python之python3安装pandas插件出现Could not import the lzma module.

1、错误如下：

 
 
   
   
   
   

    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      

       
       
       
       
     
     >>> import pandas
    
    
      
      
      
      
   
   
     
     
     
     
    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      

       
       
       
       
     
     /usr/local/python3/
     
     lib/python3
     
     .7/site-packages/pandas/compat/__init__.py:
     
     85: UserWarning: Could 
     
     not import the lzma 
     
     module. Your installed Python 
     
     is incomplete. Attempting 
     
     to use lzma compression will result 
     
     in a RuntimeError.
    
    
      
      
      
      
   
   
     
     
     
     
    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      

       
       
       
       
     
       warnings.warn(msg)
    
    
      
      
      
      
   
   
     
     
     
     
    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      

       
       
       
       
     
     /usr/local/python3/
     
     lib/python3
     
     .7/site-packages/pandas/compat/__init__.py:
     
     85: UserWarning: Could 
     
     not import the lzma 
     
     module. Your installed Python 
     
     is incomplete. Attempting 
     
     to use lzma compression will result 
     
     in a RuntimeError.
    
    
      
      
      
      
   
   
     
     
     
     
    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      

       
       
       
       
     
       warnings.warn(msg)
    
    
      
      
      
      
   
   
     
     
     
     
   
   
   
   
 
 
   
   
   
   

如下图所示：

2、安装lzma模块使用：python -m pip install backports.lzma，如下图所示：

3、然后找到/usr/local/python3/lib/python3.7目录（机器不同，目录也有所不同，可以通过which命令来查找当前运行python是使用的那个目录的），然后编辑lzma.py，将：

 
 
   
   
   
   

    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      

     
     from _lzma 
     
     import *
    
    
      
      
      
      
   
   
     
     
     
     
    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      

     
     from _lzma 
     
     import _encode_filter_properties, _decode_filter_properties
    
    
      
      
      
      
   
   
     
     
     
     
   
   
   
   
 
 
   
   
   
   

如下图所示：

更改为：

 
 
   
   
   
   

    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      

     
     try:
    
    
      
      
      
      
   
   
     
     
     
     
    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      
    
     
     from _lzma 
     
     import *
    
    
      
      
      
      
   
   
     
     
     
     
    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      
    
     
     from _lzma 
     
     import _encode_filter_properties, _decode_filter_properties
    
    
      
      
      
      
   
   
     
     
     
     
    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      

     
     except ImportError:
    
    
      
      
      
      
   
   
     
     
     
     
    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      
    
     
     from backports.lzma 
     
     import *
    
    
      
      
      
      
   
   
     
     
     
     
    
    
    
    

   
   
     
     
     
     

    
    
      
      
      
      

   
   
     
     
     
     
   
   
     
     
     
     

    
    
      
      
      
      
    
     
     from backports.lzma 
     
     import _encode_filter_properties, _decode_filter_properties
    
    
      
      
      
      
   
   
     
     
     
     
   
   
   
   
 
 
   
   
   
   

如下图所示：

4、保存退出，然后在次import，如下图所示：