9808b07bc5
Migrate to modern datetime API # PR Summary This small PR resolves the `datetime` library warnings: ```python 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). or datetime.datetime.utcnow() ``` Note that `.replace(tzinfo=None)` allows to keep the original behavior where the time appears as a naive UTC timestamp (i.e., without any timezone offset). Comparision: ```python # With .utcnow() or .now(datetime.timezone.utc).replace(tzinfo=None) Time,Idle 2025-05-14T15:40:25.013414,98.73417721518987 # With .now(datetime.timezone.utc) Time,Idle 2025-05-14T15:40:25.013414+00:00,98.73417721518987 ```
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