[Bug 2154196] Re: Software properties qt wont launch because of syntax errors in its code - Kubuntu 26.04

[Andy Glaros]

** 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
  
  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.
+ 
+ Package: software-properties-qt 0.120
+ ApportVersion: 2.34.0-0ubuntu2
+ Arch: amd64
+ OS: Kubuntu 25.10 "Questing Quokka" - Release amd64 (20251007)
+ Upgrade status: Upgraded to resolute on 2026-05-22 (3 days ago)
+ Uname: Linux 7.0.0-15-generic x86_64

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https://bugs.launchpad.net/bugs/2154196

Title:
  Software properties qt wont launch because of syntax errors in its
  code - Kubuntu 26.04

Status in software-properties package in Ubuntu:
  New

Bug description:
  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.

  Package: software-properties-qt 0.120
  ApportVersion: 2.34.0-0ubuntu2
  Arch: amd64
  OS: Kubuntu 25.10 "Questing Quokka" - Release amd64 (20251007)
  Upgrade status: Upgraded to resolute on 2026-05-22 (3 days ago)
  Uname: Linux 7.0.0-15-generic x86_64

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