mycover@mycover:~/python-310/Python-3.10.0$ sudo apt update Get:1 https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic InRelease [64.4 kB] Hit:2 http://security.ubuntu.com/ubuntu bionic-security InRelease Hit:3 http://repo.mysql.com/apt/ubuntu bionic InRelease Hit:4 https://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic InRelease Hit:5 https://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic-updates InRelease Hit:6 https://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic-backports InRelease Hit:7 http://ppa.launchpad.net/deadsnakes/ppa/ubuntu bionic InRelease Fetched 64.4 kB in 1s (53.5 kB/s) Traceback (most recent call last): File "/usr/lib/cnf-update-db", line 8, in <module> from CommandNotFound.db.creator import DbCreator ModuleNotFoundError: No module named 'CommandNotFound' Reading package lists... Done E: Problem executing scripts APT::Update::Post-Invoke-Success 'if /usr/bin/test -w /var/lib/command-not-found/ -a -e /usr/lib/cnf-update-db; then /usr/lib/cnf-update-db > /dev/null; fi' E: Sub-process returned an error code mycover@mycover:~/python-310/Python-3.10.0$