log.py 文件源码

def __init__(self, format=None, date_format=None, max_width=79):
        """
        Initialize a new ``WrappingLogFormatter``.

        :Parameters:
            format : str
                The format to use, or ``None`` for the logging default

            date_format : str
                Date format, or ``None`` for the logging default

            max_width : int
                Maximum line width, or ``None`` to default to 79./
        """
        self.wrapper = textwrap.TextWrapper(width=max_width,
                                            subsequent_indent='    ')
        logging.Formatter.__init__(self, format, date_format)