'Start the job runner'

def __init__(self, app, nworkers):

    self._environ = os.environ.copy()
    if (not (('TMPDIR' in self._environ) or ('TEMP' in self._environ) or ('TMP' in self._environ))):
        self._environ['TEMP'] = os.path.abspath(tempfile.gettempdir())
    super(LocalJobRunner, self).__init__(app, nworkers)
    self._init_worker_threads()
