diff -ru dnspython-1.16.0-orig/dns/namedict.py dnspython-1.16.0/dns/namedict.py
--- dnspython-1.16.0-orig/dns/namedict.py	2018-12-01 10:25:27.000000000 -0500
+++ dnspython-1.16.0/dns/namedict.py	2020-01-21 19:48:57.266576401 -0500
@@ -27,12 +27,16 @@
 
 """DNS name dictionary"""
 
-import collections
 import dns.name
 from ._compat import xrange
 
+try:
+    from collections.abc import MutableMapping
+except ImportError:
+    from collections import MutableMapping
 
-class NameDict(collections.MutableMapping):
+
+class NameDict(MutableMapping):
     """A dictionary whose keys are dns.name.Name objects.
 
     In addition to being like a regular Python dictionary, this