PyQt5 ComboBox – User entered items store alphabetical order

In this article we will see how we user entered item get added at alphabetical position in the combo box i.e when user insert item in the editable combo box it get inserted at the position at which is in alphabetical order in the drop down list, by default when user insert any item it get inserted at the bottom. When item get inserted it will not replace or overwrite the item which was before at position although it will shift the position of other items to get added at the desired position. It doesn’t make items in alphabetical order which was added programmatically.

In order to make combo box such that item inserted by user get added at alphabetical position in the drop down list we have to do the following – 1. Create a combo box 2. Make the combo box editable using setEditable method 3. Set insertion policy of combo box to insert alphabetically 4. Create label 5. Retrieve the insertion policy and show it with the help of label

Below is the implementation 

Python3

# importing libraries
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys


class Window(QMainWindow):

    def __init__(self):
        super().__init__()

        # setting title
        self.setWindowTitle("Python ")

        # setting geometry
        self.setGeometry(100, 100, 600, 400)

        # calling method
        self.UiComponents()

        # showing all the widgets
        self.show()

    # method for widgets
    def UiComponents(self):

        # creating a combo box widget
        self.combo_box = QComboBox(self)

        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 120, 30)

        # geek list
        geek_list = ["Geek", "Geeky Geek"]

        # adding list of items to combo box
        self.combo_box.addItems(geek_list)

        # creating editable combo box
        self.combo_box.setEditable(True)

        # setting insertion policy
        # new item will get added alphabetically
        self.combo_box.setInsertPolicy(QComboBox.InsertAlphabetically)

        # getting current insertion policy
        policy = self.combo_box.insertPolicy()

        # creating label to  print the policy
        label = QLabel("Insertion policy = " + str(policy), self)

        # setting geometry of the label
        label.setGeometry(200, 100, 200, 30)


# create pyqt5 app
App = QApplication(sys.argv)

# create the instance of our Window
window = Window()

# start the app
sys.exit(App.exec())

Output : Before insertion After insertion