ModuleNotFoundError: No module n

今天 在fedora上安装redis 突然提示

Traceback (most recent call last):
  File "/usr/bin/dnf", line 57, in <module>
    from dnf.cli import main
  File "/usr/lib/python3.6/site-packages/dnf/__init__.py", line 31, in <module>
    import dnf.base
  File "/usr/lib/python3.6/site-packages/dnf/base.py", line 26, in <module>
    from dnf.comps import CompsQuery
  File "/usr/lib/python3.6/site-packages/dnf/comps.py", line 29, in <module>
    import dnf.util
  File "/usr/lib/python3.6/site-packages/dnf/util.py", line 32, in <module>
    import librepo
ModuleNotFoundError: No module named 'librepo'

百度后发现应该是之前使用conda安装tesserocr不小心把python3重装了，把之前的python3‵的librepo扩展弄没了
于是先安装librepo模块
https://rpmfind.net/linux/rpm2html/search.php?query=python3-librepo

rpm -ivh librepo-1.8.1-7.fc28.x86_64.rpm
rpm -ivh python3-librepo-1.8.1-7.fc28.x86_64.rpm

安装完后还是报错
参考一篇文章
https://stackoverflow.com/questions/48291272/no-module-librepo-after-installing-pytorch-on-fedora27

echo 'import sys;sys.path += ["/usr/lib64/python3.6/site-packages/", "/usr/lib64/python3.6/"]' | sudo tee /usr/lib/python3.6/site-packages/lib64.pth

参考

https://stackoverflow.com/questions/48944604/modulenotfounderror-no-module-named-librepo