[qt5] grid layout - calculator skeleton

grid_layout.py

__author__ = 'tom'

import sys
from PyQt5.QtWidgets import (QWidget, QGridLayout,
                             QPushButton, QApplication)


class Example(QWidget):
    def __init__(self):
        super().__init__()
        self.init_ui()

    def init_ui(self):
        grid = QGridLayout()
        self.setLayout(grid)

        names = ['Cls', 'Bck', '', 'Close',
                 '7', '8', '9', '/',
                 '4', '5', '6', '*',
                 '1', '2', '3', '-',
                 '0', '.', '=', '+']

        positions = [(i,j) for i in range(5) for j in range(4)]

        for position, name in zip(positions, names):
            if name == '':
                continue
            btn = QPushButton(name)
            grid.addWidget(btn, *position)

        self.move(300,150)
        self.setWindowTitle('Calculator')
        self.show()


if __name__ == "__main__":
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())