From 89fc2b78214b97f7bc5d3fcf32d9e4cb9940c1dd Mon Sep 17 00:00:00 2001
From: Raymond Hettinger <python@rcn.com>
Date: Fri, 27 Feb 2009 07:47:32 +0000
Subject: [PATCH] Give mapping views a usable repr.

---
 Lib/_abcoll.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Lib/_abcoll.py b/Lib/_abcoll.py
index c7636ec80e..45747a6c49 100644
--- a/Lib/_abcoll.py
+++ b/Lib/_abcoll.py
@@ -392,6 +392,9 @@ class MappingView(Sized):
     def __len__(self):
         return len(self._mapping)
 
+    def __repr__(self):
+        return '{0.__class__.__name__}({0._mapping!r})'.format(self)
+
 
 class KeysView(MappingView, Set):
 
-- 
2.50.1