update check_time_args

Author: SmartManoj

Lib/_pydatetime.py

@@ -594,8 +594,8 @@ def _check_time_fields(hour, minute, second, microsecond, nanosecond, fold):
         raise ValueError(f"second must be in 0..59, not {second}")
     if not 0 <= microsecond <= 999999:
         raise ValueError(f"microsecond must be in 0..999999, not {microsecond}")
-    if not 0 <= nanosecond <= 999999999:
-        raise ValueError(f"nanosecond must be in 0..999999999, not {nanosecond}")
+    if not 0 <= nanosecond <= 999:
+        raise ValueError(f"nanosecond must be in 0..999, not {nanosecond}")
     if fold not in (0, 1):
         raise ValueError(f"fold must be either 0 or 1, not {fold}")
     return hour, minute, second, microsecond, nanosecond, fold

Modules/_datetimemodule.c

@@ -679,7 +679,7 @@ check_date_args(int year, int month, int day)
  * aren't, raise ValueError and return -1.
  */
 static int
-check_time_args(int h, int m, int s, int us, int fold)
+check_time_args(int h, int m, int s, int us, int ns, int fold)
 {
     if (h < 0 || h > 23) {
         PyErr_Format(PyExc_ValueError, "hour must be in 0..23, not %i", h);
@@ -698,6 +698,11 @@ check_time_args(int h, int m, int s, int us, int fold)
                      "microsecond must be in 0..999999, not %i", us);
         return -1;
     }
+    if (ns < 0 || ns > 999) {
+        PyErr_Format(PyExc_ValueError,
+                     "nanosecond must be in 0..999, not %i", ns);
+        return -1;
+    }
     if (fold != 0 && fold != 1) {
         PyErr_Format(PyExc_ValueError,
                      "fold must be either 0 or 1, not %i", fold);