Add importtables roundup-admin command. I am surprised this doesn't exist. It's the dual of exporttables. Output of exporttables can't be imported by import, so I am not sure why it's useful. I can't find the sourceforge ticket that is referenced in the creation of exporttables. I considered trapping the error generated when import can't find file content, but that's not a great idea as it can mask an invalid/incorrect export and the loss of data associated with it.

#!/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)