[Bug 2136003] [NEW] error message when closing update-manager from terminal

[Guybrush88]

Public bug reported:

On Xubuntu 26.04, I closed update-manager by using CTRL-C after having
launched it on a terminal, and I got this error message:

Traceback (most recent call last):
  File "/usr/bin/update-manager", line 127, in <module>
    Gtk.main()
    ~~~~~~~~^^
  File "/usr/lib/python3/dist-packages/gi/overrides/Gtk.py", line 1864, in main
    register_sigint_fallback(Gtk.main_quit),
    ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
  File "/usr/lib/python3.13/contextlib.py", line 148, in __exit__
    next(self.gen)
    ~~~~^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/gi/_ossighelper.py", line 237, in register_sigint_fallback
    signal.default_int_handler(signal.SIGINT, None)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
--- 
ProblemType: Bug
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: LXQt
DistroRelease: Ubuntu 26.04
GsettingsChanges:
 b'com.ubuntu.update-manager' b'launch-count' b'1'
 b'com.ubuntu.update-manager' b'launch-time' b'int64 1760725034'
InstallationDate: Installed on 2025-09-09 (95 days ago)
InstallationMedia: Lubuntu 25.04 "Plucky Puffin" - Release amd64 (20250417)
Package: update-manager 1:25.10.1
PackageArchitecture: all
ProcVersionSignature: Ubuntu 6.17.0-6.6-generic 6.17.1
Tags: resolute
Uname: Linux 6.17.0-6-generic x86_64
UpgradeStatus: Upgraded to resolute on 2025-10-17 (57 days ago)
UserGroups: N/A
_MarkForUpload: True

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-collected resolute

** Tags added: apport-collected resolute

** Description changed:

  On Xubuntu 26.04, I closed update-manager by using CTRL-C after having
  launched it on a terminal, and I got this error message:
  
  Traceback (most recent call last):
    File "/usr/bin/update-manager", line 127, in <module>
      Gtk.main()
      ~~~~~~~~^^
    File "/usr/lib/python3/dist-packages/gi/overrides/Gtk.py", line 1864, in main
      register_sigint_fallback(Gtk.main_quit),
      ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
    File "/usr/lib/python3.13/contextlib.py", line 148, in __exit__
      next(self.gen)
      ~~~~^^^^^^^^^^
    File "/usr/lib/python3/dist-packages/gi/_ossighelper.py", line 237, in register_sigint_fallback
      signal.default_int_handler(signal.SIGINT, None)
      ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
+ --- 
+ ProblemType: Bug
+ ApportVersion: 2.33.1-0ubuntu3
+ Architecture: amd64
+ CasperMD5CheckResult: unknown
+ CurrentDesktop: LXQt
+ DistroRelease: Ubuntu 26.04
+ GsettingsChanges:
+  b'com.ubuntu.update-manager' b'launch-count' b'1'
+  b'com.ubuntu.update-manager' b'launch-time' b'int64 1760725034'
+ InstallationDate: Installed on 2025-09-09 (95 days ago)
+ InstallationMedia: Lubuntu 25.04 "Plucky Puffin" - Release amd64 (20250417)
+ Package: update-manager 1:25.10.1
+ PackageArchitecture: all
+ ProcVersionSignature: Ubuntu 6.17.0-6.6-generic 6.17.1
+ Tags: resolute
+ Uname: Linux 6.17.0-6-generic x86_64
+ UpgradeStatus: Upgraded to resolute on 2025-10-17 (57 days ago)
+ UserGroups: N/A
+ _MarkForUpload: True

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https://bugs.launchpad.net/bugs/2136003

Title:
  error message when closing update-manager from terminal

Status in update-manager package in Ubuntu:
  New

Bug description:
  On Xubuntu 26.04, I closed update-manager by using CTRL-C after having
  launched it on a terminal, and I got this error message:

  Traceback (most recent call last):
    File "/usr/bin/update-manager", line 127, in <module>
      Gtk.main()
      ~~~~~~~~^^
    File "/usr/lib/python3/dist-packages/gi/overrides/Gtk.py", line 1864, in main
      register_sigint_fallback(Gtk.main_quit),
      ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
    File "/usr/lib/python3.13/contextlib.py", line 148, in __exit__
      next(self.gen)
      ~~~~^^^^^^^^^^
    File "/usr/lib/python3/dist-packages/gi/_ossighelper.py", line 237, in register_sigint_fallback
      signal.default_int_handler(signal.SIGINT, None)
      ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
  --- 
  ProblemType: Bug
  ApportVersion: 2.33.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: LXQt
  DistroRelease: Ubuntu 26.04
  GsettingsChanges:
   b'com.ubuntu.update-manager' b'launch-count' b'1'
   b'com.ubuntu.update-manager' b'launch-time' b'int64 1760725034'
  InstallationDate: Installed on 2025-09-09 (95 days ago)
  InstallationMedia: Lubuntu 25.04 "Plucky Puffin" - Release amd64 (20250417)
  Package: update-manager 1:25.10.1
  PackageArchitecture: all
  ProcVersionSignature: Ubuntu 6.17.0-6.6-generic 6.17.1
  Tags: resolute
  Uname: Linux 6.17.0-6-generic x86_64
  UpgradeStatus: Upgraded to resolute on 2025-10-17 (57 days ago)
  UserGroups: N/A
  _MarkForUpload: True

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