SIGNALs are not working in PySide
Question: I wrote a simple application in Python and PySide. When I run it, SIGNALs are
not working. The application starts without errors.

    
    
    from PySide.QtCore import *
    from PySide.QtGui import *
    import sys
    
    class Form(QDialog):
    
        def __init__(self, parent=None):
            super(Form, self).__init__(parent)
    
            dial = QDial()
            dial.setNotchesVisible(True)
    
            spinbox = QSpinBox()
    
            layout = QHBoxLayout()
            layout.addWidget(dial)
            layout.addWidget(spinbox)
            self.setLayout(layout)
    
            self.connect(dial, SIGNAL("valueChaged(int)"), spinbox.setValue)
            self.connect(spinbox, SIGNAL("valueChaged(int)"), dial.setValue)
    
            self.setWindowTitle("Signals and Slots")
        # END def __init__
    # END class Form
    
    def main():
        app = QApplication(sys.argv)
        form = Form()
        form.show()
        app.exec_()
    # END def main
    
    if __name__ == '__main__':
        main()
    # END if
    

I am using:

Pyside 1.2.2; Python 2.7.6; OS Centos; Windows 7

I am running the application with:

Sublime Text 3 and Eclipse Luna;

How can I make SIGNALs working?


Answer: Your signal name is incorrect;

**Incorrect :**

    
    
    valueChaged (int)
    

**[Correct](http://pyqt.sourceforge.net/Docs/PyQt4/qabstractslider.html#valueChanged)
:**

    
    
    valueChanged (int)
    

Test it, work fine;

    
    
    import sys
    from PyQt4.QtGui import *
    from PyQt4.QtCore import *
    
    class QFormDialog (QDialog):
        def __init__(self, parent = None):
            super(QFormDialog, self).__init__(parent)
            self.myQial = QDial()
            self.myQSpinbox = QSpinBox()
            self.myQHBoxLayout = QHBoxLayout()
            self.myQial.setNotchesVisible(True)
            self.myQHBoxLayout.addWidget(self.myQial)
            self.myQHBoxLayout.addWidget(self.myQSpinbox)
            self.setLayout(self.myQHBoxLayout)
            self.connect(self.myQial,     SIGNAL('valueChanged(int)'), self.myQSpinbox.setValue)
            self.connect(self.myQSpinbox, SIGNAL('valueChanged(int)'), self.myQial.setValue)
            self.setWindowTitle('Signals and Slots')
    
    if __name__ == '__main__':
        myQApplication = QApplication(sys.argv)
        myQFormDialog = QFormDialog()
        myQFormDialog.show()
        myQApplication.exec_()
    

Note : PyQt4 & PySide is same way to implemented.

