PySide6.7 is majorly broken - TypeErrors everywhere

Aspecky

I was developing my app using pyside6 on windows and didnt pay attention to the version, when 6.7 came out yesterday (Apr 9th) my app broke (i think my pip packages auto update) spitting out TypeError everywhere, for example not even this would run:

from PySide6.QtCore import *
from PySide6.QtWidgets import *
import sys

app = QApplication([])

window = QMainWindow()

central_widget = QFrame()

window.setCentralWidget(central_widget)

sys.exit(app.exec())

With the error being:

TypeError: 'PySide6.QtWidgets.QMainWindow.setCentralWidget' called with wrong argument types:
  PySide6.QtWidgets.QMainWindow.setCentralWidget(QFrame)
Supported signatures:
  PySide6.QtWidgets.QMainWindow.setCentralWidget(PySide6.QtWidgets.QWidget)

Changing QFrame to QWidget doesnt cause an error.

I spun up a quick windows 10 sandbox instance with pyside6.7 and got the same error, the previous release works as expected.

JonB

@Aspecky
Oh dear! Assuming your finding is true/repeatable you will have to report this as a bug. You might verify whether it has anything to do with QFrame or whether any QWidget-derived class does same.

Aspecky

@JonB This issue is very repeatable and i think it happens with every type, basically if you dont pass the exact type a function asks for then you'll get that error, for example this too will error:

from PySide6.QtCore import *
from PySide6.QtWidgets import *
import sys

app = QApplication([])

window = QMainWindow()

central_widget = QWidget()
layout = QGridLayout()
central_widget.setLayout(layout) # here

window.setCentralWidget(central_widget)

sys.exit(app.exec())

Error:

TypeError: 'PySide6.QtWidgets.QWidget.setLayout' called with wrong argument types:       
  PySide6.QtWidgets.QWidget.setLayout(QGridLayout)
Supported signatures:
  PySide6.QtWidgets.QWidget.setLayout(PySide6.QtWidgets.QLayout)

I am new to qt forums and would rather someone else make the bug report if possible 😅 . Could you do it? If not please link me to the bug report and i'll give it a shot.

SGaist

Hi and welcome to devnet,

Don't be afraid ! The bug report system is here :-)

Can you try again without using star imports ?

Aspecky

@SGaist Hello and thanks for the welcome!

So it looks it's not the wildcards import, it's the act of importing PySide6.QtCore.

As in this would TypeError at setCentralWidget:

from PySide6.QtCore import * 
from PySide6.QtWidgets import *
import sys

app = QApplication([])

window = QMainWindow()

central_widget = QFrame()

window.setCentralWidget(central_widget)

sys.exit(app.exec())

and this wont:

from PySide6.QtWidgets import *
import sys

app = QApplication([])

window = QMainWindow()

central_widget = QFrame()

window.setCentralWidget(central_widget)

sys.exit(app.exec())

I reported the issue here

SGaist

@Aspecky thanks !

T0Mtom

I have the same issue in 6.7 , 6.6.3.1 works well.

JonB

@T0Mtom
Yes. If you followed @Aspecky's link to the bug report they created you will see it links on to https://bugreports.qt.io/browse/PYSIDE-2674

Passes on 6.6.3.1 but fails on 6.7.0.

So they are aware! The problem/solution/workaround is that you either must not use from ... import * or you have to be careful about the order of such statements and how that relates to other non-* imports. Doubtless until they fix.