[Bug 2122357] Re: Dialog not opening after selecting "Other" for Ubuntu Software source

[Gabriel Ilie]

Running the app from the terminal yields the following errors when
performing the step 3:

sudo software-properties-qt
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/softwareproperties/qt/SoftwarePropertiesQt.py", line 472, in on_combobox_server_changed
    dialogue = DialogMirror(self.userinterface, self.datadir, self.distro, self.custom_mirrors)
  File "/usr/lib/python3/dist-packages/softwareproperties/qt/DialogMirror.py", line 98, in __init__
    self.treeview.sortItems(0, Qt.AscendingOrder)
                               ^^^^^^^^^^^^^^^^^
AttributeError: type object 'Qt' has no attribute 'AscendingOrder'

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https://bugs.launchpad.net/bugs/2122357

Title:
  Dialog not opening after selecting "Other" for Ubuntu Software source

Status in software-properties package in Ubuntu:
  Confirmed

Bug description:
  Steps to reproduce.

  1) Go to "Software Sources"
  2) Go to "Ubuntu Software" tab
  3) On the "Download from:" field select the option "Other..." in the dropdown.

  Expected result: A dialog opens which allows selecting a mirror.
  Actual result: "Software Sources" tab freezes for ~1 second and the dialog is not opened.

  ProblemType: Bug
  DistroRelease: Ubuntu 25.04
  Package: software-properties-qt 0.111
  Uname: Linux 6.16.3-061603-generic x86_64
  ApportVersion: 2.32.0-0ubuntu5.3
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: KDE
  Date: Mon Sep  8 20:53:22 2025
  InstallationDate: Installed on 2025-08-07 (32 days ago)
  InstallationMedia: Kubuntu 25.04 "Plucky Puffin" - Release amd64 (20250417)
  PackageArchitecture: all
  SourcePackage: software-properties
  UpgradeStatus: No upgrade log present (probably fresh install)

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