Python - string to hexbytes conversion - HELP!

[Dan Howard]

Thanks to all that responded to my plea for help!
Much appreciated.
I now have several ways of approaching the problem
Regards
Dan
"me" <dhhnews0 at hotmail.com> wrote in message
news:HKvP7.17239$2Fd.11985 at news1.bloor.is...
> I'm a newbie to Python and I am trying
> to convert a string of decimal numbers - read from raw_input
> to a series of hexbytes
> eg
> if I do a read and get a='1234567'
> I need  an equivalent string to be
> b=Chr(0x01)+chr(0x23)+chr(x045)+chr(0x67)
>
> all this is to control a device from the serial port
> but I cannot seem to recall how to conver the input to my required output
> An hints or suggestion most appreciated! I've spend hours trying various
> built in's
> which I would prefer to use
>
> HELP!
>
>