Index: Doc/library/datetime.rst
===================================================================
--- Doc/library/datetime.rst	(révision 67068)
+++ Doc/library/datetime.rst	(copie de travail)
@@ -285,6 +285,13 @@
     >>> abs(three_years - ten_years) == 2 * three_years + year
     True
 
+Instance methods:
+
+.. method:: timedelta.toseconds()
+
+   Returns the total number of seconds this timedelta object represents.
+   This is equivalent to (timedelta.days * 3600 * 24) + timedelta.seconds
+   + timedelta.microseconds / 1000000.0.
 
 .. _datetime-date:
 
Index: Lib/test/test_datetime.py
===================================================================
--- Lib/test/test_datetime.py	(révision 67068)
+++ Lib/test/test_datetime.py	(copie de travail)
@@ -474,6 +474,10 @@
         self.assertEqual(str(t3), str(t4))
         self.assertEqual(t4.as_hours(), -1)
 
+    def test_toseconds(self):
+        self.assertEqual(timedelta(days=3, seconds=2, microseconds=1).toseconds(), 259202.000001)
+        self.assertEqual(timedelta(days=999999999, microseconds=1).toseconds(), 86399999913600.0)
+
 #############################################################################
 # date tests
 
Index: Modules/datetimemodule.c
===================================================================
--- Modules/datetimemodule.c	(révision 67068)
+++ Modules/datetimemodule.c	(copie de travail)
@@ -2094,6 +2094,39 @@
 	return Py_BuildValue("ON", Py_TYPE(self), delta_getstate(self));
 }
 
+static PyObject *
+delta_toseconds(PyDateTime_Delta* self)
+{
+	PyObject        *t1, *t2, *t3;
+	PyObject        *secs;
+	PyObject        *retval;
+
+	secs = PyFloat_FromDouble(GET_TD_SECONDS(self));
+
+	t1 = PyFloat_FromDouble(GET_TD_DAYS(self));
+	t2 = PyFloat_FromDouble(3600*24);
+	t3 = PyNumber_Multiply(t1, t2);
+	Py_DECREF(t1);
+	Py_DECREF(t2);
+
+	retval = PyNumber_Add(secs, t3);
+	Py_DECREF(secs);
+	Py_DECREF(t3);
+	secs = retval;
+
+	t1 = PyFloat_FromDouble(GET_TD_MICROSECONDS(self));
+	t2 = PyFloat_FromDouble(1e6);
+	t3 = PyNumber_Divide(t1, t2);
+	Py_DECREF(t1);
+	Py_DECREF(t2);
+
+	retval = PyNumber_Add(secs, t3);
+	Py_DECREF(secs);
+	Py_DECREF(t3);
+
+	return retval;
+}
+
 #define OFFSET(field)  offsetof(PyDateTime_Delta, field)
 
 static PyMemberDef delta_members[] = {
@@ -2113,6 +2146,8 @@
 	{"__reduce__", (PyCFunction)delta_reduce,     METH_NOARGS,
 	 PyDoc_STR("__reduce__() -> (cls, state)")},
 
+        {"toseconds", (PyCFunction)delta_toseconds,         METH_NOARGS,
+         PyDoc_STR("Total number of seconds represented by this timedelta object.")},
 	{NULL,	NULL},
 };