FIX make list_versions.py Python 2 compatible
#!/usr/bin/env python3
# List all available versions of the documentation
+from __future__ import print_function
-from urllib.request import urlopen
import json
import re
import sys
+try:
+ from urllib.request import urlopen
+except ImportError:
+ # Python 2
+ from urllib import urlopen
+
from distutils.version import LooseVersion
