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Loading a simple Qt Designer form in to Pyside

Answer 1

+2 A:

Firstly you are using PySide(Nokia) not PyQt4(Riverbank Computing), although their API's are nearly identical they are not the same project. The PySide examples are available here: git clone git://gitorious.org/pyside/pyside-examples.git

I think the problem may have to do with your call of super(MyMainWindow, self).init(parent) try QtGui.QMainWindow.init(self, parent) instead.

I know it seems like it is the same thing, but I've ran into similar problems with super using PyQt4, and from what I can tell Nokia's PySide has the same troubles. It has something to do with weather the Python owns the parent or it's owned by an underlying C++ object. At least give it a try, it'll take less than 5 seconds!

Below is the example I'm basing this off of, it's from the git repo for PySide.

#!/usr/bin/env python

#############################################################################
##
## Copyright (C) 2004-2005 Trolltech AS. All rights reserved.
##
## This file is part of the example classes of the Qt Toolkit.
##
## This file may be used under the terms of the GNU General Public
## License version 2.0 as published by the Free Software Foundation
## and appearing in the file LICENSE.GPL included in the packaging of
## this file.  Please review the following information to ensure GNU
## General Public Licensing requirements will be met:
## http://www.trolltech.com/products/qt/opensource.html
##
## If you are unsure which license is appropriate for your use, please
## review the following information:
## http://www.trolltech.com/products/qt/licensing.html or contact the
## sales department at [email protected].
##
## This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
## WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
##
#############################################################################

import sys
from PySide import QtCore, QtGui

from ui_calculatorform import Ui_CalculatorForm


class CalculatorForm(QtGui.QWidget):
    def __init__(self, parent=None):
        QtGui.QWidget.__init__(self, parent)

        self.ui = Ui_CalculatorForm()

        self.ui.setupUi(self)

    @QtCore.pyqtSignature("int")
    def on_inputSpinBox1_valueChanged(self, value):
        self.ui.outputWidget.setText(QtCore.QString.number(value + self.ui.inputSpinBox2.value()))

    @QtCore.pyqtSignature("int")
    def on_inputSpinBox2_valueChanged(self, value):
        self.ui.outputWidget.setText(QtCore.QString.number(value + self.ui.inputSpinBox1.value()))


if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    calculator = CalculatorForm()
    calculator.show()
    sys.exit(app.exec_())

kramthegram 2009-11-05 15:41:43

Answer 2

+1 A:

Turns out there is a bug in PySide with the QSpacerItem class. Commenting out the QSpacerItem instances in the code above makes it work just fine. There's a bug report on the PySide bugzilla.

Kamil Kisiel 2009-11-15 15:31:45

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Loading a simple Qt Designer form in to Pyside

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