Question

Question 1 (10) Single screen with information about a the 2020 Olympics
Create an application using PyQt. The user must enter the name of an Olympic sport and a single character (e.g ‘a’). The application must read the name of the sport and count the number of occurrences of the character in the sport name. The count should be case-insensitive. Thus, if ‘c’ is entered as the character then both capital letter ‘C’ and small letter ‘c’ in the string should be counted. The count must be displayed. The application interface must include at least a label, an edit and a button. You are welcome to enhance your application with comments and messages.

Answer 1

Souce Code below:-

import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *

@pyqtSlot()
def count_val():
    gamest = game.text() //gets the text from the lineedit box
    cha = charchtername.text()
    j = 0
    for i in gamest:
        if i == cha:
            j = j + 1 //for each charachter which is equal to the specified character, 1 is added to j.
    count.setText(str(j)) //str(j) will convert the j as a string.

app = QApplication(sys.argv)
win = QWidget()

label1 = QLabel("Enter the sport name:")
game = QLineEdit()

label2 = QLabel("Enter the character:")
charchtername = QLineEdit()

count = QLineEdit()

fb = QFormLayout()
fb.addRow(label1, game)
fb.addRow(label2, charchtername)
fb.addRow(count)

btn = QPushButton("Count")
fb.addRow(btn)
btn.clicked.connect(count_val) //the count_val function will be executed now
win.setLayout(fb)

win.setWindowTitle("test")
win.show()
sys.exit(app.exec_())

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