Merge pull request #4965 from Flamefire/ordereddict

Readd OrderedDict import

Author: ocaisa

easybuild/tools/py2vs3/py3.py

@@ -34,6 +34,7 @@
 # these are not used here, but imported from here in other places
 import configparser  # noqa
 import urllib.request as std_urllib  # noqa
+from collections import OrderedDict  # noqa
 from collections.abc import Mapping  # noqa
 from functools import cmp_to_key
 from importlib.util import spec_from_file_location, module_from_spec