[Qt5 basics] random number display

Display random numbers through a display similar to a calculator

1. Exercise layout
2. Practice defining buttons
3. Practice button signals
4. Practice using the display

Constructors

Window appearance

Slot function

from PyQt5.Qt import *
import sys
app = QApplication([])
class Window(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('QLCDNumber usage ')
        self.resize(300,150)
        self.setup_ui()
    def setup_ui(self):
        vbox = QVBoxLayout()
        self.lcd = QLCDNumber()
        self.lcd.setStyleSheet('background-color:yellow')
        vbox.addWidget(self.lcd)
        self.btn = QPushButton('rando