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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 _openResources(self):
 """ Uses numpy.loadtxt to open the underlying file. """

        try:
            rate, data = scipy.io.wavfile.read(self._fileName, mmap=True)
        except Exception as ex:
            logger.warning(ex)
            logger.warning("Unable to read wav with memmory mapping. Trying without now.")
            rate, data = scipy.io.wavfile.read(self._fileName, mmap=False)

        self._array = data
        self.attributes['rate'] = rate