pyside2

I'd like to implement a PyQtGraph PlotWidget into a PySide2 application. With PyQt5 everything works. With PySide2 I get the Error shown at the bottom. I already found out, that there's some work in progress, but also it seems that a few people managed to get this working. However, I was not able yet. I am using Pyqtgraph 0.10 and not the developer branch. Shall I change? What do I need to do? from PySide2.QtWidgets import QApplication, QMainWindow, QGraphicsView, QVBoxLayout, QWidget import sys import pyqtgraph as pg class WdgPlot(QWidget): def __init__(self, parent=None): super(WdgPlot, self

I've noticed that QML can receive a signal emitted from Python by using the Connections object. Unfortunately, I can't figure out how to get that object to receive the arguments of that signal. I've created a minimal test case that demonstrates what I want to do: min.py from PySide import QtCore, QtGui, QtDeclarative import sys # init Qt app = QtGui.QApplication(sys.argv) # set up the signal class Signaller(QtCore.QObject): emitted = QtCore.Signal(str) signaller = Signaller() # Load the QML qt_view = QtDeclarative.QDeclarativeView() context = qt_view.rootContext() context.setContextProperty(

I'm trying to load a spreadsheet and pass a list of the worksheets back to my QML interface. But I'm unable to find a way to provide a list(and later a dictionary) back to the QML script. Here's my QML: FileDialog { id: openDialog title: "Open spreadsheet" nameFilters: [ "Excel files (*.xls *.xlsx)", "All files (*)" ] selectedNameFilter: "Excel files (*.xls *.xlsx)" onAccepted: { file.load(fileUrl) console.log(file.name) console.log(file.sheetnames) } onRejected: { console.log("Rejected") } } Here's the my python class: class File(QtCore.QObject): def __init__(self, *args, **kwargs): super

When I run the basic script: import sys from PySide2.QtWidgets import QApplication, QLabel app = QApplication(sys.argv) label = QLabel("Hello World") label.show() app.exec_() forthe first time it all works fine. However, if I run it a second time I get: File "../script.py", line 17, in <module> app = QApplication(sys.argv) RuntimeError: Please destroy the QApplication singleton before creating a new QApplication instance. I am running the scripts in an Ubuntu machine. I get the same error in python2 and python3. Thanks ! Probably your IDE has already created a QApplication, so the solution is