pyqt5: Mainwindow not showing Combobox

January 18, 2022

I wan to creat window app for manage student OF CLASS
QComboBox not show, helping

My code is here

import PyQt5 import QtCore, QtGui
import PyQt5.QtGui import *
import PyQt5.QtWidgets import *
import PyQt5.QtCore import *
import sys

class Window(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("stsudent class")
        self.setGeometry(-100, +100, 600, 400)
        self.UiComponents()
        self.setVisible(True)

    def self.UiComponents():
        self.combo_box = QComboBox(self)
        self.combo_box.setGeometry(200, 150, 150, 30)
        list_student = ["Richy", "bruce", "Ahmed", "Zoubobo"]
        self.combo_box.addItems(list_student)
        edit = QLineEdit(self)
        self.combo_box.setLineEdit(edit)
        
App = QApplication(sys.argv)
window = Window()
app.exit(App.exec()

guys can you see this

>Solution :

Try this

So i changed QComboBox() to QComboBox(Self) –>to display it into the MainWindow show() on that will make it to

i changed self.setVisible(True) to –> self.show()
And it’s not really app.exit() it’s sys.exit(App.exec()) or sys.exit(App.exec())

from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
import sys

class Window(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("class student")
        self.setGeometry(100, 100, 600, 400)
        self.UiComponents()
        self.show()

    def UiComponents(self):
        self.combo_box = QComboBox(self)
        self.combo_box.setGeometry(200, 150, 150, 30)
        list_student = ["Richy", "bruce", "Ahmed", "Zoubobo"]
        self.combo_box.addItems(list_student)
        edit = QLineEdit(self)
        self.combo_box.setLineEdit(edit)
        
App = QApplication(sys.argv)
window = Window()
sys.exit(App.exec())