Properly import from containers

Fixed python 3 deprecation warning
cms-sw · Nov 29, 2021 · 2111fb1 · 2111fb1
1 parent 6e40811
commit 2111fb1
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/FWCore/ParameterSet/python/OrderedSet.py b/FWCore/ParameterSet/python/OrderedSet.py
@@ -24,9 +24,9 @@
 # Copied from URL http://code.activestate.com/recipes/576694-orderedset/
 # on 15 November 2016
 
-import collections
+import collections.abc
 
-class OrderedSet(collections.MutableSet):
+class OrderedSet(collections.abc.MutableSet):
 
     def __init__(self, iterable=None):
         self.end = end = []