'Emit a record.
If a formatter is specified, it is used to format the record.
The record is then written to the stream with a trailing newline.  If
exception information is present, it is formatted using
traceback.print_exception and appended to the stream.  If the stream
has an \'encoding\' attribute, it is used to determine how to do the
output to the stream.'

def emit(self, record):

    try:
        msg = self.format(record)
        stream = self.stream
        stream.write(msg)
        stream.write(self.terminator)
        self.flush()
    except Exception:
        self.handleError(record)
