diff -r bc5f257f5cc1 Lib/test/test_structseq.py
--- a/Lib/test/test_structseq.py	Sun Jan 12 14:12:59 2014 -0800
+++ b/Lib/test/test_structseq.py	Sun Jan 12 16:31:15 2014 -0800
@@ -28,6 +28,16 @@
         for i in range(-len(t), len(t)-1):
             self.assertEqual(t[i], astuple[i])
 
+    def test_fields(self):
+        t = time.gmtime()
+        self.assertEqual(t._fields,
+                         ('tm_year', 'tm_mon', 'tm_mday', 'tm_hour', 'tm_min', 
+                          'tm_sec', 'tm_wday', 'tm_yday', 'tm_isdst'))
+        st = os.stat(__file__)
+        self.assertIn("st_mode", st._fields)
+        self.assertIn("st_ino", st._fields)
+        self.assertIn("st_dev", st._fields)
+
     def test_repr(self):
         t = time.gmtime()
         self.assertTrue(repr(t))
diff -r bc5f257f5cc1 Objects/structseq.c
--- a/Objects/structseq.c	Sun Jan 12 14:12:59 2014 -0800
+++ b/Objects/structseq.c	Sun Jan 12 16:31:15 2014 -0800
@@ -7,6 +7,7 @@
 static char visible_length_key[] = "n_sequence_fields";
 static char real_length_key[] = "n_fields";
 static char unnamed_fields_key[] = "n_unnamed_fields";
+static char _fields_key[] = "_fields";
 
 /* Fields with this name have only a field index, not a field name.
    They are only allowed for indices < n_visible_fields. */
@@ -14,6 +15,7 @@
 _Py_IDENTIFIER(n_sequence_fields);
 _Py_IDENTIFIER(n_fields);
 _Py_IDENTIFIER(n_unnamed_fields);
+_Py_IDENTIFIER(_fields);
 
 #define VISIBLE_SIZE(op) Py_SIZE(op)
 #define VISIBLE_SIZE_TP(tp) PyLong_AsLong( \
@@ -327,6 +329,7 @@
     PyMemberDef* members;
     int n_members, n_unnamed_members, i, k;
     PyObject *v;
+    PyObject *_fields;
 
 #ifdef Py_TRACE_REFS
     /* if the type object was chained, unchain it first
@@ -389,6 +392,19 @@
     SET_DICT_FROM_INT(real_length_key, n_members);
     SET_DICT_FROM_INT(unnamed_fields_key, n_unnamed_members);
 
+    _fields = PyTuple_New(desc->n_in_sequence);
+    if (!_fields)
+        return -1;
+    for (i = 0; i != desc->n_in_sequence; ++i) {
+        PyObject *field = PyUnicode_FromString(members[i].name);
+        PyTuple_SET_ITEM(_fields, i, field);
+    }
+    if (PyDict_SetItemString(dict, _fields_key, _fields) < 0) {
+        Py_DECREF(_fields);
+        return -1;
+    }
+    Py_DECREF(_fields);
+
     return 0;
 }
 
@@ -417,7 +433,8 @@
 {
     if (_PyUnicode_FromId(&PyId_n_sequence_fields) == NULL
         || _PyUnicode_FromId(&PyId_n_fields) == NULL
-        || _PyUnicode_FromId(&PyId_n_unnamed_fields) == NULL)
+        || _PyUnicode_FromId(&PyId_n_unnamed_fields) == NULL
+        || _PyUnicode_FromId(&PyId__fields) == NULL)
         return -1;
 
     return 0;