https://api.mch.weixin.qq.com/sandboxnew/pay/getsignkey Result:

  <return_code><![CDATA[FAIL]]></return_code>

  <retmsg><![CDATA[<urlopen error [Errno 111] Connection refused>]]></retmsg>

  <retcode><![CDATA[1]]></retcode>

</xml>