Package: apt-listchanges
Version: 4.7
Severity: important

Dear Maintainer,

since v4.6 entered testing I noticed extremely high CPU temperatures on my
laptop (97°C while writing down this bug report); apt-listchanges hogs one CPU
thread, which stays at 100% with the command

apt-get -qq changelog [packagename]=[version]

I currently have 5835 packages installed on my laptop and each command requires
more than 9 seconds; if that command needs to be run for each installed
package, it means that at least 14.5 hours with a CPU at 90+°C are required to
completely populate the database and this, frankly speaking, doesn't seem
acceptable to me.

v3.x version of apt-listchanges didn't have such issues.

Thanks


-- Package-specific info:
==> /etc/apt/listchanges.conf <==
[apt]
frontend=pager
which=news
email_address=root
email_format=text
confirm=false
headers=false
reverse=false
save_seen=/var/lib/apt/listchanges


-- System Information:
Debian Release: trixie/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'stable-security'), (500, 'proposed-updates'), (500, 'oldstable-security'), (500, 'oldoldstable'), (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to it_IT.UTF-8), LANGUAGE=it
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages apt-listchanges depends on:
ii apt 2.9.8
ii debconf [debconf-2.0] 1.5.87
ii python3 3.12.6-1
ii python3-apt 2.9.0+b1
ii python3-debconf 1.5.87
ii sensible-utils 0.0.24
ii ucf 3.0043+nmu1

apt-listchanges recommends no packages.

Versions of packages apt-listchanges suggests:
ii chromium [www-browser] 129.0.6668.70-1
ii exim4-daemon-light [mail-transport-agent] 4.98-1
ii falkon [www-browser] 24.08.1-1
ii firefox [www-browser] 130.0.1-1
ii gnome-terminal [x-terminal-emulator] 3.54.0-1
ii konqueror [www-browser] 4:22.12.3-2+b3
ii konsole [x-terminal-emulator] 4:23.08.1-1+b1
ii lynx [www-browser] 2.9.2-1
ii python3-gi 3.48.2-1+b1
ii w3m [www-browser] 0.5.3+git20230121-2+b3
ii xterm [x-terminal-emulator] 394-1

-- debconf-show failed

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