from PyQt5.QtWidgets import QMainWindow, QLineEdit, QApplication

from pyqt_left_right_text_completer import LeftRightTextCompleter


class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.__initUi()

    def __initUi(self):
        searchBar = QLineEdit()
        completer = LeftRightTextCompleter()
        for i in range(1, 128):
            completer.addText(chr(i), f'{i}') # chr(i) is left text, f'{i} is right text.
        searchBar.setCompleter(completer)
        self.setCentralWidget(searchBar)


if __name__ == "__main__":
    import sys

    app = QApplication(sys.argv)
    mainWindow = MainWindow()
    mainWindow.show()
    sys.exit(app.exec_())