Issue#26616:Fixed a bug in datetime.astimezone() method.
diff --git a/Lib/test/datetimetester.py b/Lib/test/datetimetester.py
index 7743c67..b907164 100644
--- a/Lib/test/datetimetester.py
+++ b/Lib/test/datetimetester.py
@@ -3426,6 +3426,14 @@
self.assertEqual(dt, local)
self.assertEqual(local.strftime("%z %Z"), "-0400 EDT")
+ @support.run_with_tz('EST+05EDT,M3.2.0,M11.1.0')
+ def test_astimezone_default_near_fold(self):
+ # Issue #26616.
+ u = datetime(2015, 11, 1, 5, tzinfo=timezone.utc)
+ t = u.astimezone()
+ s = t.astimezone()
+ self.assertEqual(t.tzinfo, s.tzinfo)
+
def test_aware_subtract(self):
cls = self.theclass
diff --git a/Misc/NEWS b/Misc/NEWS
index 3baeeec..1127e37 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -94,6 +94,8 @@
Library
-------
+- Issue #26616: Fixed a bug in datetime.astimezone() method.
+
- Issue #21925: :func:`warnings.formatwarning` now catches exceptions on
``linecache.getline(...)`` to be able to log :exc:`ResourceWarning` emitted
late during the Python shutdown process.
diff --git a/Modules/_datetimemodule.c b/Modules/_datetimemodule.c
index e3de537..0e50023 100644
--- a/Modules/_datetimemodule.c
+++ b/Modules/_datetimemodule.c
@@ -4749,7 +4749,12 @@
PyObject *nameo = NULL;
const char *zone = NULL;
- delta = datetime_subtract((PyObject *)utc_time, PyDateTime_Epoch);
+ delta = new_delta(ymd_to_ord(GET_YEAR(utc_time), GET_MONTH(utc_time),
+ GET_DAY(utc_time)) - 719163,
+ 60 * (60 * DATE_GET_HOUR(utc_time) +
+ DATE_GET_MINUTE(utc_time)) +
+ DATE_GET_SECOND(utc_time),
+ 0, 0);
if (delta == NULL)
return NULL;
one_second = new_delta(0, 1, 0, 0);