Escapes???

[Arinté]

I am trying to write this escape seq to a device from python
"H\x1b\x23\x12art\x1b\x23\x01\n"
The \x1b\x23\x12 is supposed to be a command tell the device to do something
special with "art", but python is making it look like this \x1b\x23\x12a
"rt".  Am I missing something on how to work with escape sequences?  Is
there another way to write hex values in a string.  I rather us \x00 because
that is what are testers are familiar with.

Thanks
jamarijr at hotmail.com