我想卸载Python3并且只使用2.7
我输入到终端：
sudo apt-get remove python3 它给了我以下输出：
Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: fonts-dejavu-extra gir1.2-secret-1 icedtea-netx-common libbonobo2-0 libbonobo2-common libcpufreq0 libgconf2-4 libgif4 libgnome2-0 libgnome2-bin libgnome2-common libgnomevfs2-0 libgnomevfs2-common libidl-common libidl0 liborbit2 tzdata-java Use 'apt-get autoremove' to remove them. The following packages will be REMOVED: apparmor apport apport-gtk aptdaemon apturl apturl-common bluez bluez-alsa bluez-gstreamer checkbox checkbox-qt command-not-found deja-dup-backend-ubuntuone dh-python firefox flashplugin-installer foomatic-db-compressed-ppds friends friends-dispatcher friends-facebook friends-twitter gedit gnome-bluetooth gnome-control-center gnome-control-center-datetime gnome-control-center-signon gnome-control-center-unity gnome-menus gnome-orca gnome-user-share indicator-bluetooth indicator-cpufreq language-selector-common language-selector-gnome libfriends0 lightdm-remote-session-uccsconfigure lsb-release nautilus-share onboard onboard-data oneconf openprinting-ppds printer-driver-foo2zjs printer-driver-postscript-hp printer-driver-ptouch printer-driver-pxljr python-commandnotfound python-ubuntuone-client python-ubuntuone-control-panel python3 python3-apport python3-apt python3-aptdaemon python3-aptdaemon.gtk3widgets python3-aptdaemon.pkcompat python3-brlapi python3-cairo python3-chardet python3-commandnotfound python3-crypto python3-dbus python3-debian python3-defer python3-dirspec python3-distupgrade python3-feedparser python3-gdbm python3-gi python3-gi-cairo python3-httplib2 python3-louis python3-lxml python3-mako python3-markupsafe python3-oauthlib python3-oneconf python3-piston-mini-client python3-pkg-resources python3-problem-report python3-pyatspi python3-six python3-software-properties python3-speechd python3-uno python3-update-manager python3-xdg python3-xkit rhythmbox rhythmbox-mozilla rhythmbox-plugin-cdrecorder rhythmbox-plugin-magnatune rhythmbox-plugin-zeitgeist rhythmbox-plugins rhythmbox-ubuntuone sessioninstaller software-center software-center-aptdaemon-plugins software-properties-common software-properties-gtk system-config-printer-gnome thin-client-config-agent ttf-mscorefonts-installer ubuntu-desktop ubuntu-drivers-common ubuntu-minimal ubuntu-release-upgrader-core ubuntu-release-upgrader-gtk ubuntu-standard ubuntuone-client ubuntuone-control-panel ubuntuone-control-panel-qt ufw unattended-upgrades unity-lens-friends unity-lens-photos unity-scope-audacious unity-scope-calculator unity-scope-chromiumbookmarks unity-scope-clementine unity-scope-colourlovers unity-scope-devhelp unity-scope-firefoxbookmarks unity-scope-gdrive unity-scope-gmusicbrowser unity-scope-gourmet unity-scope-guayadeque unity-scope-home unity-scope-manpages unity-scope-musique unity-scope-openclipart unity-scope-texdoc unity-scope-tomboy unity-scope-virtualbox unity-scope-yelp unity-scope-zotero unity-tweak-tool update-manager update-manager-core update-notifier update-notifier-common usb-creator-common usb-creator-gtk webaccounts-extension-common xdiagnose xul-ext-ubufox xul-ext-unity xul-ext-webaccounts 0 upgraded, 0 newly installed, 147 to remove and 1 not upgraded. After this operation, 162 MB disk space will be freed. Do you want to continue [Y/n]? n
为什么要求我卸载所有其他东西？ 来自Linux菜鸟的问题：/
问题在于所谓的依赖关系。
这些应用程序依赖于“ python3 ”安装才能正常运行。
你仍然可以安装你想要的任何其他版本的python，但需要在命令行专门调用该版本。