Python / Qt: Misbehaviour of screen reader compatibility in Ubuntu 22.04

PythonQTMarlem

Hello,

Virtualbox 6.1.36
Ubuntu 22.04
Python 3.10.4
Qt6

I set the AccessibleDescription property on all controls:

self.setAccessibleDescription("Programmfenster für PyQt6 Telefonnummer-Verwaltung")
self.lbl_schriftgroessen.setAccessibleDescription('Beschriftung für Aufklappbare Liste Schriftgröße')
self.cbxschriftgroesse.setAccessibleDescription('Auswahlliste für Schriftgröße')
self.lbl_vorname.setAccessibleDescription('Beschriftung für Eingabefeld Vorname')
self.edt_nachname.setAccessibleDescription('Eingabefeld für Nachname')
self.lbl_nachname.setAccessibleDescription('Beschriftung für Eingabefeld Nachname')
self.edt_telefonnummer.setAccessibleDescription('Eingabefeld fürTelefonnmummer')

...

I start the screen reader Orca.
After that I start my Python Qt application.
Now I operate my Python Qt application with the tab key.
The Orca screen reader remains silent.
When the first widget gets focus the second time,
the Orca screen reader suddenly reads the text from the property
AccessibleDescription.

Question:
What can be the reason?

SGaist

Hi,

Do you have the same issue with PySide2 ?

PythonQTMarlem

I have never programmed graphical user interfaces with PySide2. That's why I can't answer your question.

SGaist

What are you using for your current application ?

PythonQTMarlem

from PyQt6 import QtGui, QtWidgets
from PyQt6.QtGui import QGuiApplication, QIcon
from PyQt6.QtWidgets import QWidget, QApplication, QLabel, QComboBox, QLineEdit, QPushButton, QFormLayout
from PyQt6.QtCore import *

SGaist

Then, can you try with PyQt5 ?

From the looks of your imports, you can simply replace the 6 by 5 once PyQt5 installed.

PythonQTMarlem

@SGaist said in Python / Qt: Misbehaviour of screen reader compatibility in Ubuntu 22.04:

PyQt5
Thank you for your idea! Unfortunately, the same misbehavior is with PyQt5.

here some code in Ubuntu:

self.edt_nachname = QLineEdit(self)
self.edt_nachname.setStyleSheet('font-size: 20px')
self.edt_nachname.setAccessibleName('Bitte Nachname eingeben')
self.edt_nachname.setAccessibleDescription('Eingabefeld für Nachname')
self.edt_nachname.setToolTip('Bitte Nachname eingeben')

I've been trying to see if using setToolTip helps.

PythonQTMarlem

I tried to freshly install the screen reader Orca: https://forum.qt.io/topic/138941/python-qt-misbehaviour-of-screen-reader-compatibility-in-ubuntu-22-04/7 . Unfortunately it didn't solve my problem either.

SGaist

How did you install orca ?

PythonQTMarlem

Orca is preinstalled. Sometimes you have to install it in the terminal. I do it like this: sudo apt install orca

PythonQTMarlem

I tried it with PySide6:

import sys
from PySide6 import QtGui, QtWidgets
from PySide6.QtGui import QGuiApplication
from PySide6.QtWidgets import QWidget, QApplication, QLabel, QComboBox, QLineEdit, QPushButton, QFormLayout
from PySide6.QtCore import *
import csv

The same wrongdoing!

SGaist

Sorry for the very late reply, I tested PySide6 version 6..4.3 (installed using pip in a dedicated environment) on KDE Neon (which is based on Ubuntu 22.04 at this time) and orca 42.0-1ubuntu2 and it worked with the following test script:

import sys

from PySide6.QtCore import Qt

from PySide6.QtWidgets import QApplication
from PySide6.QtWidgets import QHBoxLayout
from PySide6.QtWidgets import QLabel
from PySide6.QtWidgets import QPushButton
from PySide6.QtWidgets import QWidget

if __name__ == "__main__":
    app = QApplication(sys.argv)

    widget = QWidget()
    widget.setAccessibleDescription("This is a test")

    label = QLabel("Test")
    label.setTextInteractionFlags(Qt.TextSelectableByMouse|Qt.TextSelectableByKeyboard)

    button = QPushButton("Test button")
    button.setAccessibleDescription("This is a button")
    button2 = QPushButton("Test button 2")
    button2.setAccessibleDescription("This is a second button")
    button2.clicked.connect(lambda: label.setText("New text"))

    layout = QHBoxLayout(widget)
    layout.addWidget(label)
    layout.addWidget(button)
    layout.addWidget(button2)

    widget.show()

    sys.exit(app.exec())

Note that I started orca on the command line and the script from another one.
Note that something seems of with the QLabel. It seems not listed along the buttons however if you click on it then orca will say its content.