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gh-129483: Make TestLocalTimeDisambiguation's time format locale independent #142193

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Merged
pganssle merged 4 commits into from
Dec 4, 2025
Merged

gh-129483: Make TestLocalTimeDisambiguation's time format locale independent #142193

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31a11cd
Force TestLocalTimeDisambiguation to run on LC_ALL=C
note35 Dec 2, 2025
b596d08
Change to update %c to the exact time format.
note35 Dec 3, 2025
7636bf5
Merge branch 'main' into gh-129483
gkirchou Dec 3, 2025
5d1a2eb
Merge branch 'main' into gh-129483
gkirchou Dec 4, 2025
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14 changes: 7 additions & 7 deletions Lib/test/datetimetester.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6300,21 +6300,21 @@ def test_vilnius_1941_fromutc(self):

gdt = datetime(1941, 6, 23, 20, 59, 59, tzinfo=timezone.utc)
ldt = gdt.astimezone(Vilnius)
self.assertEqual(ldt.strftime("%c %Z%z"),
self.assertEqual(ldt.strftime("%a %b %d %H:%M:%S %Y %Z%z"),
'Mon Jun 23 23:59:59 1941 MSK+0300')
self.assertEqual(ldt.fold, 0)
self.assertFalse(ldt.dst())

gdt = datetime(1941, 6, 23, 21, tzinfo=timezone.utc)
ldt = gdt.astimezone(Vilnius)
self.assertEqual(ldt.strftime("%c %Z%z"),
self.assertEqual(ldt.strftime("%a %b %d %H:%M:%S %Y %Z%z"),
'Mon Jun 23 23:00:00 1941 CEST+0200')
self.assertEqual(ldt.fold, 1)
self.assertTrue(ldt.dst())

gdt = datetime(1941, 6, 23, 22, tzinfo=timezone.utc)
ldt = gdt.astimezone(Vilnius)
self.assertEqual(ldt.strftime("%c %Z%z"),
self.assertEqual(ldt.strftime("%a %b %d %H:%M:%S %Y %Z%z"),
'Tue Jun 24 00:00:00 1941 CEST+0200')
self.assertEqual(ldt.fold, 0)
self.assertTrue(ldt.dst())
Expand All @@ -6324,22 +6324,22 @@ def test_vilnius_1941_toutc(self):

ldt = datetime(1941, 6, 23, 22, 59, 59, tzinfo=Vilnius)
gdt = ldt.astimezone(timezone.utc)
self.assertEqual(gdt.strftime("%c %Z"),
self.assertEqual(gdt.strftime("%a %b %d %H:%M:%S %Y %Z"),
'Mon Jun 23 19:59:59 1941 UTC')

ldt = datetime(1941, 6, 23, 23, 59, 59, tzinfo=Vilnius)
gdt = ldt.astimezone(timezone.utc)
self.assertEqual(gdt.strftime("%c %Z"),
self.assertEqual(gdt.strftime("%a %b %d %H:%M:%S %Y %Z"),
'Mon Jun 23 20:59:59 1941 UTC')

ldt = datetime(1941, 6, 23, 23, 59, 59, tzinfo=Vilnius, fold=1)
gdt = ldt.astimezone(timezone.utc)
self.assertEqual(gdt.strftime("%c %Z"),
self.assertEqual(gdt.strftime("%a %b %d %H:%M:%S %Y %Z"),
'Mon Jun 23 21:59:59 1941 UTC')

ldt = datetime(1941, 6, 24, 0, tzinfo=Vilnius)
gdt = ldt.astimezone(timezone.utc)
self.assertEqual(gdt.strftime("%c %Z"),
self.assertEqual(gdt.strftime("%a %b %d %H:%M:%S %Y %Z"),
'Mon Jun 23 22:00:00 1941 UTC')

def test_constructors(self):
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