PyQt5 QSpinBox – Adding Prefix

In this article we will see how we can add prefix to the spin box, prefix is basically the text which is inserted before the value of spin box, prefix remain constant for each value of spin box i.e it is not editable. In order to add prefix we will use spin_box.setPrefix method.

Syntax : spin_box.setPrefix(text) Argument : It takes string as argument Return : None

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 spin box
        self.spin = QSpinBox(self)

        # setting geometry to spin box
        self.spin.setGeometry(100, 100, 150, 40)

        # adding prefix in combo box
        self.spin.setPrefix("Value of x : ")


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

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

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

Output :