pyqt5 button

PyQt5 offers the ability to incorporate buttons using its QPushButton class. This class is housed within the PyQt5.QtWidgets module. You can create a button by invoking the QPushButton constructor and passing the desired display text as an argument.

Related course:

• Create GUI Apps with PyQt5

Introduction
For integrating buttons into a PyQt5 application, it’s essential to modify the import line as follows:

from PyQt5.QtWidgets import QApplication, QWidget, QPushButton
from PyQt5.QtCore import pyqtSlot

Within the initUI() function, insert the subsequent code:

button = QPushButton('PyQt5 button', self)
button.setToolTip('This is an example button')
button.move(100,70)

The QPushButton initializes the widget with the button text specified in the first parameter. The setToolTip method displays a tooltip when a user hovers over the button. The button’s position is then adjusted to coordinates x=100, y=70.
To register a button click, we need to implement the following method:

@pyqtSlot()
def on_click(self):
    print('PyQt5 button click')

Then, connect the aforementioned method to the button click event like so:

button.clicked.connect(self.on_click)

The finalized PyQt5 button code is:

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import pyqtSlot

class App(QWidget):
    def __init__(self):
        super().__init__()
        self.title = 'PyQt5 button - pythonspot.com'
        self.left = 10
        self.top = 10
        self.width = 320
        self.height = 200
        self.initUI()
  
    def initUI(self):
        self.setWindowTitle(self.title)
        self.setGeometry(self.left, self.top, self.width, self.height)
        button = QPushButton('PyQt5 button', self)
        button.setToolTip('This is an example button')
        button.move(100,70)
        button.clicked.connect(self.on_click)
        self.show()

    @pyqtSlot()
    def on_click(self):
        print('PyQt5 button click')

if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = App()
    sys.exit(app.exec_())

A visual representation of the PyQt5 button from the aforementioned code is displayed above.

Download PyQT5 Examples with this link.

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