python
pip install PyQt5
python
from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QPushButton
from PyQt5.QtCore import Qt
app = QApplication([])
window = QWidget()
window.setWindowTitle('PyQt Example')
window.setGeometry(100, 100, 300, 200)
label = QLabel('Hello PyQt!', window)
label.setAlignment(Qt.AlignCenter)
button = QPushButton('Change Text', window)
button.setGeometry(100, 100, 100, 30)
def change_text():
label.setText('Text Changed!')
button.clicked.connect(change_text)
window.show()
app.exec_()
