UnicodeDecodeError: 'charmap' codec can't decode byte 0x9d in position 10442: character maps to <undefined>

[Skip Montanaro]

As Chris indicated, you'll have to figure out the correct encoding. You
might want to check out the chardet module (available on PyPI, I believe)
and see if it can come up with a better guess. I imagine there are other
encoding guessers out there. That's just one I'm familiar with.

Skip