implemented HTTP charset negotiation. charset is kept in the browser cookie 'roundup_charset' and may be changed by the form parameter '@charset'. HTML rendered from templates is encoded and form fields are decoded according to selected charset. for other 'text/html' output (not coming from template rendering) specify 'charset=utf-8' in HTTP 'Content-Type' header unless already set.

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