[Bug]: Dlg example raises an exception

[hoechenberger]

PsychoPy Version

v2024.1.1 stand-alone

What OS are your PsychoPy running on?

macOS Silicon

Bug Description

I tried to run the Dlg example

from psychopy import gui

myDlg = gui.Dlg(title="JWP's experiment")
myDlg.addText('Subject info')
myDlg.addField('Name:')
myDlg.addField('Age:', 21)
myDlg.addText('Experiment Info')
myDlg.addField('Grating Ori:',45)
myDlg.addField('Group:', choices=["Test", "Control"])
ok_data = myDlg.show()  # show dialog and wait for OK or Cancel
if myDlg.OK:  # or if ok_data is not None
    print(ok_data)
else:
    print('user cancelled')

Raises an exception:

Traceback (most recent call last):
  File "/Users/richardhochenberger/Library/CloudStorage/[redacted]", line 6, in <module>
    myDlg.addField('Age:', 21)
  File "/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/gui/qtgui.py", line 252, in addField
    inputLabel = self.addText(label, color, isFieldLabel=True)
  File "/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/gui/qtgui.py", line 219, in addText
    textLabel = QtWidgets.QLabel(text, parent=self)
TypeError: arguments did not match any overloaded call:
  QLabel(parent: typing.Optional[QWidget] = None, flags: Union[Qt.WindowFlags, Qt.WindowType] = Qt.WindowFlags()): argument 1 has unexpected type 'int'
  QLabel(text: str, parent: typing.Optional[QWidget] = None, flags: Union[Qt.WindowFlags, Qt.WindowType] = Qt.WindowFlags()): argument 1 has unexpected type 'int'
################ Experiment ended with exit code 1 [pid:95417] #################

Expected Behaviour

A dialog should display.

Steps to Reproduce

1. Paste example code into Coder.
2. Save file.
3. Run.

Additional context

Documentation bug, I'd say
I'm using DlgFromDict instead now, which seems to be working fine.

[Cortexan]

I noticed this same issue; it was resolved by explicitly setting the key and label arguments when adding fields e.g.:

# New version (PsychoPy >= 2023.2)
subjData = gui.Dlg(title="Auszogne - Settings",
                   screen=-1,
                   alwaysOnTop=True)

# [0]
subjData.addField(key = 0,
                  label = 'Subject:',
                  initial = 0)
# [1]
subjData.addField(key = 1,
                  label = 'Screen:',
                  initial = 'Lab',
                  choices = ['Lab', 'Laptop', 'Home', 'Home2'])
# [2]
subjData.addField(key = 2,
                  label = 'Fullscreen:',
                    initial = True)
# [3]
subjData.addField(key = 3,
                  label = 'Cue(s):',
                  initial='Audio',
                  choices=['Visual', 'Audio', 'Both'])

# [4]
subjData.addField(key = 4,
                  label = 'Colour Set:',
                  initial='New',
                  choices=['New', 'Old'])

subjData.show()
if not subjData.OK:
    core.quit()

[michalrzak]

I think this would get fixed by #6335. The problem is the diverging implementation of the dialogue boxes in QT and WX.

The example from the wiki would work fine on the QT backend, whereas it fails on the WX backend.