shawn bright wrote: > Hey there, > I am writing this because there is something that I am not > understanding about the struct module. Okay, let's see what we can do. > I have to send a message over a socket. The message has to be exactly > 4 bytes, and the last bit has to be the value of 200. Okay, that makes sense. Except you used the term 'last bit'. Do I understand you to mean 'the last part' and not 'the last bit (0/1)'? > so like this: > null,null,null,200 would be the message, and the 200 has to be an > unsigned long int. Hmm, an unsigned long int? Isn't that 4 bytes? Do you mean astr = chr(0)+chr(0)+chr(0)+chr(200) ? I can't really answer your specific question without this information. > > I know the stream of info that I am supposed to send the server is big > endian. > I also know that I should be using the struct.pack(), but I don't know > how to set this up. Basically, if the first 3 elements of the messages are null _characters_ and the 200 is an unsigned long int (which is more than a 4-byte string) formatstr = '>cccL' packedstruct = struct.pack(formatstr,chr(0),chr(0),chr(0),200)
Is probably how you'd do it. > > This is actually only part of the message, but I am trying to learn > this as i go. Sounds like a plan. HTH, -Luke _______________________________________________ Tutor maillist - [email protected] http://mail.python.org/mailman/listinfo/tutor
