PySide6, Python 3.9, TypeError when creating GraphicsObject's

[David Forsyth]

Whenever I'm creating any child class of pyqtgraph's GraphicsObject, I get:

TypeError: native Qt signal is not callable

at line 24 in GraphicsObject.py. I can put that in a try,except block and pass the error and things seem to work:

def itemChange(self, change, value):
    ret = super().itemChange(change, value)
    if change in [self.GraphicsItemChange.ItemParentHasChanged,           

        self.GraphicsItemChange.ItemSceneHasChanged]:
        # DSF changes I added the Try-Except block
        try:
            self.parentChanged()
        except TypeError:
            print("error in pyqtgraph.GraphicsObject.py in DSF added try except block")
        pass

Any thoughts on what I am doing wrong?

Thanks, Dave.

[Patrick]

Hi,

Are you using PySide6, specifically PySide6.2.2 with the stable pip installed version of pyqtgraph? There's something funny going on with the new version of PySide6. Try either using the git version of pyqtgraph, or pip install pyside6==6.2.1  and see how you go.

Patrick

[David Forsyth]

I was on PySide6.2.2.1, going back to 6.2.1 solved this.

Dave.

[David Forsyth]

There were also scaling issues with the plotting of ROI handles (they got HUGE). Resolved by going back to pyside6.2.1

[Ognyan Moore]

This is the first time I'm hearing of this issue.  If you have the time, could you try to replicate this with pyqtgraph installed from the master branch (and pyside6 6.2.2).

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[David Forsyth]

Took me a while to figure out the massive trapezoids were the handles! No code change, only pyside6.2.1 to pyside6.2.2.1

Dave.

[Ognyan Moore]

Hi Dave,

Can you install pyqtgraph from the current master branch and see if the issue is persistent?

pip install git+https://github.com/pyqtgraph/pyqtgraph.git@master

 

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[David Forsyth]

Good news, installing from current master resolved both the issue of the graphicsObject and the ROI handle plotting.

Thanks, Dave.

[Ognyan Moore]

Thanks so much for testing! I would have done a release earlier but the holidays have a tendency to get in the way of this sort of thing.

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