_common.py 文件源码

def make_logging_level_names_consistent():
    """Rename the standard library's logging levels to match Twisted's.

    Twisted's new logging system in `twisted.logger` that is.
    """
    for level in list(logging._levelToName):
        if level == logging.NOTSET:
            # When the logging level is not known in Twisted it's rendered as
            # a hyphen. This is not a common occurrence with `logging` but we
            # cater for it anyway.
            name = "-"
        elif level == logging.WARNING:
            # "Warning" is more consistent with the other level names than
            # "warn", so there is a fault in Twisted here. However it's easier
            # to change the `logging` module to match Twisted than vice-versa.
            name = "warn"
        else:
            # Twisted's level names are all lower-case.
            name = logging.getLevelName(level).lower()
        # For a preexisting level this will _replace_ the name.
        logging.addLevelName(level, name)