Sending hex number as is
Antoon Pardon
apardon at forel.vub.ac.be
Thu Mar 24 02:56:09 EST 2005
Op 2005-03-21, knguyen at megisto.com schreef <knguyen at megisto.com>:
> This question may be ased before, but I couldn't find the answer
> searching the archive.
>
> Basically, I just want to send a hex number from one machine to the
> next:
Hex numbers don't exist. You have just numbers. Those numbers can
be represented in different ways, but that doesn't make it a different
(kind of) number.
> for example
>
> msg = "Length is "
> n = '\x81'
> msg += n
> sock.send(msg)
You are not sending a number, you are sending a string. What you
seem to want is to represent this number in hexadecimal format
on this machine within a string and send that string to an other
machine.
> The problem is n's value is not fixed. For example,
>
> msg = "Length is "
> n = len(somestring)
> msg += n # This won't work of course, since n is int
>
> How do I send this msg + n?
Use string formatting:
msg = "Length is 0x%x" % n
--
Antoon Pardon
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