bpo-15873: add '.fromisoformat' for date, time and datetime by deronnax · Pull Request #4841 · python/cpython

Expand Up @@ -1166,6 +1166,19 @@ def test_fromtimestamp(self): self.assertEqual(d.month, month) self.assertEqual(d.day, day)
def test_fromisoformat(self): self.assertEqual(self.theclass.fromisoformat('2014-12-31'), self.theclass(2014, 12, 31)) self.assertEqual(self.theclass.fromisoformat('4095-07-31'), self.theclass(4095, 7, 31))
with self.assertRaises(ValueError): self.theclass.fromisoformat('2014-12-011') with self.assertRaises(ValueError): self.theclass.fromisoformat('20141211') with self.assertRaises(ValueError): self.theclass.fromisoformat('043-12-01')
def test_insane_fromtimestamp(self): # It's possible that some platform maps time_t to double, # and that this test will fail there. This test should Expand Down Expand Up @@ -1976,6 +1989,18 @@ def test_utcfromtimestamp(self): got = self.theclass.utcfromtimestamp(ts) self.verify_field_equality(expected, got)
def test_fromisoformat(self): self.assertEqual(self.theclass.fromisoformat('2015-12-31T14:27:00'), self.theclass(2015, 12, 31, 14, 27, 0)) self.assertEqual(self.theclass.fromisoformat('2015-12-31 14:27:00'), self.theclass(2015, 12, 31, 14, 27, 0)) # lowercase 'T' date-time separator. Uncommon but tolerated (rfc 3339) self.assertEqual(self.theclass.fromisoformat('2015-12-31t14:27:00'), self.theclass(2015, 12, 31, 14, 27, 0))
with self.assertRaises(ValueError): self.theclass.fromisoformat('2015-01-07X00:00:00')
# Run with US-style DST rules: DST begins 2 a.m. on second Sunday in # March (M3.2.0) and ends 2 a.m. on first Sunday in November (M11.1.0). @support.run_with_tz('EST+05EDT,M3.2.0,M11.1.0') Expand Down Expand Up @@ -2517,6 +2542,42 @@ def test_isoformat(self): self.assertEqual(t.isoformat(timespec='microseconds'), "12:34:56.000000") self.assertEqual(t.isoformat(timespec='auto'), "12:34:56")
def test_fromisoformat(self): # basic self.assertEqual(self.theclass.fromisoformat('04:05:01.000123'), self.theclass(4, 5, 1, 123)) self.assertEqual(self.theclass.fromisoformat('00:00:00'), self.theclass(0, 0, 0)) # usec, rounding high self.assertEqual(self.theclass.fromisoformat('10:20:30.40000059'), self.theclass(10, 20, 30, 400001)) # usec, rounding low + long digits we don't care about self.assertEqual(self.theclass.fromisoformat('10:20:30.400003434'), self.theclass(10, 20, 30, 400003)) with self.assertRaises(ValueError): self.theclass.fromisoformat('12:00AM') with self.assertRaises(ValueError): self.theclass.fromisoformat('120000') with self.assertRaises(ValueError): self.theclass.fromisoformat('1:00') with self.assertRaises(ValueError): self.theclass.fromisoformat('17:54:43.')
def tz(h, m): return timezone(timedelta(hours=h, minutes=m))
self.assertEqual(self.theclass.fromisoformat('00:00:00Z'), self.theclass(0, 0, 0, tzinfo=timezone.utc)) # lowercase UTC timezone. Uncommon but tolerated (rfc 3339) self.assertEqual(self.theclass.fromisoformat('00:00:00z'), self.theclass(0, 0, 0, tzinfo=timezone.utc)) self.assertEqual(self.theclass.fromisoformat('00:00:00-00:00'), self.theclass(0, 0, 0, tzinfo=tz(0, 0))) self.assertEqual(self.theclass.fromisoformat('08:30:00.004255+02:30'), self.theclass(8, 30, 0, 4255, tz(2, 30))) self.assertEqual(self.theclass.fromisoformat('08:30:00.004255-02:30'), self.theclass(8, 30, 0, 4255, tz(-2, -30)))
def test_1653736(self): # verify it doesn't accept extra keyword arguments t = self.theclass(second=1) Expand Down