Issue #23775: pprint() of OrderedDict now outputs the same representation

as repr().

1 files changed, 15 insertions, 6 deletions

diff --git a/Lib/pprint.py b/Lib/pprint.py
index fc5395e..c79c713 100644
--- a/Lib/pprint.py
+++ b/Lib/pprint.py
@@ -34,10 +34,10 @@ saferepr()
 
 """
 
+import collections as _collections
 import re
 import sys as _sys
 import types as _types
-from collections import OrderedDict as _OrderedDict
 from io import StringIO as _StringIO
 
 __all__ = ["pprint","pformat","isreadable","isrecursive","saferepr",
@@ -188,16 +188,25 @@ class PrettyPrinter:
             write((self._indent_per_level - 1) * ' ')
         length = len(object)
         if length:
-            if isinstance(object, _OrderedDict):
-                items = list(object.items())
-            else:
-                items = sorted(object.items(), key=_safe_tuple)
+            items = sorted(object.items(), key=_safe_tuple)
             self._format_dict_items(items, stream, indent, allowance + 1,
                                     context, level)
         write('}')
 
     _dispatch[dict.__repr__] = _pprint_dict
-    _dispatch[_OrderedDict.__repr__] = _pprint_dict
+
+    def _pprint_ordered_dict(self, object, stream, indent, allowance, context, level):
+        if not len(object):
+            stream.write(repr(object))
+            return
+        cls = object.__class__
+        stream.write(cls.__name__ + '(')
+        self._format(list(object.items()), stream,
+                     indent + len(cls.__name__) + 1, allowance + 1,
+                     context, level)
+        stream.write(')')
+
+    _dispatch[_collections.OrderedDict.__repr__] = _pprint_ordered_dict
 
     def _pprint_list(self, object, stream, indent, allowance, context, level):
         stream.write('[')