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305 lines
9.5 KiB
305 lines
9.5 KiB
Metadata-Version: 1.2
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Name: websocket-client
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Version: 0.55.0
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Summary: WebSocket client for Python. hybi13 is supported.
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Home-page: https://github.com/websocket-client/websocket-client.git
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Author: liris
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Author-email: liris.pp@gmail.com
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License: BSD
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Description: =================
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websocket-client
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=================
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websocket-client module is WebSocket client for python. This provide the low level APIs for WebSocket. All APIs are the synchronous functions.
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websocket-client supports only hybi-13.
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License
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=======
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- BSD
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Installation
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============
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This module is tested on Python 2.7 and Python 3.4+.
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Type "python setup.py install" or "pip install websocket-client" to install.
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.. CAUTION::
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from v0.16.0, we can install by "pip install websocket-client" for Python 3.
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This module depends on
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- six
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- backports.ssl_match_hostname for Python 2.x
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Performance
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-----------
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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.
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How about Python 3
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==================
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Now, we support Python 3 on single source code from version 0.14.0. Thanks, @battlemidget and @ralphbean.
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HTTP Proxy
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==========
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Support websocket access via http proxy.
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The proxy server must allow "CONNECT" method to websocket port.
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Default squid setting is "ALLOWED TO CONNECT ONLY HTTPS PORT".
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Current implementation of websocket-client is using "CONNECT" method via proxy.
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example
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.. code:: python
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import websocket
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ws = websocket.WebSocket()
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ws.connect("ws://example.com/websocket", http_proxy_host="proxy_host_name", http_proxy_port=3128)
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Examples
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========
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Long-lived connection
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---------------------
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This example is similar to how WebSocket code looks in browsers using JavaScript.
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.. code:: python
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import websocket
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try:
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import thread
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except ImportError:
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import _thread as thread
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import time
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def on_message(ws, message):
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print(message)
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def on_error(ws, error):
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print(error)
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def on_close(ws):
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print("### closed ###")
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def on_open(ws):
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def run(*args):
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for i in range(3):
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time.sleep(1)
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ws.send("Hello %d" % i)
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time.sleep(1)
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ws.close()
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print("thread terminating...")
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thread.start_new_thread(run, ())
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if __name__ == "__main__":
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websocket.enableTrace(True)
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ws = websocket.WebSocketApp("ws://echo.websocket.org/",
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on_message = on_message,
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on_error = on_error,
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on_close = on_close)
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ws.on_open = on_open
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ws.run_forever()
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Short-lived one-off send-receive
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--------------------------------
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This is if you want to communicate a short message and disconnect immediately when done.
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.. code:: python
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from websocket import create_connection
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ws = create_connection("ws://echo.websocket.org/")
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print("Sending 'Hello, World'...")
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ws.send("Hello, World")
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print("Sent")
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print("Receiving...")
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result = ws.recv()
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print("Received '%s'" % result)
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ws.close()
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If you want to customize socket options, set sockopt.
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sockopt example
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.. code:: python
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from websocket import create_connection
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ws = create_connection("ws://echo.websocket.org/",
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sockopt=((socket.IPPROTO_TCP, socket.TCP_NODELAY),))
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More advanced: Custom class
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---------------------------
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You can also write your own class for the connection, if you want to handle the nitty-gritty details yourself.
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.. code:: python
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import socket
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from websocket import create_connection, WebSocket
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class MyWebSocket(WebSocket):
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def recv_frame(self):
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frame = super().recv_frame()
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print('yay! I got this frame: ', frame)
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return frame
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ws = create_connection("ws://echo.websocket.org/",
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sockopt=((socket.IPPROTO_TCP, socket.TCP_NODELAY, 1),), class_=MyWebSocket)
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FAQ
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===
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How to disable ssl cert verification?
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-------------------------------------
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Please set sslopt to {"cert_reqs": ssl.CERT_NONE}.
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WebSocketApp sample
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.. code:: python
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ws = websocket.WebSocketApp("wss://echo.websocket.org")
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ws.run_forever(sslopt={"cert_reqs": ssl.CERT_NONE})
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create_connection sample
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.. code:: python
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ws = websocket.create_connection("wss://echo.websocket.org",
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sslopt={"cert_reqs": ssl.CERT_NONE})
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WebSocket sample
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.. code:: python
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ws = websocket.WebSocket(sslopt={"cert_reqs": ssl.CERT_NONE})
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ws.connect("wss://echo.websocket.org")
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How to disable hostname verification?
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-------------------------------------
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Please set sslopt to {"check_hostname": False}.
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(since v0.18.0)
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WebSocketApp sample
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.. code:: python
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ws = websocket.WebSocketApp("wss://echo.websocket.org")
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ws.run_forever(sslopt={"check_hostname": False})
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create_connection sample
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.. code:: python
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ws = websocket.create_connection("wss://echo.websocket.org",
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sslopt={"check_hostname": False})
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WebSocket sample
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.. code:: python
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ws = websocket.WebSocket(sslopt={"check_hostname": False})
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ws.connect("wss://echo.websocket.org")
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How to enable `SNI <http://en.wikipedia.org/wiki/Server_Name_Indication>`_?
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---------------------------------------------------------------------------
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SNI support is available for Python 2.7.9+ and 3.2+. It will be enabled automatically whenever possible.
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Sub Protocols.
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--------------
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The server needs to support sub protocols, please set the subprotocol like this.
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Subprotocol sample
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.. code:: python
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ws = websocket.create_connection("ws://example.com/websocket", subprotocols=["binary", "base64"])
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wsdump.py
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=========
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wsdump.py is simple WebSocket test(debug) tool.
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sample for echo.websocket.org::
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$ wsdump.py ws://echo.websocket.org/
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Press Ctrl+C to quit
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> Hello, WebSocket
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< Hello, WebSocket
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> How are you?
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< How are you?
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Usage
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-----
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usage::
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wsdump.py [-h] [-v [VERBOSE]] ws_url
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WebSocket Simple Dump Tool
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positional arguments:
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ws_url websocket url. ex. ws://echo.websocket.org/
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optional arguments:
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-h, --help show this help message and exit
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WebSocketApp
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-v VERBOSE, --verbose VERBOSE set verbose mode. If set to 1, show opcode. If set to 2, enable to trace websocket module
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example::
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$ wsdump.py ws://echo.websocket.org/
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$ wsdump.py ws://echo.websocket.org/ -v
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$ wsdump.py ws://echo.websocket.org/ -vv
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Keywords: websockets
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Platform: UNKNOWN
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Classifier: Development Status :: 4 - Beta
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Classifier: License :: OSI Approved :: BSD License
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Classifier: Programming Language :: Python
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Classifier: Programming Language :: Python :: 2
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Classifier: Programming Language :: Python :: 2.6
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Classifier: Programming Language :: Python :: 2.7
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Classifier: Programming Language :: Python :: 3
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Classifier: Programming Language :: Python :: 3.4
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Classifier: Programming Language :: Python :: 3.5
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Classifier: Programming Language :: Python :: 3.6
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Classifier: Programming Language :: Python :: 3.7
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Classifier: Operating System :: MacOS :: MacOS X
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Classifier: Operating System :: POSIX
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Classifier: Operating System :: Microsoft :: Windows
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Classifier: Topic :: Internet
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Classifier: Topic :: Software Development :: Libraries :: Python Modules
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Classifier: Intended Audience :: Developers
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Requires-Python: >=2.6, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*
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