calculator.py

import sys
import typing
from PyQt5 import QtCore, QtWidgets
from PyQt5.QtWidgets import QApplication,QMainWindow, QWidget

class MainForm(QMainWindow):
    def __init__(self):
        super(MainForm, self).__init__()

        self.setWindowTitle("Calculator")
        self.setGeometry(200,200,500,500)
        self.initUI()
    
    def initUI(self): # form üzerine gelecek kontrolleri yapacağımız metod
        self.lbl_sayi1=QtWidgets.QLabel(self)
        self.lbl_sayi1.setText("1. Sayı: ")
        self.lbl_sayi1.move(50,30)

        self.txt_sayi1=QtWidgets.QLineEdit(self)
        self.txt_sayi1.move(150,30)
        self.txt_sayi1.resize(200,32)

        self.lbl_sayi2=QtWidgets.QLabel(self)
        self.lbl_sayi2.setText("2. Sayı: ")
        self.lbl_sayi2.move(50,80)

        self.txt_sayi2=QtWidgets.QLineEdit(self)
        self.txt_sayi2.move(150,80)
        self.txt_sayi2.resize(200,32)

        self.btn_topla=QtWidgets.QPushButton(self)
        self.btn_topla.setText("Toplama")
        self.btn_topla.move(150,130)
        self.btn_topla.clicked.connect(self.hesapla)

        self.btn_cikar=QtWidgets.QPushButton(self)
        self.btn_cikar.setText("Çıkarma")
        self.btn_cikar.move(150,170)
        self.btn_cikar.clicked.connect(self.hesapla)

        self.btn_carp=QtWidgets.QPushButton(self)
        self.btn_carp.setText("Çarpma")
        self.btn_carp.move(150,210)
        self.btn_carp.clicked.connect(self.hesapla)

        self.btn_bol=QtWidgets.QPushButton(self)
        self.btn_bol.setText("Bölme")
        self.btn_bol.move(150,250)
        self.btn_bol.clicked.connect(self.hesapla)

        self.lbl_sonuc=QtWidgets.QLabel(self)
        self.lbl_sonuc.setText("Sonuç: ")
        self.lbl_sonuc.move(50,290)

    def hesapla(self):
        sender=self.sender().text() # hangi butondan tıklıyorsak o butonun referansını sender içerisine alıyoruz.

        if sender == "Toplama":
            result=int(self.txt_sayi1.text())+int(self.txt_sayi2.text())
        elif sender == "Çıkarma":
            result=int(self.txt_sayi1.text())-int(self.txt_sayi2.text())
        elif sender == "Çarpma":
            result=int(self.txt_sayi1.text())*int(self.txt_sayi2.text())
        elif sender == "Bölme":
            result=int(self.txt_sayi1.text())/int(self.txt_sayi2.text())
           
        self.lbl_sonuc.setText("Sonuç: "+str(result))



def app():
    app=QApplication(sys.argv)
    win=MainForm()
    win.show()
    sys.exit(app.exec_())


app()