[PyQt] Trying to learn ...

[Magnus Wirström]

Hi

I am sorry if this have been asked before :)

I am trying to learn using python and pyqt using ERIC 5.1.2. I have a
problem with signals and slots. I tried this on 2 different computer
with different OS and different version of python. My problem is
this...

I am creating a "test" project using Eric ... using one of the
tuturials on Eric's webpage. I create a project and a form, then i add
a push button. I save the form and i generate the form into code using
Eric I also generate dialog code and adding a slot for my push button.
So far i have not written a single line of code. In my slot i write a
print("Hello"), My only self written code. When i run this, i get a
window with my button but when i click it nothing happens. When have i
done wrong? How can i get my button to execute the slot?

thanks for the help ... sorry if this is a stupid question ;)

Here is the code:


# Form implementation generated from reading ui file
'/home/magnus/eric/test/testui.ui'
#
# Created: Mon Aug  1 22:16:17 2011
#      by: PyQt4 UI code generator 4.8.4
#
# WARNING! All changes made in this file will be lost!

from PyQt4 import QtCore, QtGui

try:
    _fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
    _fromUtf8 = lambda s: s

class Ui_Dialog(object):
    def setupUi(self, Dialog):
        Dialog.setObjectName(_fromUtf8("Dialog"))
        Dialog.resize(400, 300)
        self.pushButton = QtGui.QPushButton(Dialog)
        self.pushButton.setGeometry(QtCore.QRect(140, 130, 83, 25))
        self.pushButton.setObjectName(_fromUtf8("pushButton"))

        self.retranslateUi(Dialog)
        QtCore.QObject.connect(self.pushButton,
QtCore.SIGNAL(_fromUtf8("clicked()")), Dialog.exec)
        QtCore.QMetaObject.connectSlotsByName(Dialog)

    def retranslateUi(self, Dialog):
        Dialog.setWindowTitle(QtGui.QApplication.translate("Dialog",
"Dialog", None, QtGui.QApplication.UnicodeUTF8))
        self.pushButton.setText(QtGui.QApplication.translate("Dialog",
"PushButton", None, QtGui.QApplication.UnicodeUTF8))


if __name__ == "__main__":
    import sys
    app = QtGui.QApplication(sys.argv)
    Dialog = QtGui.QDialog()
    ui = Ui_Dialog()
    ui.setupUi(Dialog)
    Dialog.show()
    sys.exit(app.exec_())


-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------


# -*- coding: utf-8 -*-

"""
Module implementing Dialog.
"""

from PyQt4.QtCore import *
from PyQt4.QtGui import QDialog

from .Ui_testui import Ui_Dialog

class Dialog(QDialog, Ui_Dialog):
    """
    Class documentation goes here.
    """
    def __init__(self, parent = None):
        """
        Constructor

        @param parent reference to the parent widget (QWidget)
        """
        QDialog.__init__(self, parent)
        self.setupUi(self)
        QtCore.QObject.connect(self.pushButton,
QtCore.SIGNAL(_fromUtf8("clicked()")), self.on_pushButton_clicked())

    @pyqtSlot()
    def on_pushButton_clicked(self):
        """
        Slot documentation goes here.
        """
        print("hello")