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websocket-client-temp
Advanced tools
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
The "send" and "validate_utf8" methods are too slow on pure python. If you want to get better performace, please install both numpy and wsaccel.
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
.. code:: python
import websocket
ws = websocket.WebSocket()
ws.connect("ws://example.com/websocket", http_proxy_host="proxy_host_name", http_proxy_port=3128)
This example is similar to how WebSocket code looks in browsers using JavaScript.
.. code:: python
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()
This is if you want to communicate a short message and disconnect immediately when done.
.. code:: python
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()
If you want to customize socket options, set sockopt.
sockopt example
.. code:: python
from websocket import create_connection
ws = create_connection("ws://echo.websocket.org/",
sockopt=((socket.IPPROTO_TCP, socket.TCP_NODELAY),))
You can also write your own class for the connection, if you want to handle the nitty-gritty details yourself.
.. code:: python
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)
Please set sslopt to {"cert_reqs": ssl.CERT_NONE}.
WebSocketApp sample
.. code:: python
ws = websocket.WebSocketApp("wss://echo.websocket.org")
ws.run_forever(sslopt={"cert_reqs": ssl.CERT_NONE})
create_connection sample
.. code:: python
ws = websocket.create_connection("wss://echo.websocket.org",
sslopt={"cert_reqs": ssl.CERT_NONE})
WebSocket sample
.. code:: python
ws = websocket.WebSocket(sslopt={"cert_reqs": ssl.CERT_NONE})
ws.connect("wss://echo.websocket.org")
Please set sslopt to {"check_hostname": False}. (since v0.18.0)
WebSocketApp sample
.. code:: python
ws = websocket.WebSocketApp("wss://echo.websocket.org")
ws.run_forever(sslopt={"check_hostname": False})
create_connection sample
.. code:: python
ws = websocket.create_connection("wss://echo.websocket.org",
sslopt={"check_hostname": False})
WebSocket sample
.. code:: python
ws = websocket.WebSocket(sslopt={"check_hostname": False})
ws.connect("wss://echo.websocket.org")
SNI <http://en.wikipedia.org/wiki/Server_Name_Indication>
_?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
.. code:: python
ws = websocket.create_connection("ws://example.com/websocket", subprotocols=["binary", "base64"])
wsdump.py is simple WebSocket test(debug) tool.
sample for echo.websocket.org::
$ wsdump.py ws://echo.websocket.org/ Press Ctrl+C to quit
Hello, WebSocket < Hello, WebSocket How are you? < How are you?
usage::
wsdump.py [-h] [-v [VERBOSE]] ws_url
WebSocket Simple Dump Tool
positional arguments: ws_url websocket url. ex. ws://echo.websocket.org/
optional arguments: -h, --help show this help message and exit WebSocketApp -v VERBOSE, --verbose VERBOSE set verbose mode. If set to 1, show opcode. If set to 2, enable to trace websocket module
example::
$ wsdump.py ws://echo.websocket.org/ $ wsdump.py ws://echo.websocket.org/ -v $ wsdump.py ws://echo.websocket.org/ -vv
FAQs
WebSocket client for Python. hybi13 is supported.
We found that websocket-client-temp demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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