dekun
32 lines
798 B
Python
32 lines
798 B
Python
"""日历日分组键（开仓时间窗已取消，由期权剩余时长约束）。"""
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from __future__ import annotations
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from datetime import datetime
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from zoneinfo import ZoneInfo
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_SH = ZoneInfo("Asia/Shanghai")
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def now_sh(now: datetime | None = None) -> datetime:
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return (now or datetime.now(tz=_SH)).astimezone(_SH)
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def window_key(now: datetime | None = None) -> str:
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"""组号日期键：日历日 YYYYMMDD。"""
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return now_sh(now).strftime("%Y%m%d")
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def can_open_new(
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now: datetime | None = None,
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*,
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open_hhmm: str = "16:00",
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stop_hhmm: str = "08:00",
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) -> bool:
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"""开仓窗已取消，始终允许（仍受期权剩余时长/杠杆筛选）。"""
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return True
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def group_date_ymd(now: datetime | None = None) -> str:
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return window_key(now)
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