Thread", self.sequence_array, self, self.controller)
         self.csv_thread.start()  # start thread