test "$#" -eq 1 || return $?
echo "$1" | \
PYTHONPATH="$bup_t_lib_script_home/../lib" bup-python -c \
- "import sys, bup.helpers; print bup.helpers.resolve_parent(sys.stdin.readline())" \
+ "import sys, bup.helpers; print(bup.helpers.resolve_parent(sys.stdin.readline()))" \
|| return $?
}