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analytics/lib/time_utils.py
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Anders Kaseorg
ruff: Fix UP007 Use `X | Y` for type annotations.
14 июл 2024, 08:28
14 июл 2024, 08:28
531b34c
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from datetime import datetime, timedelta from analytics.lib.counts import CountStat from zerver.lib.timestamp import floor_to_day, floor_to_hour, verify_UTC # If min_length is None, returns end_times from ceiling(start) to floor(end), inclusive. # If min_length is greater than 0, pads the list to the left. # So informally, time_range(Sep 20, Sep 22, day, None) returns [Sep 20, Sep 21, Sep 22], # and time_range(Sep 20, Sep 22, day, 5) returns [Sep 18, Sep 19, Sep 20, Sep 21, Sep 22] def time_range( start: datetime, end: datetime, frequency: str, min_length: int | None ) -> list[datetime]: verify_UTC(start) verify_UTC(end) if frequency == CountStat.HOUR: end = floor_to_hour(end) step = timedelta(hours=1) elif frequency == CountStat.DAY: end = floor_to_day(end) step = timedelta(days=1) else: raise AssertionError(f"Unknown frequency: {frequency}") times = [] if min_length is not None: start = min(start, end - (min_length - 1) * step) current = end while current >= start: times.append(current) current -= step times.reverse() return times