[Bug 1554365] Re: UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 2886: ordinal not in range(128)

[Daniel Kraft]

This is the traceback from the logs in 16.04:

apt.systemd.daily[957]: Traceback (most recent call last):
apt.systemd.daily[957]:   File "/usr/bin/unattended-upgrade", line 1473, in <module>
apt.systemd.daily[957]:     main(options)
apt.systemd.daily[957]:   File "/usr/bin/unattended-upgrade", line 1411, in main
apt.systemd.daily[957]:     log_content = get_dpkg_log_content(logfile_dpkg, install_start_time)
apt.systemd.daily[957]:   File "/usr/bin/unattended-upgrade", line 1079, in get_dpkg_log_content
apt.systemd.daily[957]:     for line in fp.readlines():
apt.systemd.daily[957]:   File "/usr/lib/python3.5/codecs.py", line 321, in decode
apt.systemd.daily[957]:     (result, consumed) = self._buffer_decode(data, self.errors, final)
apt.systemd.daily[957]: UnicodeDecodeError: 'utf-8' codec can't decode byte 0xfc in position 758: invalid start byte

Could it be that dpkg logs according to locale settings? These are the
ones on this host:

LANG=de_DE
LANGUAGE=de_DE:
LC_CTYPE=de_DE.UTF-8
LC_NUMERIC="de_DE"
LC_TIME="de_DE"
LC_COLLATE="de_DE"
LC_MONETARY="de_DE"
LC_MESSAGES="de_DE"
LC_PAPER="de_DE"
LC_NAME="de_DE"
LC_ADDRESS="de_DE"
LC_TELEPHONE="de_DE"
LC_MEASUREMENT="de_DE"
LC_IDENTIFICATION="de_DE"
LC_ALL=

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https://bugs.launchpad.net/bugs/1554365

Title:
  UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position
  2886: ordinal not in range(128)

Status in unattended-upgrades package in Ubuntu:
  New

Bug description:
  I got this in the mail:

      From: Cron Daemon <root at ...>
      To: root at ...
      Subject: Cron <root at lims> test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
      Date: Thu, 25 Feb 2016 02:11:47 +0200 (EET)

      /etc/cron.daily/apt:
      Traceback (most recent call last):
        File "/usr/bin/unattended-upgrade", line 1255, in <module>
          main(options)
        File "/usr/bin/unattended-upgrade", line 1205, in main
          pkgs, pkg_install_success, pkgs_kept_back, mem_log, logfile_dpkg)
        File "/usr/bin/unattended-upgrade", line 752, in send_summary_mail
          body += fp.read()
        File "/usr/lib/python3.4/encodings/ascii.py", line 26, in decode
          return codecs.ascii_decode(input, self.errors)[0]
      UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 2886: ordinal not in range(128)

  According to /var/log/apt/history.log.1.gz, the packages upgraded that
  day were

      Start-Date: 2016-02-25  02:06:22
      Upgrade: libgnutls-openssl27:amd64 (2.12.23-12ubuntu2.4, 2.12.23-12ubuntu2.5), libssl1.0.0:amd64 (1.0.1f-1ubuntu2.16, 1.0.1f-1ubuntu2.17), libvirt0:amd64 (1.2.2-0ubuntu13.1.16, 1.2.2-0ubuntu13.1.17), libssl-dev:amd64 (1.0.1f-1ubuntu2.16, 1.0.1f-1ubuntu2.17), ca-certificates:amd64 (20141019ubuntu0.14.04.1, 20160104ubuntu0.14.04.1), libgnutls26:amd64 (2.12.23-12ubuntu2.4, 2.12.23-12ubuntu2.5), libssl-doc:amd64 (1.0.1f-1ubuntu2.16, 1.0.1f-1ubuntu2.17), openssl:amd64 (1.0.1f-1ubuntu2.16, 1.0.1f-1ubuntu2.17)
      End-Date: 2016-02-25  02:06:36

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: unattended-upgrades 0.82.1ubuntu2.4
  Uname: Linux 2.6.32-042stab108.8 x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  Date: Tue Mar  8 08:26:05 2016
  PackageArchitecture: all
  ProcEnviron:
   LC_CTYPE=lt_LT.UTF-8
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=lt_LT.UTF-8
   SHELL=/bin/bash
  SourcePackage: unattended-upgrades
  UpgradeStatus: Upgraded to trusty on 2016-02-06 (30 days ago)

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