import time, sys
import numpy as np


class AverageMeter(object):     
  """Computes and stores the average and current value"""    
  def __init__(self):   
    self.reset()
  
  def reset(self):
    self.val   = 0.0
    self.avg   = 0.0
    self.sum   = 0.0
    self.count = 0.0
  
  def update(self, val, n=1): 
    self.val = val    
    self.sum += val * n     
    self.count += n
    self.avg = self.sum / self.count    

  def __repr__(self):
    return ('{name}(val={val}, avg={avg}, count={count})'.format(name=self.__class__.__name__, **self.__dict__))
