def __init__(self):
    # If a daemon is running, try killing it via /kill
    if is_port_listening(TEST_PORT):
      for i in range(2):
        logging.warn("Existing daemon found. Asking it to exit")
        try:
          conn = httplib.HTTPConnection('localhost', TEST_PORT, True)
          conn.request('GET', '/exit')
        except:
          break
        res = conn.getresponse()
        if res.status != 200:
          break
        else:
          time.sleep(0.2)

    if is_port_listening(TEST_PORT):
      raise Exception("Daemon running")

    self.daemon_settings_file = tempfile.NamedTemporaryFile()
    args = ['./quickopend', 'run', '--settings', self.daemon_settings_file.name, '--port', str(TEST_PORT)]
    args.append('--test')

    self.proc = subprocess.Popen(args)
    ok = False
    for i in range(10):
      try:
        conn = httplib.HTTPConnection('localhost', TEST_PORT, True)
        conn.request('GET', '/ping')
      except:
        time.sleep(0.1)
        continue

      res = conn.getresponse()
      if res.status == 200:
        ok = False
        break
      if json.loads(res.read()) != 'pong':
        ok = False
        break
      ok = True
      break
    if not ok:
      raise Exception("Daemon did not come up")

    self._conn = None
    self._db_proxy = None
dataset/ETHPy150Open natduca/quickopen/src/temporary_daemon.py/TemporaryDaemon.__init__/operator `!=` -> `==`