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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def read_ready(self):
 """ Returns true if data is buffered and ready to be read from this feeder. A ``False`` result does not mean that the feeder has closed; it means you may need to wait before more data arrives. :return: ``True`` if a `read` call would immediately return at least one byte; ``False`` otherwise. """

        self._lock.acquire()
        try:
            if len(self._buffer) == 0:
                return False
            return True
        finally:
            self._lock.release()