22 lines
637 B
Python
22 lines
637 B
Python
def format_timestamp(
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seconds: float,
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always_include_hours: bool = False,
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decimal_marker: str = ".",
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) -> str:
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assert seconds >= 0, "non-negative timestamp expected"
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milliseconds = round(seconds * 1000.0)
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hours = milliseconds // 3_600_000
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milliseconds -= hours * 3_600_000
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minutes = milliseconds // 60_000
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milliseconds -= minutes * 60_000
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seconds = milliseconds // 1_000
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milliseconds -= seconds * 1_000
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hours_marker = f"{hours:02d}:" if always_include_hours or hours > 0 else ""
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return (
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f"{hours_marker}{minutes:02d}:{seconds:02d}{decimal_marker}{milliseconds:03d}"
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)
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