[Twisted-Python] udp

Bruce Coram brucecoram at clara.co.uk
Wed Jun 20 03:29:20 MDT 2007


Many thanks for the help.  I had hoped to be able to use Twisted's udp 
but it makes no real difference.

Thanks

Bruce
> Like Carl suggested, I just eschewed Twisted on the client side when I 
> did something similar. Here is a simple client that can be used with 
> the server I sent earlier.
>
>
> import socket
>
> s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
> data = "Data from client"
> s.sendto(data, ('localhost', 8000))
> data,address = s.recvfrom(1024)
> print "received %r from %r" % (data, address)
>
>
>
> If you don't want the server to send anything back, you can skip the 
> recvfrom() on the client side and the self.transport.write() on the 
> server side. Of course, this doesn't include any error handling for 
> when the UDP data doesn't actually make it (which, of course, isn't 
> guaranteed) - but this is just to illustrate how simple it is.
>
>
> -Black
>
> On Jun 14, 2007, at 3:54 PM, Carl Zmola wrote:
>
>> If you are not receiving datagrams on the client side, is there any 
>> reason to use twisted for the client side?  You could just pump 
>> datagrams out when you need to send something.
>>
>>
>> Bruce Coram wrote:
>>> How do you send data using udp?
>>>
>>> I want to use udp to send messages from clients to a server.  I don't
>>> want to use connected udp.
>>>
>>> Can anyone supply some specimen code for me
>>>
>>> Thanks
>>>
>>> Bruce Coram
>>>
>>>
>>>
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