23 lines
596 B
Python
23 lines
596 B
Python
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"""工具函数"""
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from typing import Any, Dict
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import json
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from datetime import datetime
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def format_datetime(dt: datetime, fmt: str = "%Y-%m-%d %H:%M:%S") -> str:
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"""格式化日期时间"""
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return dt.strftime(fmt)
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def safe_json_loads(json_str: str, default: Any = None) -> Any:
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"""安全的JSON解析"""
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try:
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return json.loads(json_str)
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except (json.JSONDecodeError, TypeError):
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return default
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def dict_filter_none(data: Dict[str, Any]) -> Dict[str, Any]:
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"""过滤字典中的None值"""
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return {k: v for k, v in data.items() if v is not None}
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