Bug#934454: Exception: 'NoneType' object has no attribute 'dependencies' if a package is disabled by pinning

[StalkR]

Hi,

+1 to Birger's question.
I just upgraded to buster (unattended-upgrades 1.11.2) and this bug
surprised me as well.
In the meantime, I patched locally with this:

grep -q 'if not pkg.candidate' /usr/bin/unattended-upgrade || sed -i
's/for dep in pkg.candidate.dependencies:/if not
pkg.candidate: return acc\n\0/' /usr/bin/unattended-upgrade

Thanks!

Bug#934454: Exception: 'NoneType' object has no attribute 'dependencies' if a package is disabled by pinning

[Birger Brunswiek]

Hi,

the Fix is in 1.13. Buster still has 1.11.2. Will this be fixed in
Buster as well?

Cheers
Birger

Bug#934454: Exception: 'NoneType' object has no attribute 'dependencies' if a package is disabled by pinning

[Bálint Réczey]

Control: fixed -1 1.13

Hi Gianluigi,

Gianluigi Tiesi  ezt írta (időpont: 2019. aug.
11., V, 10:00):
>
> Package: unattended-upgrades
> Version: 1.11.2
> Severity: important
>
> I've just upgraded to buster and /usr/bin/unattended-upgrade now fails with 
> an error:
>
> Exception: 'NoneType' object has no attribute 'dependencies'
>
>
> the problem is in transitive_dependencies():
>
> for dep in pkg.candidate.dependencies:
>
>
> pkg.candidate is None when the package is systemd (uninstalled).
>
> I have /etc/apt/preferences.d/systemd as follow:
>
> Package: systemd
> Pin: release *
> Pin-Priority: -1
>
> version in stretch of the package was working fine
>
>
> I've added:
>
> if pkg.candidate is None:
> return acc

Thanks, it is already fixed in almost the same way.

Cheers,
Balint

Bug#934454: Exception: 'NoneType' object has no attribute 'dependencies' if a package is disabled by pinning

[Gianluigi Tiesi]

Package: unattended-upgrades
Version: 1.11.2
Severity: important

I've just upgraded to buster and /usr/bin/unattended-upgrade now fails with an 
error:

Exception: 'NoneType' object has no attribute 'dependencies'


the problem is in transitive_dependencies():

for dep in pkg.candidate.dependencies:


pkg.candidate is None when the package is systemd (uninstalled).

I have /etc/apt/preferences.d/systemd as follow:

Package: systemd
Pin: release *
Pin-Priority: -1

version in stretch of the package was working fine


I've added:

if pkg.candidate is None:
return acc


before the for-loop

Regards


-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-9-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)

Versions of packages unattended-upgrades depends on:
ii  debconf [debconf-2.0]  1.5.73
ii  lsb-base   10.2019051400
ii  lsb-release10.2019051400
ii  python33.7.3-1
ii  python3-apt1.8.4
pn  python3-dbus   
pn  python3-distro-info
ii  ucf3.0038+nmu1
ii  xz-utils   5.2.4-1

Versions of packages unattended-upgrades recommends:
ii  cron [cron-daemon]  3.0pl1-134

Versions of packages unattended-upgrades suggests:
pn  bsd-mailx   
pn  default-mta | mail-transport-agent  
ii  needrestart 3.4-5
pn  powermgmt-base  
pn  python3-gi