PyQt5 – Setting font to line editbox item of non-editable ComboBox

In this article we will see how to change the size and font of the item present in the editable box. If we use setFont method which takes QFont object as argument, using it with the check box object will change the font of all the items present in the list.

Note : When we get the line edit object from the combo box it will make the combo box there fore there is a need to make the line edit non editable

In order to change the font and size of only the item which is in the editable box, do the following –

1. Create a combo box
2. Get the line edit(editable box) object from combo box
3. Change the font of the line edit using setFont method
4. Make the line edit non-editable(read-only)

Below is the implementation –

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# 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, 150, 30)
  
        # geek list
        geek_list = ["Sayian", "Super Sayian"]
  
        # making it editable
        self.combo_box.setEditable(True)
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # font
        font = QFont('Times', 10)
  
        # getting the line edit of combo box
        line_edit = self.combo_box.lineEdit()
  
        # setting line font to the line edit
        line_edit.setFont(font)
  
        # making line edit non editable
        line_edit.setReadOnly(True)
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

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