Clean up pylint reports of unused modules, duplicate imports, indent issues, relative import, extra ';', unneeded pass. Also added support for TypeError as I restructured accept header parsing a bit to remove uneeded "version" variable assignments

#!/usr/bin/env python
from __future__ import print_function
import zlib, base64, sys
print(base64.encodestring(zlib.compress(sys.stdin.read())))