WebSocket client for python
2021-07-15 16:06
标签：tin eve ssl cert lse 2.7 server turn pre web 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. This module is tested on Python 2.7 and Python 3.4+. Type “python setup.py install” or “pip install websocket-client” to install. Caution! from v0.16.0, we can install by “pip install websocket-client” for Python 3. This module depends on “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. Now, we support Python 3 on single source code from version 0.14.0. Thanks, @battlemidget and @ralphbean. 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. example This example is similar to how WebSocket code looks in browsers using JavaScript. This is if you want to communicate a short message and disconnect immediately when done. If you want to customize socket options, set sockopt. sockopt example You can also write your own class for the connection, if you want to handle the nitty-gritty details yourself. Please set sslopt to {“cert_reqs”: ssl.CERT_NONE}. WebSocketApp sample create_connection sample WebSocket sample Please set sslopt to {“check_hostname”: False}. (since v0.18.0) WebSocketApp sample create_connection sample WebSocket sample SNI support is available for Python 2.7.9+ and 3.2+. It will be enabled automatically whenever possible. The server needs to support sub protocols, please set the subprotocol like this. Subprotocol sample wsdump.py is simple WebSocket test(debug) tool. sample for echo.websocket.org: usage: WebSocket Simple Dump Tool example: WebSocket client for python 标签：tin eve ssl cert lse 2.7 server turn pre web 原文地址：https://www.cnblogs.com/fangbei/p/python-websocket.htmlProject description
License
Installation
performance
How about Python 3
HTTP Proxy
import websocket
ws = websocket.WebSocket()
ws.connect("ws://example.com/websocket", http_proxy_host="proxy_host_name", http_proxy_port=3128)
Examples
Long-lived connection
import websocket
try:
import thread
except ImportError:
import _thread as thread
import time
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)
time.sleep(1)
ws.close()
print("thread terminating...")
thread.start_new_thread(run, ())
if __name__ == "__main__":
websocket.enableTrace(True)
ws = websocket.WebSocketApp("ws://echo.websocket.org/",
on_message = on_message,
on_error = on_error,
on_close = on_close)
ws.on_open = on_open
ws.run_forever()
Short-lived one-off send-receive
from websocket import create_connection
ws = create_connection("ws://echo.websocket.org/")
print("Sending ‘Hello, World‘...")
ws.send("Hello, World")
print("Sent")
print("Receiving...")
result = ws.recv()
print("Received ‘%s‘" % result)
ws.close()
from websocket import create_connection
ws = create_connection("ws://echo.websocket.org/",
sockopt=((socket.IPPROTO_TCP, socket.TCP_NODELAY),))
More advanced: Custom class
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://echo.websocket.org/",
sockopt=((socket.IPPROTO_TCP, socket.TCP_NODELAY, 1),), class_=MyWebSocket)
FAQ
How to disable ssl cert verification?
ws = websocket.WebSocketApp("wss://echo.websocket.org")
ws.run_forever(sslopt={"cert_reqs": ssl.CERT_NONE})
ws = websocket.create_connection("wss://echo.websocket.org",
sslopt={"cert_reqs": ssl.CERT_NONE})
ws = websocket.WebSocket(sslopt={"cert_reqs": ssl.CERT_NONE})
ws.connect("wss://echo.websocket.org")
How to disable hostname verification.
ws = websocket.WebSocketApp("wss://echo.websocket.org")
ws.run_forever(sslopt={"check_hostname": False})
ws = websocket.create_connection("wss://echo.websocket.org",
sslopt={"check_hostname": False})
ws = websocket.WebSocket(sslopt={"check_hostname": False})
ws.connect("wss://echo.websocket.org")
How to enable SNI?
Sub Protocols.
ws = websocket.create_connection("ws://example.com/websocket", subprotocols=["binary", "base64"])
wsdump.py
$ wsdump.py ws://echo.websocket.org/
Press Ctrl+C to quit
> Hello, WebSocket
How are you?
Usage
wsdump.py [-h] [-v [VERBOSE]] ws_url
-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
$ wsdump.py ws://echo.websocket.org/
$ wsdump.py ws://echo.websocket.org/ -v
$ wsdump.py ws://echo.websocket.org/ -vv
文章标题：WebSocket client for python
文章链接：http://soscw.com/index.php/essay/105642.html