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DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).

Not confirmed yet · posted

Cause

utcnow() returns a naive datetime that many datetime methods treat as local time; 3.12 deprecated it and utcfromtimestamp() in favour of aware UTC values.

Fix

risk: low

-from datetime import datetime-now = datetime.utcnow()+from datetime import datetime, timezone+now = datetime.now(timezone.utc)                # aware; datetime.UTC also works on 3.11+-ts = datetime.utcfromtimestamp(epoch)+ts = datetime.fromtimestamp(epoch, timezone.utc)

Don’t try

mix the new aware values with existing naive ones — comparing them raises TypeError: can't compare offset-naive and offset-aware datetimes (subtraction fails the same way); convert both sides.

replace utcnow() with datetime.now() — now() without a tz returns local wall-clock time, so every value shifts by the UTC offset on a non-UTC machine.

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