Make HTMLClass::history signature compatible to _HTMLItem::history _HTMLItem::history accepts 4 optional named parameters. If a template (e.g. issue.item.html) calls history with a named param and then is called in the context of creating a new issue, you get a traceback. Change HTMLClass::history to accept any named parameter so adding new named params to _HTMLItem::history doesn't require a change to HTMLClass::history.

#!/usr/bin/env python

# Roundup requires Python 2.7+ as mentioned in doc\installation.txt
from __future__ import print_function
import sys

VERSION_NEEDED = (2, 7)

if sys.version_info < VERSION_NEEDED:
    print("Content-Type: text/plain\n")
    print("Roundup requires Python %s.%s or newer." % VERSION_NEEDED)
    sys.exit(0)