diff -r 34986f55a32d Lib/test/test_structseq.py
--- a/Lib/test/test_structseq.py	Sun Oct 20 17:25:34 2013 +0300
+++ b/Lib/test/test_structseq.py	Mon Oct 21 01:12:12 2013 +0530
@@ -34,7 +34,8 @@
         t = time.gmtime(0)
         self.assertEqual(repr(t),
             "time.struct_time(tm_year=1970, tm_mon=1, tm_mday=1, tm_hour=0, "
-            "tm_min=0, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0)")
+            "tm_min=0, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0, "
+            "{tm_zone='GMT', tm_gmtoff=0})")
         # os.stat() gives a complicated struct sequence.
         st = os.stat(__file__)
         rep = repr(st)
@@ -42,6 +43,7 @@
         self.assertIn("st_mode=", rep)
         self.assertIn("st_ino=", rep)
         self.assertIn("st_dev=", rep)
+        self.assertIn("st_blksize=", rep)
 
     def test_concat(self):
         t1 = time.gmtime()
diff -r 34986f55a32d Objects/structseq.c
--- a/Objects/structseq.c	Sun Oct 20 17:25:34 2013 +0300
+++ b/Objects/structseq.c	Mon Oct 21 01:12:12 2013 +0530
@@ -165,7 +165,7 @@
 
     PyTypeObject *typ = Py_TYPE(obj);
     int i, removelast = 0;
-    Py_ssize_t len;
+    Py_ssize_t len, n_visible_fields = VISIBLE_SIZE(obj);
     char buf[REPR_BUFFER_SIZE];
     char *endofbuf, *pbuf = buf;
 
@@ -179,7 +179,7 @@
     pbuf += len;
     *pbuf++ = '(';
 
-    for (i=0; i < VISIBLE_SIZE(obj); i++) {
+    for (i = 0; i < REAL_SIZE(obj) - UNNAMED_FIELDS(obj); i++) {
         PyObject *val, *repr;
         char *cname, *crepr;
 
@@ -201,7 +201,14 @@
 
         /* + 3: keep space for "=" and ", " */
         len = strlen(cname) + strlen(crepr) + 3;
+        if (i == n_visible_fields) {
+            /* We need space for {} */
+            len += 2;    
+        }
         if ((pbuf+len) <= endofbuf) {
+            if (i == n_visible_fields) {
+                *pbuf++ = '{';
+            }
             strcpy(pbuf, cname);
             pbuf += strlen(cname);
             *pbuf++ = '=';
@@ -224,6 +231,9 @@
         /* overwrite last ", " */
         pbuf-=2;
     }
+    if (i > n_visible_fields) {
+        *pbuf++ = '}';
+    }
     *pbuf++ = ')';
     *pbuf = '\0';