[Solved] PySide: passing data from QML to Python

tiredtyrant

I want to send data from QML to Python. The QML has a button, that when clicked will call a slot with a hardcoded string as parameter. This slot should print the string sent from the QML.

test.py:

@#!/usr/bin/env python

import sys
from PySide import QtCore, QtGui, QtDeclarative

class Test( QtCore.QObject ):
def init( self ):
QtCore.QObject.init(self)

@QtCore.Slot()
def printText(self,text):
    print text

class MainWindow( QtDeclarative.QDeclarativeView ):
def init( self, parent=None ):
super( MainWindow, self ).init( parent )
self.setWindowTitle( "Test" )
self.setSource( QtCore.QUrl.fromLocalFile( './test.qml' ) )
self.setResizeMode( QtDeclarative.QDeclarativeView.SizeRootObjectToView )

app = QtGui.QApplication( sys.argv )
window = MainWindow()
context = window.rootContext()
context.setContextProperty("testModel",Test())
window.show()
sys.exit( app.exec_() )@

test.qml:

@import QtQuick 1.0

Rectangle {
width: 200
height: 200
color: "white"

Rectangle {
    anchors.centerIn: parent
    width: 100
    height: 50
    color: "black"
    Text {
        anchors.centerIn: parent
        text: "click"
        color: "white"
    }
    MouseArea {
        anchors.fill: parent
        onClicked: {
            testModel.printText("test")
        }
    }
}

}@

When I click the button, the following error occurs:

@TypeError: printText() takes exactly 2 arguments (1 given)@

What am I doing wrong?

tiredtyrant

I figured it out. I forgot to specify the slot's argument type. Fixed it by changing the slot's declaration to this:

@@QtCore.Slot('QString')
def printText(self,text):
print text@