code: def getLoadAvg(self):
          
          try:
              fp = open(loadavgFile, 'r')
              line = fp.readline()
              fp.close()
          except:
              raise IOError('Failed reading stats from file: %s' % loadavgFile)
          arr = line.split()
          if len(arr) >= 3:
              return [float(col) for col in arr[:3]]
          else:
              return None
docs: Return system Load Average.
          
          @return: List of 1 min, 5 min and 15 min Load Average figures.