Building a Calculator with PyQt5
PyQt5 is a set of Python bindings for the Qt application framework and runs on all platforms supported by Qt, including Windows, OS X, Linux, iOS, and Android. In this article, we will walk through the process of building a simple calculator using PyQt5.
First, you will need to install PyQt5 if you haven’t already. You can do this using pip by running the following command in your terminal:
pip install PyQt5
Once PyQt5 is installed, you can start by creating a new Python file for your calculator application. Here is a basic example of how to create a simple calculator window using the PyQt5 library:
import sys
from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QPushButton, QLineEdit
class Calculator(QWidget):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.setWindowTitle('Calculator')
self.setGeometry(100, 100, 300, 400)
vbox = QVBoxLayout()
self.display = QLineEdit()
vbox.addWidget(self.display)
gridLayout = QGridLayout()
button = QPushButton('1')
gridLayout.addWidget(button, 0, 0)
button.clicked.connect(self.on_button_clicked)
...
vbox.addLayout(gridLayout)
self.setLayout(vbox)
def on_button_clicked(self):
sender = self.sender()
self.display.setText(self.display.text() + sender.text())
if __name__ == '__main__':
app = QApplication(sys.argv)
calc = Calculator()
calc.show()
sys.exit(app.exec_())
Once you have the basic structure of the calculator in place, you can add functionality for arithmetic operations and other features as per your requirements.
PyQt5 provides a comprehensive set of tools for creating graphical user interfaces, and it is a great option for building a calculator application with a modern and user-friendly interface.
With this article, you should be well on your way to building your own calculator using the PyQt5 library. Have fun experimenting and customizing your calculator to suit your needs!
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