重新安装 Python，但 python 损坏 - 错误的解释器 (Linux Fedora)
所以我正在摆弄不同版本的python，以至于现在我什至无法按照建议此处，并且 python 不起作用。 任何命令上出现的错误实际上是：bash：/usr/bin/dnf：/usr/bin/python3：错误的解释器：权限被拒绝
我确实有python3.7、python3.9和/usr/lib 中的 python3.10 文件夹据我所知状况良好。
我能做些什么？
编辑：我当前的 /usr/bin/python3 指向一个目录而不是可执行文件...这可能是问题吗？
which python3 返回以下内容：
/usr/bin/which: no python3 in (/root/.local/bin:/root/bin:/home/dominik/.local/bin:/home/dominik/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/var/lib/snapd/snap/bin)
So I was messing around with different versions of python to the extent that now I cannot even do a dnf reinstall python, as suggested here, and python does not work.
The error which appears on any command really is: bash: /usr/bin/dnf: /usr/bin/python3: bad interpreter: Permission denied
I do have python3.7, python3.9, and python3.10 folders in /usr/lib which as far as I know are in somewhat good condition.
What can I do?
EDIT: my current /usr/bin/python3 points to a directory instead of an executable... could this be the problem?
which python3 returns the following:
/usr/bin/which: no python3 in (/root/.local/bin:/root/bin:/home/dominik/.local/bin:/home/dominik/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/var/lib/snapd/snap/bin)
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正如评论中所建议的，下载 dnf 配置使用的确切 rpm 包非常重要。这可以通过
rpm -qa python3找到。找到并下载此软件包后，使用 rpm -i 命令安装它。成功安装将创建 /usr/bin/python_version 文件夹。对我来说，它是 python3.10，所以 /usr/bin/python3.10。
完成此操作后，删除 /usr/bin/python3 中现有的符号链接，并链接到新创建的 python 版本。
dnf 和 python 现在应该可以工作了。
As suggested in the comments, it is important to download the exact rpm package that dnf is configured to use. This can be found by
rpm -qa python3.After finding and downloading this package, install it using the rpm -i command. A successful installation will create the /usr/bin/python_version folder. For me, it was python3.10, so /usr/bin/python3.10.
When this is done, remove the existing symlink at /usr/bin/python3, and instead link to the newly created python version.
dnf and python should now work.