common.py 文件源码

def is_number(s):
    """Determines if the input is numeric

    Args:
        s: The value to check.
    Returns:
        bool: ``True`` if the input is numeric, ``False`` otherwise.

    """
    try:
        float(s)
        return True
    except ValueError:
        pass

    try:
        import unicodedata
        unicodedata.numeric(s)
        return True
    except (TypeError, ValueError):
        pass

    return False
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