Python 3 preparation: avoid assigning to instance __getitem__ in TruthDict. In Python 3, special method names are generally only looked up at the class level, not on instance objects, and so assigning to them for an instance object doesn't work as expected.

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