PyQt5 QDoubleSpinBox – Stepping Down

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In this article we will see how we can step down the value of the QDoubleSpinBox programmatically. Double spin box can take decimal value as input, we can set value with the help of setValue method, stepping down will only decrement the value by 1 for default or by decimal if adaptive decimal type is selected.

In order to do this we will use stepDown method with the double spin box object.

Syntax : dd_spin.stepDown()

Argument : It takes no argument

Return : It returns None

Below is the implementation

# 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, 500, 400) 
  
        # calling method 
        self.UiComponents() 
  
        # showing all the widgets 
        self.show() 
  
    # method for components 
    def UiComponents(self): 
  
        # creating double spin box 
        d_spin = QDoubleSpinBox(self) 
  
        # setting geometry to the double spin box 
        d_spin.setGeometry(100, 100, 150, 40) 
  
  
        # step type 
        step_type = QAbstractSpinBox.AdaptiveDecimalStepType 
  
        # adaptive step type 
        d_spin.setStepType(step_type) 
  
        # creating a label 
        label = QLabel("zambiatek", self) 
  
        # setting geometry to the label 
        label.setGeometry(100, 200, 300, 80) 
  
        # making label multi line 
        label.setWordWrap(True) 
  
        # push button 
        push = QPushButton("Press", self) 
  
        # setting geometry to the push button 
        push.setGeometry(100, 150, 100, 35) 
  
        # adding action to the push button 
        # stepping down the value 
        push.clicked.connect(lambda: d_spin.stepDown()) 
  
  
  
  
# create pyqt5 app 
App = QApplication(sys.argv) 
  
# create the instance of our Window 
window = Window() 
  
# start the app 
sys.exit(App.exec()) 