import sys from PyQt5.QtWidgets import * from PyQt5.QtGui import * app = QApplication(sys.argv) label = QLabel("Hello World") label.setStyleSheet("background-color: " + QColor.green.name()) label.show() sys.exit(app.exec_())
import sys from PyQt5.QtWidgets import * from PyQt5.QtGui import * app = QApplication(sys.argv) widget = QWidget() widget.resize(250, 150) painter = QPainter() painter.begin(widget) painter.setBrush(QBrush(QColor.green)) painter.drawRect(10, 10, 100, 100) painter.end() widget.show() sys.exit(app.exec_())This code creates a QLabel widget and sets its background color to green using the setStyleSheet() method. It then shows the widget on the screen. Both examples use the PyQt5.QtGui package library.