Python 3.6 SSL：CERTIFICATE_VERIFY_FAILED

Question

我正在使用以下代碼與labeeb-iot代理連接。

import paho.mqtt.client as mqtt
import ssl

def on_connect(client, userdata, flags, rc):
  print("Connected with result code "+str(rc))
  client.subscribe("/focus/temp/SEnsor1/Model1/Temperature/data")

def on_message(client, userdata, msg):
  print(msg.payload.decode())

client = mqtt.Client()
client.on_connect = on_connect
client.on_message = on_message

client.tls_set("/etc/ssl/certs/ca-certificates.crt", certfile=None, keyfile=None, cert_reqs=ssl.CERT_REQUIRED,tls_version=ssl.PROTOCOL_TLSv1_2, ciphers=None)

client.tls_insecure_set(False)

client.connect("mea.labeeb-iot.com",8883,60)

client.loop_forever()

執行以下代碼后，結果為：

Answer 1

經紀人證書於今年5月26日到期。

您可以使用以下命令對此進行驗證：

openssl s_client -verify 2  -connect mea.labeeb-iot.com:8883 -CAfile /etc/ssl/certs/ca-certificates.crt

它將打印如下內容：

深度= 0 C = QA，ST =卡塔爾，L =多哈，O =卡塔爾移動創新中心（QMIC），CN = * .labeeb-iot.com notAfter = May 26 26:24:38 2017 GMT驗證回報：1