From 765f14a2dd18d4f8f097943d7969e75adc0d1922 Mon Sep 17 00:00:00 2001
From: "Jon.Erdman" <jon.erdman@untapt.com>
Date: Thu, 10 Mar 2022 16:12:20 -0500
Subject: [PATCH] Update to collections module structure to support python 3.9+

---
 mapper/casedict.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/mapper/casedict.py b/mapper/casedict.py
index b1cb499..20beedf 100644
--- a/mapper/casedict.py
+++ b/mapper/casedict.py
@@ -4,8 +4,12 @@
 https://bitbucket.org/optiflowsrd/obelus/src/tip/obelus/casedict.py
 """
 
-from collections import MutableMapping
+import sys
 
+if sys.version_info[:2] >= (3, 8):
+    from collections.abc import MutableMapping
+else:
+    from collections import MutableMapping
 
 _sentinel = object()