Index: Lib/pickle.py
===================================================================
--- Lib/pickle.py	(révision 80008)
+++ Lib/pickle.py	(copie de travail)
@@ -499,7 +499,7 @@
 
     def save_str(self, obj, pack=struct.pack):
         if self.bin:
-            encoded = obj.encode('utf-8')
+            encoded = obj.encode('utf-8', 'surrogatepass')
             n = len(encoded)
             self.write(BINUNICODE + pack("<i", n) + encoded)
         else:
@@ -966,7 +966,7 @@
 
     def load_binunicode(self):
         len = mloads(b'i' + self.read(4))
-        self.append(str(self.read(len), 'utf-8'))
+        self.append(str(self.read(len), 'utf-8', 'surrogatepass'))
     dispatch[BINUNICODE[0]] = load_binunicode
 
     def load_short_binstring(self):
Index: Modules/_pickle.c
===================================================================
--- Modules/_pickle.c	(révision 80008)
+++ Modules/_pickle.c	(copie de travail)
@@ -1227,7 +1227,9 @@
     if (self->bin) {
         char pdata[5];
 
-        encoded = PyUnicode_AsUTF8String(obj);
+        encoded = PyUnicode_EncodeUTF8(PyUnicode_AS_UNICODE(obj),
+                                    PyUnicode_GET_SIZE(obj),
+                                    "surrogatepass");
         if (encoded == NULL)
             goto error;
 
@@ -3352,7 +3354,7 @@
     if (unpickler_read(self, &s, size) < 0)
         return -1;
 
-    str = PyUnicode_DecodeUTF8(s, size, NULL);
+    str = PyUnicode_DecodeUTF8(s, size, "surrogatepass");
     if (str == NULL)
         return -1;
 
Index: Lib/test/pickletester.py
===================================================================
--- Lib/test/pickletester.py	(révision 80008)
+++ Lib/test/pickletester.py	(copie de travail)
@@ -515,7 +515,9 @@
 
     def test_unicode(self):
         endcases = ['', '<\\u>', '<\\\u1234>', '<\n>',
-                    '<\\>', '<\\\U00012345>']
+                    '<\\>', '<\\\U00012345>',
+                    # surrogates
+                    '<\udc80>']
         for proto in protocols:
             for u in endcases:
                 p = self.dumps(u, proto)