python 故障归纳

 

2021-03-05

 

• 错误描述：ModuleNotFoundError: No module named '_sqlite3'

  # 当前环境
  [root@test ~]# cat /etc/redhat-release 
  CentOS Linux release 7.9.2009 (Core)
  [root@test ~]# python3 -V
  Python 3.7.9
  # 报错信息
  ModuleNotFoundError: No module named '_sqlite3'
  

• 原因及解决办法：

  [root@test ~]# yum -y install sqlite-devel
  # 重新编译python3。步骤请移目另一篇文章：https://www.cnblogs.com/ccbloom/p/11478056.html
  

 

2021-03-08

 

• 错误描述：Could not import the lzma module

  # 当前环境
  [root@test ~]# cat /etc/redhat-release 
  CentOS Linux release 7.9.2009 (Core)
  [root@test ~]# python3 -V
  Python 3.7.9
  # 报错信息
  [root@test ~]# python3
  >>> import pandas
  /usr/local/python3/lib/python3.7/site-packages/pandas/compat/__init__.py:97: 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)
  

• 原因及解决办法：

  [root@test ~]# yum -y install xz-devel python-backports-lzma
  [root@test ~]# pip3 install -i https://pypi.tuna.tsinghua.edu.cn/simple backports.lzma
  [root@test ~]# cp /usr/local/python3/lib/python3.7/lzma.py{,.bak}
  [root@test ~]# vim /usr/local/python3/lib/python3.7/lzma.py
  # 找打如下两行
  from _lzma import *
  from _lzma import _encode_filter_properties, _decode_filter_properties
  # 更换为如下
  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
  # 恢复正常
  [root@test ~]# python3
  >>> import pandas
  

 

2021-03-11

 

• 错误描述：ModuleNotFoundError: No module named '_bz2'

  # 当前环境
  [root@test ~]# cat /etc/redhat-release 
  CentOS Linux release 7.9.2009 (Core)
  [root@test ~]# python3 -V
  Python 3.7.9
  # 报错信息
  ModuleNotFoundError: No module named '_bz2'
  

• 原因及解决办法：

  # 下载_bz2.cpython-37m-x86_64-linux-gnu.so文件
  ## 地址：https://pan.baidu.com/s/1Bp7cnb7knPL9EGQbznN4lA
  ## 提取码：qnae
  # 如果你的python版本是3.6，那就是36m，我的是python3.7，得把文件名改为37m
  [root@test ~]# mv _bz2.cpython-36m-x86_64-linux-gnu.so _bz2.cpython-37m-x86_64-linux-gnu.so
  [root@test ~]# chmod +x _bz2.cpython-37m-x86_64-linux-gnu.so
  [root@test ~]# mv _bz2.cpython-37m-x86_64-linux-gnu.so /usr/local/python3/lib/python3.7/lib-dynload
  # 如果是3.9，则需要yum安装bzip2-devel，然后重新编译python。
  

 

2021-03-15

 

• 错误描述：升级完pip之后，ModuleNotFoundError: No module named 'pip'

  # 当前环境
  [root@test ~]# cat /etc/redhat-release 
  CentOS Linux release 7.9.2009 (Core)
  [root@test ~]# python3 -V
  Python 3.7.9
  [root@test ~]# pip list
  ModuleNotFoundError: No module named 'pip'
  

• 原因及解决办法：可能是因为你没有按照提示命令去升级pip导致的，使用下列命令恢复，然后使用提示的命令去升级就可以了。

  [root@test ~]# python -m ensurepip
  [root@test ~]# python -m pip install --upgrade pip
  

 

2021-03-16

 

• 错误描述：RuntimeError: Decompression 'SNAPPY' not available

  # 当前环境
  [root@test ~]# cat /etc/redhat-release 
  CentOS Linux release 7.9.2009 (Core)
  [root@test ~]# python3 -V
  Python 3.7.9
  # 报错信息
  RuntimeError: Decompression 'SNAPPY' not available.  Options: ['GZIP', 'UNCOMPRESSED']
  

• 原因及解决办法：

  [root@test ~]# pip3 install -i https://mirrors.aliyun.com/pypi/simple/ python-snappy
  

 

2021-04-02

 

• 错误描述：ModuleNotFoundError: No module named '_tkinter'

  # 当前环境
  [root@test ~]# cat /etc/redhat-release 
  CentOS Linux release 7.9.2009 (Core)
  [root@test ~]# python3 -V
  Python 3.7.9
  # 报错信息
  ModuleNotFoundError: No module named '_tkinter'
  

• 原因及解决办法：

  [root@test ~]# yum -y install tk-devel
  # 重新编译python3。步骤请移目另一篇文章：https://www.cnblogs.com/ccbloom/p/11478056.html
  

 

2022-06-29

 

• 错误描述：

  # 当前环境
  [root@test ~]# cat /etc/redhat-release 
  CentOS Linux release 7.9.2009 (Core)
  [root@test ~]# python3 -V
  Python 3.7.9
  # 报错信息
  [root@test ~]# pyinstaller test.py
  OSError: Python library not found: libpython3.7.so.1.0, libpython3.7m.so.1.0, libpython3.7mu.so.1.0, libpython3.7m.so, libpython3.7.so
  

• 原因及解决办法：

  # 加上--enable-shared参数重新编译python3。
  ./configure --prefix=/usr/local/python3 --with-openssl=/usr/local/openssl --enable-shared --enable-optimizations
  # 添加动态库查询路径。
  [root@test ~]# echo "/usr/local/python3/lib" >>/etc/ld.so.conf
  [root@test ~]# dconfig
  

 

 
 

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