import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import QFont


class Okno(QMainWindow):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("ZOO")
        self.label = QLabel('ZOO ALI', self)
        self.label.setGeometry(80, 0, 50, 10)
        self.label.setFont(QFont('Verdana'))

        self.labelKoty = QLabel('Ile kotow', self)
        self.labelKoty.setGeometry(0, 20, 70, 30)
        self.txtKoty = QTextEdit(self)
        self.txtKoty.setGeometry(100, 20, 70, 30)

        self.labelKanarki = QLabel('Ile kanarkow', self)
        self.labelKanarki.setGeometry(0, 50, 70, 30)
        self.txtKanarki = QTextEdit(self)
        self.txtKanarki.setGeometry(100, 50, 70, 30)

        self.labelRybki = QLabel('Ile rybek', self)
        self.labelRybki.setGeometry(0, 80, 70, 30)
        self.txtRybki = QTextEdit(self)
        self.txtRybki.setGeometry(100, 80, 70, 30)

        self.labelNogi = QLabel('Liczba nog: 0', self)
        self.labelNogi.setGeometry(0, 120, 70, 30)
        self.labelOgony = QLabel('Liczba ogonow: 0', self)
        self.labelOgony.setGeometry(0, 150, 100, 30)

        self.btn1 = QPushButton("Oblicz", self)
        self.btn1.setGeometry(200, 55, 50, 20)

        self.btn1.clicked.connect(self.buttonOblicz)

        self.show()

    def buttonOblicz(self):
        liczbaNog = int(self.txtKoty.toPlainText()) * 4 + int(self.txtKanarki.toPlainText()) * 2
        liczbaOgonow = int(self.txtKoty.toPlainText()) + int(self.txtKanarki.toPlainText()) + int(self.txtRybki.toPlainText())

        self.labelNogi.setText('Liczba nog: ' + str(liczbaNog))
        self.labelOgony.setText('Liczba ogonow: ' + str(liczbaOgonow))


def main():
    app = QApplication(sys.argv)

    widget = Okno()
    widget.resize(250, 300)

    app.exit(app.exec_())


if __name__ == '__main__':
    main()