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python - websocket-client
Время создания: 06.08.2018 10:53
Текстовые метки: websocket python client
Раздел: WebSocket
Запись: Velonski/mytetra-database/master/base/1533534794zk6qo9otft/text.html на

websocket-client module is WebSocket client for python. This provide the low level APIs for WebSocket. All APIs are the synchronous functions.

websocket-client supports only hybi-13.

License: LGPL


This module is tested on Python 2.7 and Python 3.x.

Type "python install" or "pip install websocket-client" to install.


from v0.16.0, we can install by "pip install websocket-client" for python 3.

This module depend on

- six

- backports.ssl_match_hostname for Python 2.x


"send" method is too slow on pure python. If you want to get better performace, please install numpy or wsaccel. You can get the best performance from numpy.

How about Python 3

Now, we support python 3 on single source code from version 0.14.0. Thanks, @battlemidget and @ralphbean.

HTTP Proxy

Support websocket access via http proxy. The proxy server must allow "CONNECT" method to websocket port. Default squid setting is "ALLOWED TO CONNECT ONLY HTTPS PORT".

Current implementation of websocket-client is using "CONNECT" method via proxy.


import websocket

ws = websocket.WebSocket()

ws.connect("ws://", http_proxy_host="proxy_host_name", http_proxy_port=3128)


Long-lived connection

This example is similar to how WebSocket code looks in browsers using JavaScript.

import websocket


import thread

except ImportError:

import _thread as thread

import time

def on_message(ws, message):


def on_error(ws, error):


def on_close(ws):

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

def on_open(ws):

def run(*args):

for i in range(3):


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



print("thread terminating...")

thread.start_new_thread(run, ())

if __name__ == "__main__":


ws = websocket.WebSocketApp("ws://",

on_message = on_message,

on_error = on_error,

on_close = on_close)

ws.on_open = on_open


Short-lived one-off send-receive

This is if you want to communicate a short message and disconnect immediately when done.

from websocket import create_connection

ws = create_connection("ws://")

print("Sending 'Hello, World'...")

ws.send("Hello, World")



result = ws.recv()

print("Received '%s'" % result)


If you want to customize socket options, set sockopt.

sockopt example

from websocket import create_connection

ws = create_connection("ws://",

sockopt=((socket.IPPROTO_TCP, socket.TCP_NODELAY),))

More advanced: Custom class

You can also write your own class for the connection, if you want to handle the nitty-gritty details yourself.

import socket

from websocket import create_connection, WebSocket

class MyWebSocket(WebSocket):

def recv_frame(self):

frame = super().recv_frame()

print('yay! I got this frame: ', frame)

return frame

ws = create_connection("ws://",

sockopt=((socket.IPPROTO_TCP, socket.TCP_NODELAY, 1),), class_=MyWebSocket)


How to disable ssl cert verification?

Please set sslopt to {"cert_reqs": ssl.CERT_NONE}.

WebSocketApp sample

ws = websocket.WebSocketApp("wss://")

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

create_connection sample

ws = websocket.create_connection("wss://",

sslopt={"cert_reqs": ssl.CERT_NONE})

WebSocket sample

ws = websocket.WebSocket(sslopt={"cert_reqs": ssl.CERT_NONE})


How to disable hostname verification.

Please set sslopt to {"check_hostname": False}. (since v0.18.0)

WebSocketApp sample

ws = websocket.WebSocketApp("wss://")

ws.run_forever(sslopt={"check_hostname": False})

create_connection sample

ws = websocket.create_connection("wss://",

sslopt={"check_hostname": False})

WebSocket sample

ws = websocket.WebSocket(sslopt={"check_hostname": False})


How to enable SNI?

SNI support is available for Python 2.7.9+ and 3.2+. It will be enabled automatically whenever possible.

Sub Protocols.

The server needs to support sub protocols, please set the subprotocol like this.

Subprotocol sample

ws = websocket.create_connection("ws://", subprotocols=["binary", "base64"]) is simple WebSocket test(debug) tool.

sample for

$ ws://

Press Ctrl+C to quit

> Hello, WebSocket

< Hello, WebSocket

> How are you?

< How are you?


usage: [-h] [-v [VERBOSE]] ws_url

WebSocket Simple Dump Tool

positional arguments:

ws_url websocket url. ex. ws://

optional arguments:

-h, --help show this help message and exit


-v VERBOSE, --verbose VERBOSE

set verbose mode. If set to 1, show opcode. If set to 2, enable to trace websocket module


$ ws://

$ ws:// -v

$ ws:// -vv

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