Handle UnicodeDecodeError in file class when file contents are not text (e.g. jpg). This shows up in python3 due to conversion from bytes to string. This allows binary file retrieval via the rest interface to complete.

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