Python 3.4 can't find OpenSSL
Question: I trying to use WebSockets in Python 3.4 (Windows 7) This is a test code:

    
    
    from twisted.internet import reactor
    from autobahn.twisted.websocket import WebSocketClientFactory, WebSocketClientProtocol, connectWS
    import json
    
    class ClientProtocol(WebSocketClientProtocol):
        def onConnect(self, response):
            print("Server connected: {0}".format(response.peer))
        def initMessage(self):
            message_data = [{"type": "subscribe", "product_id": "BTC-USD"}]
            message_json = json.dumps(message_data)
            print("sendMessage: " + message_json)
            self.sendMessage(message_json)
        def onOpen(self):
            print("onOpen calls initMessage()")
            self.initMessage()
        def onMessage(self, msg, binary):
            print("Got echo: " + msg)
        def onClose(self, wasClean, code, reason):
            print("WebSocket connection closed: {0}".format(reason))
    
    if __name__ == '__main__':
        factory = WebSocketClientFactory("wss://ws-feed.exchange.coinbase.com")
        factory.protocol = ClientProtocol
        connectWS(factory)
        reactor.run()
    

When I start it I have an error:

    
    
    F:\python>wss.py
    Traceback (most recent call last):
      File "F:\python\wss.py", line 24, in <module>
        connectWS(factory)
      File "C:\Program Files (x86)\Python35-32\lib\site-packages\autobahn-0.11.0-py3
    .5.egg\autobahn\twisted\websocket.py", line 519, in connectWS
        from twisted.internet import ssl
      File "C:\Program Files (x86)\Python35-32\lib\site-packages\twisted-15.5.0-py3.
    5.egg\twisted\internet\ssl.py", line 59, in <module>
        from OpenSSL import SSL
    ImportError: No module named 'OpenSSL'
    

But when I tryed to install the OpenSSL, an error appeared:

    
    
    F:\python>easy_install openssl
    Searching for openssl
    Reading https://pypi.python.org/simple/openssl/
    Couldn't find index page for 'openssl' (maybe misspelled?)
    Scanning index of all packages (this may take a while)
    Reading https://pypi.python.org/simple/
    No local packages or download links found for openssl
    error: Could not find suitable distribution for Requirement.parse('openssl')
    

How can I start this test code?


Answer: Try to install pyOpenSSL package: `pip install pyOpenSSL`

