在出现了许多安装损坏的问题之后update，我设法修复了这些问题（upgrade显然），dist-upgrade并且dist-release-upgrade到目前为止升级进展顺利。
现在它已更新，重新启动，但仍然，任何apt命令都建议我删除“未使用的”软件包，例如 python2.7 等：
bcrelay cmake-data default-libmysqlclient-dev ebtables gconf-service gconf-service-backend gconf2 gconf2-common gtk2-engines-pixbuf gtk2-engines-xfce
guile-2.0-libs imagemagick-common landscape-common libargon2-0 libart-2.0-2 libasprintf0v5 libavahi-glib1 libbind9-140 libbind9-160 libblas-common libbonobo2-0
libbonobo2-common libbonoboui2-0 libbonoboui2-common libboost-filesystem1.58.0 libboost-filesystem1.65.1 libboost-filesystem1.71.0 libboost-system1.58.0
libboost-system1.65.1 libcapnp-0.5.3 libcapnp-0.6.1 libcapnp-0.7.0 libcroco3 libcupsfilters1 libcupsimage2 libdns-export1100 libdns1100 libdns162 libegl1-mesa
libevent-2.1-6 libfftw3-single3 libgconf-2-4 libgcr-3-common libgdbm3 libgdbm5 libgfortran3 libgfortran4 libglade2-0 libgnome-2-0 libgnome-keyring-common
libgnome-keyring0 libgnome2-0 libgnome2-bin libgnome2-common libgnomecanvas2-0 libgnomecanvas2-common libgnomeui-0 libgnomeui-common libgnomevfs2-0
libgnomevfs2-common libhdf5-10 libical1a libical3 libicu60 libilmbase12 libip4tc0 libip6tc0 libiptc0 libirs160 libisc-export169 libisc160 libisc169 libisccc140
libisccc160 libisccfg140 libisccfg160 libisl19 libjpeg-progs libjpeg9 libjs-async libjson-c3 libjsoncpp1 libjte1 libkeybinder0 libllvm10 libllvm3.8 libllvm5.0
liblwres141 liblwres160 libmagickcore-6.q16-3 libmagickcore-6.q16-3-extra libmagickwand-6.q16-3 libmirclient9 libmircommon7 libmircore1 libmirprotobuf3
libmysqlclient-dev libntfs-3g88 libopenexr22 liborbit-2-0 libperl5.26 libplymouth4 libpococrypto50 libpocodata50 libpocodatamysql50 libpocodataodbc50
libpocodatasqlite50 libpocofoundation50 libpocojson50 libpocomongodb50 libpoconet50 libpoconetssl50 libpocoredis50 libpocoutil50 libpocoxml50 libpocozip50
libpoppler58 libpoppler73 libprocps6 libprotobuf-lite10 libprotobuf-lite17 libprotobuf-lite9v5 libpython-all-dev libpython2-dev libpython2.7-dev
libpython3.5-dev libpython3.6 libpython3.6-dev libpython3.6-minimal libpython3.6-stdlib libqrencode3 libreadline7 librhash0 libsane1 libsqlite3-dev libssl1.0.2
libthunarx-2-0 libtxc-dxtn-s2tc0 libusbmuxd4 libvte-common libvte9 libwayland-egl1-mesa libwebp5 libwebpmux1 libwebrtc-audio-processing-0 libwnck-common
libwnck22 libxfconf-0-2 libxfont1 linux-headers-4.4.0-193 linux-headers-4.4.0-193-generic linux-headers-4.4.0-209 linux-headers-4.4.0-209-generic
linux-image-4.4.0-193-generic linux-image-4.4.0-209-generic linux-modules-4.4.0-193-generic linux-modules-4.4.0-209-generic
linux-modules-extra-4.4.0-193-generic linux-modules-extra-4.4.0-209-generic mongodb-org-tools nplan orage orage-data python-all python-asn1crypto python-idna
python2.7-dev python3-appdirs python3-asn1crypto python3-automat python3-click python3-colorama python3-configobj python3-constantly python3-distlib
python3-filelock python3-hamcrest python3-hyperlink python3-incremental python3-pam python3-pyasn1 python3-pyasn1-modules python3-serial
python3-service-identity python3-twisted python3-twisted-bin python3-virtualenv python3-xdg python3-zope.interface python3.5-dev python3.6 python3.6-dev
python3.6-minimal python3.6-venv ttf-dejavu-core virtualenv xdelta3 xfce4-artwork xfce4-mount-plugin xfce4-volumed xscreensaver-data xubuntu-icon-theme
我听说删除 Python2.7 后系统会损坏。
但是，当我运行“python3”时，它会打开 Python 3.8.10 CLI。
autoremove上述包裹安全吗？
我运行 Ubuntu Server 20.04.3 LTS。
答案1
在 Ubuntu 20.04 上，python2.7 已移至universe存储库。系统使用python3.8版本（参见参考资料python3 -V），因此您可以安全地将其删除。