python运行异常UserWarning:Could not import the lzma module .Your installed Python is incomplet

python运行异常UserWarning:Could not import the lzma module .Your installed Python is incomplete（import pandas）

• 错误提示:

>>> import pandas
/usr/local/python3.9/lib/python3.9/site-packages/pandas/compat/__init__.py:124: 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)

• 解决方法：

1. 安装backports.lzma

pip install backports.lzma

2. 找到安装的的lzma.py(在安装的python目录中的/lib/python3.*目录中，如：/usr/local/python3.9/lib/python3.9)。

3. 修改lzma.py文件：

将

from _lzma import *
from _lzma import _encode_filter_properties, _decode_filter_properties

修改为：

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