我寻找了类似的问题，但我找不到一个有帮助的问题，所以我会问自己。在apt-get purge python意识到我做了什么之后，我不得不手动安装在该过程中删除的所有软件包。现在一切似乎都在运行。但是当我用 evince 打开或滚动浏览 *.pdf 文件时，我得到这样的错误日志：
Feb 16 10:13:34 enterprise kernel: [782525.032637] audit: type=1400 audit(1487236414.580:618): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/bin/evince-thumbnailer//sanitized_helper" pid=24903 comm="apparmor_parser"
Feb 16 10:13:42 enterprise kernel: [782532.988421] audit: type=1400 audit(1487236422.536:619): apparmor="DENIED" operation="open" profile="/usr/bin/evince" name="/etc/xfce4/defaults.list" pid=25056 comm="evince" requested_mask="r" denied_mask="r" fsuid=2126 ouid=0
Feb 16 10:13:42 enterprise kernel: [782533.090915] audit: type=1400 audit(1487236422.636:620): apparmor="DENIED" operation="link" profile="/usr/bin/evince" name="/run/user/2126/gvfs-metadata/.openRX20VY" pid=25056 comm="evince" requested_mask="l" denied_mask="l" fsuid=2126 ouid=2126 target="/run/user/2126/gvfs-metadata/root-8b3f7bff.log"
Feb 16 10:13:42 enterprise kernel: [782533.090931] audit: type=1400 audit(1487236422.636:621): apparmor="DENIED" operation="open" profile="/usr/bin/evince" name="/run/user/2126/gvfs-metadata/root-8b3f7bff.log" pid=25056 comm="evince" requested_mask="r" denied_mask="r" …