log.py 文件源码

def __call__(self, message, verbosity):
        """Log message that has verbosity importance

        message can be a string, which is logged as-is, or a function,
        which is then called and should return the string to be
        logged.  We do it this way in case producing the string would
        take a significant amount of CPU.

        """
        if verbosity > self.verbosity and verbosity > self.term_verbosity:
            return

        if not (type(message) is types.StringType
                or type(message) is types.UnicodeType):
            assert type(message) is types.FunctionType
            message = message()

        if verbosity <= self.verbosity: self.log_to_file(message)
        if verbosity <= self.term_verbosity:
            self.log_to_term(message, verbosity)