8000 Avoid using floating points during timestamp-datetime conversions by hakanakyurek · Pull Request #591 · msgpack/msgpack-python · GitHub
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Avoid using floating points during timestamp-datetime conversions #591

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Merged
merged 4 commits into from
Apr 19, 2024
Merged

Avoid using floating points during timestamp-datetime conversions #591

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e92f68e
avoid using float to convert timestamp from and to datetime
hakanakyurek Apr 18, 2024
12d9cc0
removed floor division in from_datetime
hakanakyurek Apr 19, 2024
64c0e67
removed rounding for sub-second precision in to_datetime
hakanakyurek Apr 19, 2024
34ab273
1e3/10**3 --> 1000
hakanakyurek Apr 19, 2024
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removed rounding for sub-second precision in to_datetime
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@hakanakyurek
hakanakyurek committed Apr 19, 2024
commit 64c0e6797ffbe29c8c533cdf58a17d9ea64e1ad6
2 changes: 1 addition & 1 deletion msgpack/ext.py
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Expand Up @@ -158,7 +158,7 @@ def to_datetime(self):
"""
utc = datetime.timezone.utc
return datetime.datetime.fromtimestamp(0, utc) + datetime.timedelta(
seconds=self.seconds, microseconds=round(self.nanoseconds / 1e3)
seconds=self.seconds, microseconds=self.nanoseconds // 1e3
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Suggested change
seconds=self.seconds, microseconds=self.nanoseconds // 1e3
seconds=self.seconds, microseconds=self.nanoseconds // 1000

)

@staticmethod
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5 changes: 0 additions & 5 deletions test/test_timestamp.py
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Expand Up @@ -99,11 +99,6 @@ def test_timestamp_datetime():

assert Timestamp.from_datetime(ts).to_datetime() == ts

t2 = Timestamp(1713256989, 420318123)
t3 = Timestamp(1713256989, 420318499)
t4 = Timestamp(1713256989, 420318501)
assert t2.to_datetime() == t3.to_datetime() != t4.to_datetime()


def test_unpack_datetime():
t = Timestamp(42, 14)
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