text: Title: unhandled exception in script -- when run py to exc in windows
  Body: Traceback (most recent call last):
    File "labelImg.py", line 18, in <module>
  ModuleNotFoundError: No module named 'PyQt5'
  
  During handling of the above exception, another exception occurred:
  
  Traceback (most recent call last):
    File "labelImg.py", line 27, in <module>
  ModuleNotFoundError: No module named 'sip'
  
  