python websocket爬虫_python如何抓取websocket实时的数据？

import websocket

import _thread

import time

import ssl

def on_message(ws, message):

print(message)

def on_error(ws, error):

print(error)

def on_close(ws):

print("### closed ###")

def on_open(ws):

def run(*args):

for i in range(3):

time.sleep(1)

#ws.send("Hello %d" % i)

ws.send("messagexxxxxxx")

time.sleep(1)

ws.close()

print("thread terminating...")

_thread.start_new_thread(run, ())

if __name__ == "__main__":

websocket.enableTrace(True)

#ws = websocket.WebSocketApp("ws://http://echo.websocket.org/",

#ws = websocket.WebSocketApp("ws://http://xxx.yyy.xxx:13442/",

ws = websocket.WebSocketApp("wss://xxx.yyy.zzz:13442/",

on_message = on_message,

on_error = on_error,

on_close = on_close)

ws.on_open = on_open

#ws.run_forever()

ws.run_forever(sslopt={"cert_reqs": ssl.CERT_NONE,"check_hostname": False})

出现如下错误。

--- request header ---

GET / HTTP/1.1

Upgrade: websocket

Connection: Upgrade

Sec-WebSocket-Key: YwlEuPdu92stVmPGgUganw==

Sec-WebSocket-Version: 13

-----------------------

--- response header ---

HTTP/1.1 502 Bad Gateway

Server: nginx/1.4.6 (Ubuntu)

Date: Thu, 21 Dec 2017 08:20:02 GMT

Content-Type: text/html

Content-Length: 181

Connection: keep-alive

-----------------------

Handshake status 502

### closed ###

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