From 0c937b3ed6d2eeca84fa4aca1a9aef685db65abc Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Tue, 22 Jul 2014 12:14:52 +0300
Subject: Issue #22031: Reprs now always use hexadecimal format with the "0x"
 prefix when contain an id in form " at 0x...".

---
 Lib/ctypes/__init__.py   | 2 +-
 Lib/reprlib.py           | 2 +-
 Lib/test/test_reprlib.py | 2 +-
 Lib/test/test_weakref.py | 8 ++++++++
 Lib/test/test_xmlrpc.py  | 2 +-
 Lib/weakref.py           | 4 ++--
 Lib/xmlrpc/client.py     | 4 ++--
 Misc/NEWS                | 3 +++
 8 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/Lib/ctypes/__init__.py b/Lib/ctypes/__init__.py
index e34c646..785bd18 100644
--- a/Lib/ctypes/__init__.py
+++ b/Lib/ctypes/__init__.py
@@ -353,7 +353,7 @@ class CDLL(object):
             self._handle = handle
 
     def __repr__(self):
-        return "<%s '%s', handle %x at %x>" % \
+        return "<%s '%s', handle %x at %#x>" % \
                (self.__class__.__name__, self._name,
                 (self._handle & (_sys.maxsize*2 + 1)),
                 id(self) & (_sys.maxsize*2 + 1))
diff --git a/Lib/reprlib.py b/Lib/reprlib.py
index f803360..b7fda23 100644
--- a/Lib/reprlib.py
+++ b/Lib/reprlib.py
@@ -136,7 +136,7 @@ class Repr:
             # Bugs in x.__repr__() can cause arbitrary
             # exceptions -- then make up something
         except Exception:
-            return '<%s instance at %x>' % (x.__class__.__name__, id(x))
+            return '<%s instance at %#x>' % (x.__class__.__name__, id(x))
         if len(s) > self.maxother:
             i = max(0, (self.maxother-3)//2)
             j = max(0, self.maxother-3-i)
diff --git a/Lib/test/test_reprlib.py b/Lib/test/test_reprlib.py
index ae67f06..d65494a 100644
--- a/Lib/test/test_reprlib.py
+++ b/Lib/test/test_reprlib.py
@@ -123,7 +123,7 @@ class ReprTests(unittest.TestCase):
         eq(r(i2), expected)
 
         i3 = ClassWithFailingRepr()
-        eq(r(i3), ("<ClassWithFailingRepr instance at %x>"%id(i3)))
+        eq(r(i3), ("<ClassWithFailingRepr instance at %#x>"%id(i3)))
 
         s = r(ClassWithFailingRepr)
         self.assertTrue(s.startswith("<class "))
diff --git a/Lib/test/test_weakref.py b/Lib/test/test_weakref.py
index cccb515..adb923f 100644
--- a/Lib/test/test_weakref.py
+++ b/Lib/test/test_weakref.py
@@ -1536,6 +1536,14 @@ class MappingTestCase(TestBase):
         self.assertEqual(len(d), 0)
         self.assertEqual(count, 2)
 
+    def test_make_weak_valued_dict_repr(self):
+        dict = weakref.WeakValueDictionary()
+        self.assertRegex(repr(dict), '<WeakValueDictionary at 0x.*>')
+
+    def test_make_weak_keyed_dict_repr(self):
+        dict = weakref.WeakKeyDictionary()
+        self.assertRegex(repr(dict), '<WeakKeyDictionary at 0x.*>')
+
 from test import mapping_tests
 
 class WeakValueDictionaryTestCase(mapping_tests.BasicTestMappingProtocol):
diff --git a/Lib/test/test_xmlrpc.py b/Lib/test/test_xmlrpc.py
index 120c54f..c184da3 100644
--- a/Lib/test/test_xmlrpc.py
+++ b/Lib/test/test_xmlrpc.py
@@ -287,7 +287,7 @@ class DateTimeTestCase(unittest.TestCase):
     def test_repr(self):
         d = datetime.datetime(2007,1,2,3,4,5)
         t = xmlrpclib.DateTime(d)
-        val ="<DateTime '20070102T03:04:05' at %x>" % id(t)
+        val ="<DateTime '20070102T03:04:05' at %#x>" % id(t)
         self.assertEqual(repr(t), val)
 
     def test_decode(self):
diff --git a/Lib/weakref.py b/Lib/weakref.py
index f6a40ca..f780e7a 100644
--- a/Lib/weakref.py
+++ b/Lib/weakref.py
@@ -144,7 +144,7 @@ class WeakValueDictionary(collections.MutableMapping):
         return o is not None
 
     def __repr__(self):
-        return "<WeakValueDictionary at %s>" % id(self)
+        return "<WeakValueDictionary at %#x>" % id(self)
 
     def __setitem__(self, key, value):
         if self._pending_removals:
@@ -348,7 +348,7 @@ class WeakKeyDictionary(collections.MutableMapping):
         return len(self.data) - len(self._pending_removals)
 
     def __repr__(self):
-        return "<WeakKeyDictionary at %s>" % id(self)
+        return "<WeakKeyDictionary at %#x>" % id(self)
 
     def __setitem__(self, key, value):
         self.data[ref(key, self._remove)] = value
diff --git a/Lib/xmlrpc/client.py b/Lib/xmlrpc/client.py
index 567554d..d46f32c 100644
--- a/Lib/xmlrpc/client.py
+++ b/Lib/xmlrpc/client.py
@@ -354,7 +354,7 @@ class DateTime:
         return self.value
 
     def __repr__(self):
-        return "<DateTime %r at %x>" % (self.value, id(self))
+        return "<DateTime %r at %#x>" % (self.value, id(self))
 
     def decode(self, data):
         self.value = str(data).strip()
@@ -846,7 +846,7 @@ class MultiCall:
         self.__call_list = []
 
     def __repr__(self):
-        return "<MultiCall at %x>" % id(self)
+        return "<MultiCall at %#x>" % id(self)
 
     __str__ = __repr__
 
diff --git a/Misc/NEWS b/Misc/NEWS
index e542d50..6c64bcf 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -108,6 +108,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #22031: Reprs now always use hexadecimal format with the "0x" prefix
+  when contain an id in form " at 0x...".
+
 - Issue #22018: signal.set_wakeup_fd() now raises an OSError instead of a
   ValueError on ``fstat()`` failure.
 
-- 
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