write unsigned integer 32 bits to socket

Larry Bates larry.bates at websafe.com`
Sun Jul 27 22:17:22 EDT 2008


rkmr.em at gmail.com wrote:
> On Sun, Jul 27, 2008 at 7:01 PM, Larry Bates <larry.bates at websafe.com`> wrote:
>> rkmr.em at gmail.com wrote:
>>> i want to send unsigned 32 bit integer to socket, and looking for
>>> something equivalent to this method...
>>> http://livedocs.adobe.com/flex/2/langref/flash/net/Socket.html#writeUnsignedInt()
>>>
>>> is there such method / library available in python?!
>> You will need to use struct module to build the 4 byte value and then send
>> it.
>>
>> Something like (not tested):
>>
>> import struct
>> us32bit = struct.pack("I", value)
>> s.send(us32bit)
> 
> thanks a lot!!!
> 
> just to make sure if I want 32 bit or 4 bytes then should I use the
> short or integer or long?
> 
> this is short
>>>> struct.pack('!h',3)
> '\x00\x03'
> 
> this is integer
>>>> struct.pack('!i',3)
> '\x00\x00\x00\x03'
> 
> this is long
>>>> struct.pack('!l',3)
> '\x00\x00\x00\x03'

Short is 16 bits, Integer is 32 bits, long is 64 bits (as I read and have found).

-Larry



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