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

1、错误如下:


 
 
   
   
   
   
  1. >>> import pandas
  2. /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.
  3. warnings.warn(msg)
  4. /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.
  5. 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:


 
 
   
   
   
   
  1. from _lzma import *
  2. from _lzma import _encode_filter_properties, _decode_filter_properties

如下图所示:

更改为:


 
 
   
   
   
   
  1. try:
  2. from _lzma import *
  3. from _lzma import _encode_filter_properties, _decode_filter_properties
  4. except ImportError:
  5. from backports.lzma import *
  6. 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:

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