Public bug reported:
Title:
software-properties-qt crashes on launch with AttributeError:
Qt.PartiallyChecked on Kubuntu 26.04
Description:
Every time I launch software-properties-qt on Kubuntu 26.04, it immediately
crashes.
Steps to reproduce:
1. Open terminal
2. Run:
software-properties-qt
Expected result:
The Software Sources window opens normally.
Actual result:
The application crashes immediately with:
Traceback (most recent call last):
File "/usr/bin/software-properties-qt", line 130, in <module>
app = SoftwarePropertiesQt(datadir=data_dir, options=options, file=afile,
attachWinID=attachWinID)
File
"/usr/lib/python3/dist-packages/softwareproperties/qt/SoftwarePropertiesQt.py",
line 164, in __init__
self.show_distro()
~~~~~~~~~~~~~~~~^^
File
"/usr/lib/python3/dist-packages/softwareproperties/qt/SoftwarePropertiesQt.py",
line 376, in show_distro
child.setCheckState(Qt.PartiallyChecked)
^^^^^^^^^^^^^^^^^^^
AttributeError: type object 'Qt' has no attribute 'PartiallyChecked'
System:
* Kubuntu 26.04
* Happens every launch
* Installed via normal system packages
Additional information:
Possibly related to a Qt/PyQt API change where Qt.PartiallyChecked may now live
under Qt.CheckState.PartiallyChecked.
** Affects: software-properties (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
** Description changed:
Title:
software-properties-qt crashes on launch with AttributeError:
Qt.PartiallyChecked on Kubuntu 26.04
Description:
Every time I launch software-properties-qt on Kubuntu 26.04, it immediately
crashes.
Steps to reproduce:
1. Open terminal
2. Run:
- software-properties-qt
+ software-properties-qt
Expected result:
The Software Sources window opens normally.
Actual result:
The application crashes immediately with:
Traceback (most recent call last):
- File "/usr/bin/software-properties-qt", line 130, in <module>
- app = SoftwarePropertiesQt(datadir=data_dir, options=options, file=afile,
attachWinID=attachWinID)
- File
"/usr/lib/python3/dist-packages/softwareproperties/qt/SoftwarePropertiesQt.py",
line 164, in __init__
- self.show_distro()
- ~~~~~~~~~~~~~~~~^^
- File
"/usr/lib/python3/dist-packages/softwareproperties/qt/SoftwarePropertiesQt.py",
line 376, in show_distro
- child.setCheckState(Qt.PartiallyChecked)
- ^^^^^^^^^^^^^^^^^^^
+ File "/usr/bin/software-properties-qt", line 130, in <module>
+ app = SoftwarePropertiesQt(datadir=data_dir, options=options, file=afile,
attachWinID=attachWinID)
+ File
"/usr/lib/python3/dist-packages/softwareproperties/qt/SoftwarePropertiesQt.py",
line 164, in __init__
+ self.show_distro()
+ ~~~~~~~~~~~~~~~~^^
+ File
"/usr/lib/python3/dist-packages/softwareproperties/qt/SoftwarePropertiesQt.py",
line 376, in show_distro
+ child.setCheckState(Qt.PartiallyChecked)
+ ^^^^^^^^^^^^^^^^^^^
AttributeError: type object 'Qt' has no attribute 'PartiallyChecked'
System:
* Kubuntu 26.04
* Happens every launch
* Installed via normal system packages
Additional information:
Possibly related to a Qt/PyQt API change where Qt.PartiallyChecked may now
live under Qt.CheckState.PartiallyChecked.
-
- ProblemType: Bug
- DistroRelease: Ubuntu 26.04
- Package: software-properties-qt 0.120
- ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0
- Uname: Linux 7.0.0-15-generic x86_64
- ApportVersion: 2.34.0-0ubuntu2
- Architecture: amd64
- CasperMD5CheckResult: unknown
- CurrentDesktop: KDE
- Date: Mon May 25 17:12:02 2026
- InstallationDate: Installed on 2026-03-26 (60 days ago)
- InstallationMedia: Kubuntu 25.10 "Questing Quokka" - Release amd64 (20251007)
- PackageArchitecture: all
- SourcePackage: software-properties
- UpgradeStatus: Upgraded to resolute on 2026-05-22 (3 days ago)
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2154196
Title:
Software properties qt wont launch because of syntax errors in its
code - Kubuntu 26.04
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/2154196/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
