Python pyqt interface code not running

Question

I have written a python 3.4 code which uses pyqt4 GUI modules but when i run the module it does not show anything kindly help

import sys
from PyQt4 import QtGui,QtCore

class window(QtGui.QMainWindow):

    def _init_(self):
        super(Window, self)._init_()
        self.setGeometry(50,50,500,300)
        self.setWindowTitle("Tallman Server")
        self.setWindowIcon(QtGui.QIcon("tracking.png"))
        self.home()
    def home():
            btn=QtGui.QPushButton("Quit",self)
            btn.clicked.connect(QtCore.QCoreApplication.instance().quit)
            self.show()


def run():    
         app=QtGui.QApplication(sys.argv)
         GUI=window()
         sys.exit(app.exec_())

run()

BernardoGO · Accepted Answer · 2017-01-11 06:12:03Z

1

Firstly, the function's name is __init__ instead of _init_. Secondly, you have to add the self parameter to home().

Those changes will solve your problem.

Modified code:

import sys
from PyQt4 import QtGui,QtCore

class window(QtGui.QMainWindow):

    def __init__(self):
        super(window, self).__init__()
        self.setGeometry(50,50,500,300)
        self.setWindowTitle("Tallman Server")
        self.setWindowIcon(QtGui.QIcon("tracking.png"))
        self.home()
    def home(self):
        btn=QtGui.QPushButton("Quit",self)
        btn.clicked.connect(QtCore.QCoreApplication.instance().quit)
        self.show()


def run():
    app=QtGui.QApplication(sys.argv)
    GUI=window()
    sys.exit(app.exec_())

run()

answered Jan 11, 2017 at 6:12

BernardoGO

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2 Comments

tallman Over a year ago

thanks for the great help am new in pyqt neve knew small errors could make the program not work.

hansaplast Over a year ago

@tallman: __init__ and self are part of python's object oriented features and have nothing to do with pyqt. I suggest you make yourself familiar with classes, e.g. this documentation explains it. Otherwise you'll run into similar problems in the future

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