futures is a backport

hugovk · hugovk · commit 419b7ad18255 · 2018-04-29T17:57:10.000+03:00
diff --git a/utils.py b/utils.py
@@ -19,6 +19,7 @@
     'backports-weakref',
     'enum34',
     'functools32',
+    'futures',
     'mock',
     'monotonic',
     'ordereddict',
