Bug 1624190 - Try importing from collections.abc first; r=rstewart

Differential Revision: https://phabricator.services.mozilla.com/D67773

--HG--
extra : moz-landing-system : lando

configure.py

@@ -11,7 +11,12 @@ import logging
 import os
 import sys
 import textwrap
-from collections import Iterable
+
+
+try:
+    from collections.abc import Iterable
+except ImportError:
+    from collections import Iterable
 
 
 base_dir = os.path.abspath(os.path.dirname(__file__))