3498dd7a4b
新增独立 xiaobai-datahub 服务（SQLite WAL、Tushare 盘后发布、/v1 契约和管理后台），不改现站页面与数据链路。 Co-authored-by: Cursor <cursoragent@cursor.com> Co-authored-by: multica-agent <github@multica.ai>
24 lines
578 B
Python
24 lines
578 B
Python
from __future__ import annotations
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import math
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from typing import Any
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def finite_number(value: Any, default: float | None = None) -> float | None:
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"""Return a finite float, or default (None means JSON null)."""
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if value is None or value == "":
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return default
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try:
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number = float(value)
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except (TypeError, ValueError):
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return default
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if not math.isfinite(number):
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return default
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return number
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def round4(value: float | None) -> float | None:
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if value is None:
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return None
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return round(float(value), 4)
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