diff options
Diffstat (limited to 'Modules/datetimemodule.c')
| -rw-r--r-- | Modules/datetimemodule.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Modules/datetimemodule.c b/Modules/datetimemodule.c index 3719a77..96c3e6d 100644 --- a/Modules/datetimemodule.c +++ b/Modules/datetimemodule.c @@ -4805,7 +4805,11 @@ datetimetz_astimezone(PyDateTime_DateTimeTZ *self, PyObject *args, resdst = call_dst(tzinfo, result, &none); if (resdst == -1 && PyErr_Occurred()) goto Fail; - /* None and 0 dst() results are the same to us here. Debatable. */ + if (none) { + PyErr_SetString(PyExc_ValueError, "astimezone(): utcoffset() " + "returned a duration but dst() returned None"); + goto Fail; + } total_added_to_result = resoff - resdst - selfoff; if (total_added_to_result != 0) { mm += total_added_to_result; |