diff -r a8df1ca60452 Lib/pprint.py
--- a/Lib/pprint.py	Mon Feb 23 00:31:33 2015 +0200
+++ b/Lib/pprint.py	Mon Feb 23 21:10:16 2015 +0200
@@ -36,6 +36,7 @@ saferepr()
 
 import re
 import sys as _sys
+import types as _types
 from collections import OrderedDict as _OrderedDict
 from io import StringIO as _StringIO
 
@@ -271,6 +272,15 @@ class PrettyPrinter:
                 if level == 1:
                     write(')')
                 return
+
+            if (issubclass(typ, _types.MappingProxyType) and
+                r is _types.MappingProxyType.__repr__):
+                write('mappingproxy(')
+                self._format(object.copy(), stream, indent + 13, allowance + 1,
+                             context, level)
+                write(')')
+                return
+
         write(rep)
 
     def _format_dict_items(self, items, stream, indent, allowance, context,
diff -r a8df1ca60452 Lib/test/test_pprint.py
--- a/Lib/test/test_pprint.py	Mon Feb 23 00:31:33 2015 +0200
+++ b/Lib/test/test_pprint.py	Mon Feb 23 21:10:16 2015 +0200
@@ -7,6 +7,7 @@ import test.test_set
 import random
 import collections
 import itertools
+import types
 
 # list, tuple and dict subclasses that do or don't overwrite __repr__
 class list2(list):
@@ -271,6 +272,34 @@ class QueryTestCase(unittest.TestCase):
  'a': 6,
  'lazy': 7,
  'dog': 8}""")
+
+    def test_mapping_proxy(self):
+        words = 'the quick brown fox jumped over a lazy dog'.split()
+        d = dict(zip(words, itertools.count()))
+        m = types.MappingProxyType(d)
+        self.assertEqual(pprint.pformat(m), """\
+mappingproxy({'a': 6,
+              'brown': 2,
+              'dog': 8,
+              'fox': 3,
+              'jumped': 4,
+              'lazy': 7,
+              'over': 5,
+              'quick': 1,
+              'the': 0})""")
+        d = collections.OrderedDict(zip(words, itertools.count()))
+        m = types.MappingProxyType(d)
+        self.assertEqual(pprint.pformat(m), """\
+mappingproxy({'the': 0,
+              'quick': 1,
+              'brown': 2,
+              'fox': 3,
+              'jumped': 4,
+              'over': 5,
+              'a': 6,
+              'lazy': 7,
+              'dog': 8})""")
+
     def test_subclassing(self):
         o = {'names with spaces': 'should be presented using repr()',
              'others.should.not.be': 'like.this'}