Is there any way to decode String using unknown codec?

[howmuchistoday at gmail.com]

Hi
I'm a Korean and when I use modules like sys, os, &c,
sometimes the interpreter show me broken strings like
'\x13\xb3\x12\xc8'.
It mustbe the Korean "alphabet" but I can't decode it to the rightway.
I tried to decode it using codecs like cp949,mbcs,utf-8
but It failed.
The only way I found is eval('\x13\xb3\x12\xc8').
It raises an Error with showing right Korean.
Is there any way to deal it being not broken?