如何屏蔽Tensorflow输出的调试和警告信息

import os
import tensorflow as tf
os.environ['TF_CPP_MIN_LOG_LEVEL'] = '3'

在tensorflow0.12以上版本中有效，其中： 

   
   
   
   

    
    
    
    

     
     
     
     

      
      
      
      

     
     
     
     
     
     
     
     

      
      
      
      

       
       
       
       0 = all messages are logged (
       
       
       
       default behavior)
      
      
      
      
     
     
     
     
    
    
    
    

     
     
     
     

      
      
      
      

     
     
     
     
     
     
     
     

      
      
      
      

       
       
       
       1 = INFO messages are 
       
       
       
       not printed
      
      
      
      
     
     
     
     
    
    
    
    

     
     
     
     

      
      
      
      

     
     
     
     
     
     
     
     

      
      
      
      

       
       
       
       2 = INFO 
       
       
       
       and WARNING messages are 
       
       
       
       not printed
      
      
      
      
     
     
     
     
    
    
    
    

     
     
     
     

      
      
      
      

     
     
     
     
     
     
     
     

      
      
      
      

       
       
       
       3 = INFO, WARNING, 
       
       
       
       and 
       
       
       
       ERROR messages are 
       
       
       
       not printed