Index: Modules/timemodule.c
===================================================================
--- Modules/timemodule.c	(revision 87738)
+++ Modules/timemodule.c	(working copy)
@@ -355,21 +355,17 @@
     if (y < 1900) {
         PyObject *accept = PyDict_GetItemString(moddict,
                                                 "accept2dyear");
-        if (accept == NULL || !PyLong_CheckExact(accept) ||
-            !PyObject_IsTrue(accept)) {
-            PyErr_SetString(PyExc_ValueError,
-                            "year >= 1900 required");
-            return 0;
+        if (accept != NULL && PyObject_IsTrue(accept)) {
+            if (69 <= y && y <= 99)
+                y += 1900;
+            else if (0 <= y && y <= 68)
+                y += 2000;
+            else {
+                PyErr_SetString(PyExc_ValueError,
+                                "year out of range");
+                return 0;
+            }
         }
-        if (69 <= y && y <= 99)
-            y += 1900;
-        else if (0 <= y && y <= 68)
-            y += 2000;
-        else {
-            PyErr_SetString(PyExc_ValueError,
-                            "year out of range");
-            return 0;
-        }
     }
     p->tm_year = y - 1900;
     p->tm_mon--;