12 lines
355 B
Python
12 lines
355 B
Python
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from datetime import datetime, timezone
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def require_utc(value: datetime, field_name: str) -> datetime:
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if value.tzinfo is None:
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raise ValueError(f"{field_name} must include a timezone")
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return value.astimezone(timezone.utc)
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def to_iso_z(value: datetime) -> str:
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return require_utc(value, "datetime").strftime("%Y-%m-%dT%H:%M:%SZ")
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