Bug#893837: python-apt: FTBFS on all architectures (missing build-dep python3-distutils-extra?)

[Boyuan Yang <073plan@gmail.com>]

Source: python-apt
Version: 1.6.0~rc1
Severity: grave
Justification: renders package unusable

Dear Maintainer,

python-apt 1.6.0~rc1 FTBFS on every architectures.

Buildd logs indicate that a build-dependency (python3-distutils-extra) is
likely to be missing:

dh clean --with python2,python3,sphinxdoc
   dh_auto_clean
        python2.7-dbg setup.py clean -a
running clean
'build/lib.linux-x86_64-2.7-pydebug' does not exist -- can't clean it
'build/bdist.linux-x86_64' does not exist -- can't clean it
'build/scripts-2.7' does not exist -- can't clean it
        python3.6-dbg setup.py clean -a
Traceback (most recent call last):
  File "setup.py", line 9, in <module>
    from distutils.core import setup, Extension
ModuleNotFoundError: No module named 'distutils'

--
Regards,
Boyuan Yang



-- System Information:
Debian Release: buster/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'buildd-unstable'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.15.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=zh_CN.UTF-8, LC_CTYPE=zh_CN.UTF-8 (charmap=UTF-8), LANGUAGE= (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled