RE #27722 Add unit tests for qappthreadcall

qt/python/mantidqt/utils/qt/test/test_qappthreadcall.py

@@ -9,12 +9,11 @@
 #
 import unittest
 
-from time import sleep
+from qtpy.QtWidgets import QApplication
 
+from mantidqt.utils.asynchronous import AsyncTask, TaskExitCode
 from mantidqt.utils.qt.qappthreadcall import QAppThreadCall
-from qtpy.QtWidgets import QApplication
 from mantidqt.utils.qt.testing import start_qapplication
-from mantidqt.utils.asynchronous import AsyncTask, TaskExitCode
 
 class CustomException(Exception):
     pass