Arabic alphabet learning aid and PyQt5 primer

arabic.py

#!/usr/bin/python3
# -*- coding: utf-8 -*-

"""
https://opensource.com/article/18/11/study-aid-python

2018.11.06 Greg Pittman
An exercise for learning Arabic letters.
An Arabic letter is shown, the name of which can be guessed.
Hover the mouse cursor over the letter to see its name in a Tool Tip.
Click Next to load another letter.

"""

import sys
from random import randint
try:
    from PyQt5.QtCore import *
    from PyQt5.QtGui import QFont
    from PyQt5.QtWidgets import QWidget, QLabel, QApplication, QToolTip, QPushButton
except ModuleNotFoundError:
    print("PyQt5 imports failed. Try:\n  pip3 install --user pyqt5")
    sys.exit(-5)


class Example(QWidget):
    
    def __init__(self, parent = None):
        super(Example, self).__init__(parent)
        self.initUI()

    def initUI(self):
        QToolTip.setFont(QFont('DejaVuSans', 30))
        i = randint(0, 37)

        self.lbl2 = QLabel(L[12], self)
        self.lbl2.setToolTip(lname[12]+'   \n   ')
        
        self.lbl2.setFont(QFont('FreeSerif', 40))
        self.lbl2.setTextFormat(1)
        self.lbl2.setAlignment(Qt.AlignVCenter)
        self.lbl2.setAlignment(Qt.AlignHCenter)
        
        butn = QPushButton("Next", self)
        butn.move(70, 70)
        butn.clicked.connect(self.buttonClicked)

        self.setGeometry(300, 300, 160, 110)
        self.setWindowTitle('Arabic Letters')    
        self.show()

    def buttonClicked(self):
        i = randint(0,37)
        self.lbl2.setFont(QFont('FreeSerif', 40))
        self.lbl2.setTextFormat(1)
        self.lbl2.setText(L[i])
        self.lbl2.setAlignment(Qt.AlignVCenter)
        self.lbl2.setAlignment(Qt.AlignHCenter)
        self.lbl2.setToolTip(lname[i]+'    \n   ')
    

if __name__ == '__main__':

    lname = ['alif', 'beh', 'teh', 'theh', 'jim',  'ha', 'kha', 'dal', 'dhal',   'ra',
             'zin',  'sin', 'shin', 'Sad', 'Dad',  'Ta', 'DHa', 'ain', 'ghain', 'feh',
             'qaf',  'kaf', 'lam',  'mim', 'nün', 'heh', 'waw', 'yeh',
             'Sifr (0)',    'wáaHid (1)', 'ithnáyn (2)',  'thaláatha (3)', 'árba:ah (4)',
             'khámsah (5)', 'sittah (6)',  'sáb:ah (7)', 'thamáanyah (8)',  'tís:ah (9)']
    L = [u"\u0627", u"\u0628", u"\u062A", u"\u062B", u"\u062C",  u"\u062D", u"\u062E", u"\u062F", u"\u0630", u"\u0631",
         u"\u0632", u"\u0633", u"\u0634", u"\u0635", u"\u0636",  u"\u0637", u"\u0638", u"\u0639", u"\u063A", u"\u0641",
         u"\u0642", u"\u0643", u"\u0644", u"\u0645", u"\u0646",  u"\u0647", u"\u0648", u"\u064A",
         u"\u0660", u"\u0661", u"\u0662", u"\u0663", u"\u0664",
         u"\u0665", u"\u0666", u"\u0667", u"\u0668", u"\u0669"]

    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())