variable referenced before assignment.

[testtubeme]

python-gssapi/gssapi/raw/misc.pyx

Lines 312 to 313 in a7de108

	except ValueError:
	res.append(u'{0} Decoding code: {1}'.format(e, code))

needs

except ValueError as e:

[frozencemetery]

Hi, if you'd like this fixed sooner, feel free to submit a pull request :) Otherwise I'll get to it when I have a bit more time to look.