docs: def exit_with_exc_info(code=1, message='', print_tb=False, exception=None):
      '''Exits the program, printing information about the last exception (if
      any) and an optional error message.  Uses *exception* instead if provided.
  
      :param code: Exit code.
      :type code: integer (valid exit code, 0-255)
      :param message: Message to be printed after the exception information.
      :type message: string
      :param print_tb: If set to True, prints the exception traceback; otherwise, suppresses it.
      :type print_tb: boolean
      :type exception: an exception to use in place of the last exception raised
      '''
      exc_type, exc_value = (exception.__class__, exception) \
                            if exception is not None else sys.exc_info()[:2]
  
      if exc_type is not None:
          if print_tb:
              traceback.print_exc()
          elif isinstance(exc_value, KeyboardInterrupt):
              sys.stderr.write('^C\n')
          else:
              for line in traceback.format_exception_only(exc_type, exc_value):
                  sys.stderr.write(line)
  
      sys.stderr.write(message)
      if message != '' and not message.endswith('\n'):
          sys.stderr.write('\n')
      sys.exit(code)