update delta_total_seconds

Author: SmartManoj

Lib/_pydatetime.py

@@ -827,8 +827,7 @@ def plural(n):
 
     def total_seconds(self):
         """Total seconds in the duration."""
-        return ((self.days * 86400 + self.seconds) * 10**6 +
-                self.microseconds) / 10**6 + self.nanoseconds / 10**9
+        return round(self.days * 86400 + self.seconds + self.microseconds * 1e-6 + self.nanoseconds * 1e-9, 9)
 
     # Read-only field accessors
     @property

Modules/_datetimemodule.c

@@ -3127,20 +3127,18 @@ delta_getstate(PyDateTime_Delta *self)
 static PyObject *
 delta_total_seconds(PyObject *op, PyObject *Py_UNUSED(dummy))
 {
-    PyObject *total_seconds;
-    PyObject *total_microseconds;
-    total_microseconds = delta_to_microseconds(PyDelta_CAST(op));
-    if (total_microseconds == NULL)
-        return NULL;
-
-    PyObject *current_mod = NULL;
-    datetime_state *st = GET_CURRENT_STATE(current_mod);
-
-    total_seconds = PyNumber_TrueDivide(total_microseconds, CONST_US_PER_SECOND(st));
-
-    RELEASE_CURRENT_STATE(st, current_mod);
-    Py_DECREF(total_microseconds);
-    return total_seconds;
+    PyDateTime_Delta *self = PyDelta_CAST(op);
+    int days = GET_TD_DAYS(self);
+    int seconds = GET_TD_SECONDS(self);
+    int microseconds = GET_TD_MICROSECONDS(self);
+    int nanoseconds = GET_TD_NANOSECONDS(self);
+    double total = (double)days * 86400.0
+                 + (double)seconds
+                 + (double)microseconds * 1e-6
+                 + (double)nanoseconds * 1e-9;
+    // round to 9 decimal places
+    total = round(total * 1e9) / 1e9;
+    return PyFloat_FromDouble(total);
 }
 
 static PyObject *