PySide Pyqtgraph and Signals

[ahammernes]

I have a gui witch is created with qt creator and pyside. Now to show the plots i want i am using something like: 

class MyGraphWindow(pg.GraphicsLayoutWidget):
    windowClicked = QtCore.Signal(int, int)
    activeGrapchanged = QtCore.Signal(int)
    closeRequest = QtCore.Signal(int)
    newplot = QtCore.Signal(int)

    def __init__(self, winNr):
        super(MyGraphWindow, self).__init__()
        self.graphs = {}
        self.winNr = winNr

And then i have a function wich will add a plot into the window using addItem. 

this is the code for the plotitem: 

class PltItem(pg.PlotItem):
    pltClicked = QtCore.Signal(int)

    def __init__(self, graphnr, parent=None):
        super(PltItem, self).__init__(parent, axisItems={'bottom': TimeAxis()})
        self.graphnr = graphnr
        self.stackedNumber = 0
        self.selecteddata = []
        self.showGrid(True, True)
        self.plotters = []
        colors = ('y', 'g', 'r', 'b', 'w', 'm', 't')

Now the Signal() is not working, i get the error message : 

AttributeError: 'PySide.QtCore.Signal' object has no attribute 'connect'

This error was never present before i installed pyside and pyqtgraph again. I notice that my Signal method approche is the same many of the classes for pyqtgraph. 
So the question is, what gives ??? 

-Aleks

[ahammernes]

Apperantly this is a import issue.... 

If i import pyqtgraph as pg before anything else my gui and and plot windows appear as they should.
how ever the signals and slot do not work as they should. 

If i import pyside before pyqtgraph the signals and slots work as they should, but the plotitems do not show their 

grids and plots at all, yet the legends inserted show as they should....   

PySide version 1.2.4 

pyqtgraph version 0.9.10 

it do not look like i have pyqt installed, when i do pip list i can not see it, and it is not in Lib/site-packages. 

-Aleks

[vas...@gmail.com]

pyqt 4 packages that works for me for pyqtgraph demoscripts are:
python-qt4

python-qt4-gl

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[Luke Campagnola]

On Wed, Dec 16, 2015 at 7:00 AM, ahammernes <ahamm...@gmail.com> wrote:

Apperantly this is a import issue.... 

If i import pyqtgraph as pg before anything else my gui and and plot windows appear as they should.
how ever the signals and slot do not work as they should. 

It sounds like pyqtgraph is using a different version of Qt than the one you are importing. You can use `pg.systemInfo()` to see which version it is using, and generally you can change that by importing PySide before pyqtgraph.

 

If i import pyside before pyqtgraph the signals and slots work as they should, but the plotitems do not show their 

grids and plots at all, yet the legends inserted show as they should....   

PySide version 1.2.4 

pyqtgraph version 0.9.10 

it do not look like i have pyqt installed, when i do pip list i can not see it, and it is not in Lib/site-packages. 

Sounds more strange.. We might need to see a code example (preferrably a simple, runnable script that demonstrates the issue).