Index: dialin/ui/hd_simulator.py
===================================================================
diff -u -rd3a22e97fad0b715b1e9fba138236334ae7dbb6d -rdb2b8f2dbb5876c6d02a9d2140b52322ae7dce4e
--- dialin/ui/hd_simulator.py	(.../hd_simulator.py)	(revision d3a22e97fad0b715b1e9fba138236334ae7dbb6d)
+++ dialin/ui/hd_simulator.py	(.../hd_simulator.py)	(revision db2b8f2dbb5876c6d02a9d2140b52322ae7dce4e)
@@ -26,13 +26,7 @@
 from random import random
 from copy import deepcopy
 import threading as threadsHere
-# from threading import Timer
-# from PySide2.QtCore import QTimer  # TBD! Slot,  Qt
 
-from functools import wraps
-
-
-
 def catch_exception(f):
     @functools.wraps(f)
     def func(*args, **kwargs):
@@ -593,7 +587,7 @@
     def run_demoTimer_timeout(self) -> None:
         while self.demoTimer.is_alive():
             self.do_demoTimer_timeout()
-            time.sleep(1)
+            sleep(1)
         self.demoTimer.cancel()
 
     def do_demoTimer_timeout(self) -> None: