apt-listchanges 崩溃。我怎样才能得到电子邮件？

我做了一个apt full-upgrade它更新thermald。

通常，我会从 apt-listchanges 通过 exim4 收到一封电子邮件到 localhost。它工作了 2 天。

Get:1 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 thermald i386 1.7.0-5ubuntu5 [203 kB]
Fetched 203 kB in 0s (519 kB/s) 
apt-listchanges: Changelogs werden gelesen...
Traceback (most recent call last):
  File "/usr/bin/apt-listchanges", line 281, in <module>
    main(config)
  File "/usr/bin/apt-listchanges", line 145, in main
    _send_email(changes, lambda: _("apt-listchanges: changelogs for %s") % hostname)
  File "/usr/bin/apt-listchanges", line 267, in _send_email
    apt_listchanges.mail_changes(config, changes, subject_getter())
  File "/usr/share/apt-listchanges/apt_listchanges.py", line 65, in mail_changes
    'subject': subject})
  File "/usr/share/apt-listchanges/ALCLog.py", line 36, in info
    print(_("apt-listchanges: %(msg)s") % {'msg': msg}, file=sys.stdout);
UnicodeEncodeError: 'ascii' codec can't encode character '\xfc' in position 73: ordinal not in range(128)
(Reading database ... 381751 files and directories currently installed.)
Preparing to unpack .../thermald_1.7.0-5ubuntu5_i386.deb ...
Unpacking thermald (1.7.0-5ubuntu5) over (1.7.0-5ubuntu2) ...
Setting up thermald (1.7.0-5ubuntu5) ...
Processing triggers for dbus (1.12.2-1ubuntu1.1) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...

蟒蛇版本

python --version
Python 2.7.15+

和

python3 --version
Python 3.6.8

我不确定哪些信息很重要。

hostnamectl 
   Static hostname: beelzemon
         Icon name: computer-laptop
           Chassis: laptop
        Machine ID: acaecd284840b500117c175c571c9e28
           Boot ID: c583ba22cd6c4abdbf6627d82e26283d
  Operating System: Ubuntu 18.04.3 LTS
            Kernel: Linux 5.0.21-050021-generic
      Architecture: x86

我需要这个 Ukuu-Kernel 进行休眠。这里 如何再次从 apt-listchanges 获取电子邮件？

 head -n36 /usr/share/apt-listchanges/ALCLog.py
# vim:set fileencoding=utf-8 et ts=4 sts=4 sw=4:
#
#   apt-listchanges - Show changelog entries between the installed versions
#                     of a set of packages and the versions contained in
#                     corresponding .deb files
#
#   Copyright (C) 2016       Robert Luberda  <[email protected]>
#
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation; either version 2 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public
#   License along with this program; if not, write to the Free
#   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
#   MA 02111-1307 USA
#

import sys

from ALChacks import _

def error(msg):
    print(_("apt-listchanges: %(msg)s") % {'msg': msg}, file=sys.stderr);

def warning(msg):
    print(_("apt-listchanges warning: %(msg)s") % {'msg': msg}, file=sys.stderr);

def info(msg):
    print(_("apt-listchanges: %(msg)s") % {'msg': msg}, file=sys.stdout);