AttributeError: Problem z podpięciem logiki do buttona -GUI PyQt5

Question

Cześć drodzy pasjonaci.

Stworzyłem sobie widok takiego prostego kalkulatora za pomocą PyQt5 w edytorze QTDesigner. Kod został wygenerowany, ja natomiast jeszcze z widoku edytora ponazywałem sobie obiekty, tak by łatwo móc je identyfikować przy podpinaniu logiki. Niestety z tym podpinaniem nie idzie.

Stworzyłem prosta metodę close_it(self) na zamykanie programu i chce ją podpiąć do buttonu Quit  za pomocą wyrażeń: quit_B.clicked.connect(self.close_it)

jest to 16 i 94 linia poniższego kodu.

Aplikacja uruchamia się ale po naciśnięciu klawisza Quit wyskakuje error: AttributeError: 'Ui_MainWindow' object has no attribute 'close'

PS. Dodam że błędu nie generuje nieprawidłowa ilosć spacji, bo juz to sprawdzałem w różnych edytorach i wpisywałem tą funkcję w różnych miejscach kodu.

from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5 import *
import sys

class Ui_MainWindow(object):

    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(510, 170)
        MainWindow.setMinimumSize(QtCore.QSize(510, 170))
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.quit_B = QtWidgets.QPushButton(self.centralwidget)
        self.quit_B.setGeometry(QtCore.QRect(10, 110, 491, 31))
        self.quit_B.setObjectName("quit_B")
        self.quit_B.clicked.connect(self.close_it)

        self.add_B = QtWidgets.QPushButton(self.centralwidget)
        self.add_B.setGeometry(QtCore.QRect(10, 60, 91, 41))
        self.add_B.setObjectName("add_B")
        self.sub_B = QtWidgets.QPushButton(self.centralwidget)
        self.sub_B.setGeometry(QtCore.QRect(110, 60, 91, 41))
        self.sub_B.setObjectName("sub_B")
        self.multip_B = QtWidgets.QPushButton(self.centralwidget)
        self.multip_B.setGeometry(QtCore.QRect(210, 60, 91, 41))
        self.multip_B.setObjectName("multip_B")
        self.div_B = QtWidgets.QPushButton(self.centralwidget)
        self.div_B.setGeometry(QtCore.QRect(310, 60, 91, 41))
        self.div_B.setObjectName("div_B")
        self.mod_B = QtWidgets.QPushButton(self.centralwidget)
        self.mod_B.setGeometry(QtCore.QRect(410, 60, 91, 41))
        self.mod_B.setObjectName("mod_B")
        self.num1_field = QtWidgets.QLineEdit(self.centralwidget)
        self.num1_field.setGeometry(QtCore.QRect(10, 30, 151, 21))
        self.num1_field.setObjectName("num1_field")
        self.num2_field = QtWidgets.QLineEdit(self.centralwidget)
        self.num2_field.setGeometry(QtCore.QRect(180, 30, 151, 21))
        self.num2_field.setObjectName("num2_field")
        self.result_field = QtWidgets.QLineEdit(self.centralwidget)
        self.result_field.setToolTip('Wpisz <b>liczby</b> i wybierz działanie...')
        self.result_field.readonly = True
        self.result_field.setGeometry(QtCore.QRect(350, 30, 151, 21))
        self.result_field.setObjectName("result_field")
        self.num1_txt = QtWidgets.QLabel(self.centralwidget)
        self.num1_txt.setGeometry(QtCore.QRect(10, 10, 121, 21))
        self.num1_txt.setObjectName("num1_txt")
        self.num2_txt = QtWidgets.QLabel(self.centralwidget)
        self.num2_txt.setGeometry(QtCore.QRect(180, 10, 121, 21))
        self.num2_txt.setObjectName("num2_txt")
        self.result_txt = QtWidgets.QLabel(self.centralwidget)
        self.result_txt.setGeometry(QtCore.QRect(350, 10, 121, 21))
        self.result_txt.setObjectName("result_txt")
        MainWindow.setCentralWidget(self.centralwidget)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
        MainWindow.setTabOrder(self.num1_field, self.num2_field)
        MainWindow.setTabOrder(self.num2_field, self.result_field)
        MainWindow.setTabOrder(self.result_field, self.add_B)
        MainWindow.setTabOrder(self.add_B, self.sub_B)
        MainWindow.setTabOrder(self.sub_B, self.multip_B)
        MainWindow.setTabOrder(self.multip_B, self.div_B)
        MainWindow.setTabOrder(self.div_B, self.mod_B)
        MainWindow.setTabOrder(self.mod_B, self.quit_B)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Simple Calculator"))
        self.quit_B.setText(_translate("MainWindow", "Quit"))
        self.add_B.setText(_translate("MainWindow", "Add"))
        self.sub_B.setText(_translate("MainWindow", "Subtract"))
        self.multip_B.setText(_translate("MainWindow", "Multiply"))
        self.div_B.setText(_translate("MainWindow", "Divide"))
        self.mod_B.setText(_translate("MainWindow", "Modulo"))
        self.num1_txt.setText(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:10pt; color:#cf0000;\">Number 1:</span></p></body></html>"))
        self.num2_txt.setText(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:10pt; color:#0000ad;\">Number 2:</span></p></body></html>"))
        self.result_txt.setText(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:10pt; color:#007e00;\">Result :</span></p></body></html>"))

    def close_it(self):
        self.close()

if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

Answer 1

Myślałeś może nad takim rozwiązaniem:

from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5 import *
import sys
 
class Ui_MainWindow(object):
 
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(510, 170)
        MainWindow.setMinimumSize(QtCore.QSize(510, 170))
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.quit_B = QtWidgets.QPushButton(self.centralwidget)
        self.quit_B.setGeometry(QtCore.QRect(10, 110, 491, 31))
        self.quit_B.setObjectName("quit_B")
        self.quit_B.clicked.connect(self.close_it)
        self.add_B = QtWidgets.QPushButton(self.centralwidget)
        self.add_B.setGeometry(QtCore.QRect(10, 60, 91, 41))
        self.add_B.setObjectName("add_B")
        self.sub_B = QtWidgets.QPushButton(self.centralwidget)
        self.sub_B.setGeometry(QtCore.QRect(110, 60, 91, 41))
        self.sub_B.setObjectName("sub_B")
        self.multip_B = QtWidgets.QPushButton(self.centralwidget)
        self.multip_B.setGeometry(QtCore.QRect(210, 60, 91, 41))
        self.multip_B.setObjectName("multip_B")
        self.div_B = QtWidgets.QPushButton(self.centralwidget)
        self.div_B.setGeometry(QtCore.QRect(310, 60, 91, 41))
        self.div_B.setObjectName("div_B")
        self.mod_B = QtWidgets.QPushButton(self.centralwidget)
        self.mod_B.setGeometry(QtCore.QRect(410, 60, 91, 41))
        self.mod_B.setObjectName("mod_B")
        self.num1_field = QtWidgets.QLineEdit(self.centralwidget)
        self.num1_field.setGeometry(QtCore.QRect(10, 30, 151, 21))
        self.num1_field.setObjectName("num1_field")
        self.num2_field = QtWidgets.QLineEdit(self.centralwidget)
        self.num2_field.setGeometry(QtCore.QRect(180, 30, 151, 21))
        self.num2_field.setObjectName("num2_field")
        self.result_field = QtWidgets.QLineEdit(self.centralwidget)
        self.result_field.setToolTip('Wpisz <b>liczby</b> i wybierz działanie...')
        self.result_field.readonly = True
        self.result_field.setGeometry(QtCore.QRect(350, 30, 151, 21))
        self.result_field.setObjectName("result_field")
        self.num1_txt = QtWidgets.QLabel(self.centralwidget)
        self.num1_txt.setGeometry(QtCore.QRect(10, 10, 121, 21))
        self.num1_txt.setObjectName("num1_txt")
        self.num2_txt = QtWidgets.QLabel(self.centralwidget)
        self.num2_txt.setGeometry(QtCore.QRect(180, 10, 121, 21))
        self.num2_txt.setObjectName("num2_txt")
        self.result_txt = QtWidgets.QLabel(self.centralwidget)
        self.result_txt.setGeometry(QtCore.QRect(350, 10, 121, 21))
        self.result_txt.setObjectName("result_txt")
        MainWindow.setCentralWidget(self.centralwidget)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
 
        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
        MainWindow.setTabOrder(self.num1_field, self.num2_field)
        MainWindow.setTabOrder(self.num2_field, self.result_field)
        MainWindow.setTabOrder(self.result_field, self.add_B)
        MainWindow.setTabOrder(self.add_B, self.sub_B)
        MainWindow.setTabOrder(self.sub_B, self.multip_B)
        MainWindow.setTabOrder(self.multip_B, self.div_B)
        MainWindow.setTabOrder(self.div_B, self.mod_B)
        MainWindow.setTabOrder(self.mod_B, self.quit_B)
 
    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Simple Calculator"))
        self.quit_B.setText(_translate("MainWindow", "Quit"))
        self.add_B.setText(_translate("MainWindow", "Add"))
        self.sub_B.setText(_translate("MainWindow", "Subtract"))
        self.multip_B.setText(_translate("MainWindow", "Multiply"))
        self.div_B.setText(_translate("MainWindow", "Divide"))
        self.mod_B.setText(_translate("MainWindow", "Modulo"))
        self.num1_txt.setText(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:10pt; color:#cf0000;\">Number 1:</span></p></body></html>"))
        self.num2_txt.setText(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:10pt; color:#0000ad;\">Number 2:</span></p></body></html>"))
        self.result_txt.setText(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:10pt; color:#007e00;\">Result :</span></p></body></html>"))
 
    def close_it(self):
        sys.exit(1)
 
if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

Zmiana w funkcji close_it

Mam nadzieję, że pomogłem :-)

Comments

Działa bardzo dziękuje.

Ale dlaczego to dział i co ten AttributeError znaczy ?

Czy jak teraz będę pisał metody na odpowiednio dzielenie, mnożenie, dodawania do buttonow to ten error nie będzie się pojawiał ?

Answer 2

Jeszcze jedno o co prosiłeś. Taki prosty przykład z dodawaniem:

from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5 import *
import sys
 
class Ui_MainWindow(object):
 
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(510, 170)
        MainWindow.setMinimumSize(QtCore.QSize(510, 170))
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.quit_B = QtWidgets.QPushButton(self.centralwidget)
        self.quit_B.setGeometry(QtCore.QRect(10, 110, 491, 31))
        self.quit_B.setObjectName("quit_B")
        self.quit_B.clicked.connect(self.close_it)
        self.add_B = QtWidgets.QPushButton(self.centralwidget)
        self.add_B.setGeometry(QtCore.QRect(10, 60, 91, 41))
        self.add_B.setObjectName("add_B")
        self.add_B.clicked.connect(self.add_2)
        self.sub_B = QtWidgets.QPushButton(self.centralwidget)
        self.sub_B.setGeometry(QtCore.QRect(110, 60, 91, 41))
        self.sub_B.setObjectName("sub_B")
        self.multip_B = QtWidgets.QPushButton(self.centralwidget)
        self.multip_B.setGeometry(QtCore.QRect(210, 60, 91, 41))
        self.multip_B.setObjectName("multip_B")
        self.div_B = QtWidgets.QPushButton(self.centralwidget)
        self.div_B.setGeometry(QtCore.QRect(310, 60, 91, 41))
        self.div_B.setObjectName("div_B")
        self.mod_B = QtWidgets.QPushButton(self.centralwidget)
        self.mod_B.setGeometry(QtCore.QRect(410, 60, 91, 41))
        self.mod_B.setObjectName("mod_B")
        self.num1_field = QtWidgets.QLineEdit(self.centralwidget)
        self.num1_field.setGeometry(QtCore.QRect(10, 30, 151, 21))
        self.num1_field.setObjectName("num1_field")
        self.num2_field = QtWidgets.QLineEdit(self.centralwidget)
        self.num2_field.setGeometry(QtCore.QRect(180, 30, 151, 21))
        self.num2_field.setObjectName("num2_field")
        self.result_field = QtWidgets.QLineEdit(self.centralwidget)
        self.result_field.setToolTip('Wpisz <b>liczby</b> i wybierz działanie...')
        self.result_field.readonly = True
        self.result_field.setGeometry(QtCore.QRect(350, 30, 151, 21))
        self.result_field.setObjectName("result_field")
        self.num1_txt = QtWidgets.QLabel(self.centralwidget)
        self.num1_txt.setGeometry(QtCore.QRect(10, 10, 121, 21))
        self.num1_txt.setObjectName("num1_txt")
        self.num2_txt = QtWidgets.QLabel(self.centralwidget)
        self.num2_txt.setGeometry(QtCore.QRect(180, 10, 121, 21))
        self.num2_txt.setObjectName("num2_txt")
        self.result_txt = QtWidgets.QLabel(self.centralwidget)
        self.result_txt.setGeometry(QtCore.QRect(350, 10, 121, 21))
        self.result_txt.setObjectName("result_txt")
        MainWindow.setCentralWidget(self.centralwidget)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
 
        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
        MainWindow.setTabOrder(self.num1_field, self.num2_field)
        MainWindow.setTabOrder(self.num2_field, self.result_field)
        MainWindow.setTabOrder(self.result_field, self.add_B)
        MainWindow.setTabOrder(self.add_B, self.sub_B)
        MainWindow.setTabOrder(self.sub_B, self.multip_B)
        MainWindow.setTabOrder(self.multip_B, self.div_B)
        MainWindow.setTabOrder(self.div_B, self.mod_B)
        MainWindow.setTabOrder(self.mod_B, self.quit_B)
 
    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Simple Calculator"))
        self.quit_B.setText(_translate("MainWindow", "Quit"))
        self.add_B.setText(_translate("MainWindow", "Add"))
        self.sub_B.setText(_translate("MainWindow", "Subtract"))
        self.multip_B.setText(_translate("MainWindow", "Multiply"))
        self.div_B.setText(_translate("MainWindow", "Divide"))
        self.mod_B.setText(_translate("MainWindow", "Modulo"))
        self.num1_txt.setText(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:10pt; color:#cf0000;\">Number 1:</span></p></body></html>"))
        self.num2_txt.setText(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:10pt; color:#0000ad;\">Number 2:</span></p></body></html>"))
        self.result_txt.setText(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:10pt; color:#007e00;\">Result :</span></p></body></html>"))
 
    def close_it(self):
        sys.exit(1)

    def add_2(self):
        first = int(self.num1_field.text())
        second = int(self.num2_field.text())
        self.result_field.setText(str(first + second))

if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

 

Mr Root

Comments

@Mr Root - dziękuje za twoje zaangażowanie. Program napisałęm troche w inny sposób.

No i właśnie o ten sposob tutaj sie rozchodzi. Jak nadać w pythonie coś takiego jak źródło sygnału albo sender, gdzie program rozpozna o jaki button chodzi przy klikaniu. Brzmi to moze enigmatycznie ale postaram sie wyjasnic w przykładzie:

Początkowo logike pod swoje buttony napisałem tak:

def logic(self):
    n1 = float(self.num1_field.text())
    n2 = float(self.num2_field.text())
    score = ""

    if self.add_B.click:
        score = n1 + n2
    elif self.sub_B.click:
        score = n1 - n2
    elif self.multip_B.click:
        score = n1 + n2
    elif self.add_B.click:
        score = n1 * n2
    elif self.div_B.click:
        score = n1 / n2
    elif self.modulo_B.click:
        score = n1 % n2

    self.result_field.setText(str(score))

i oczywiście standardowo podpinka metody pod każdy button typu:

self.add_B.clicked.connect(self.logic)

Niestety to nie działa, bo program wykrywa tylko dodawanie albo jakies dziwne rzeczy sie dzieją.

Więc wyseparowalem te metody - co dziala - ale napeewno nie jest rozwiazaniem zgodnym ze sztuka:

    def addmition(self):
        n1 = float(self.num1_field.text())
        n2 = float(self.num2_field.text())
        score = ""
        if self.add_B.click:
            score = n1 + n2
        self.result_field.setText(str(score))

    def subtraction(self):
        n1 = float(self.num1_field.text())
        n2 = float(self.num2_field.text())
        score = ""
        if self.sub_B.click:
            score = n1 - n2
        self.result_field.setText(str(score))

    def multiplication(self):
        n1 = float(self.num1_field.text())
        n2 = float(self.num2_field.text())
        score = ""
        if self.multip_B.click:
            score = n1 * n2
        self.result_field.setText(str(score))

    def division(self):
        n1 = float(self.num1_field.text())
        n2 = float(self.num2_field.text())
        score = ""
        if self.div_B.click:
            score = n1 / n2
        self.result_field.setText(str(score))

    def modulo(self):
        n1 = float(self.num1_field.text())
        n2 = float(self.num2_field.text())
        score = ""
        if self.mod_B.click:
            score = n1 % n2
        self.result_field.setText(str(score))

i oczywiscie podpinam metode pod button.

Czy istnieje lepszy sposob zeby to zawrzec tylko w 1 metodzie ?

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Samo wypluwanie wyniku w jednej metodzie to nie problem.

	def calculate(self, operation):
		first = int(self.num1_field.text())
		second = int(self.num2_field.text())
		if operation == 1:
			self.result_field.setText(str(first + second))
		elif operation == 2:
			self.result_field.setText(str(first - second))
		elif operation == 3:
			self.result_field.setText(str(first * second))
		elif operation == 4:
			self.result_field.setText(str(first / second))
		elif operation == 5:
			self.result_field.setText(str(first % second))

Kłopot w tym, że ciężko jest przekazać argumenty do funkcji bezpośrednio "z przycisku"

Można próbować rozbić to na kilka metod i do wyświetlania wyniku zostawić jedną ale zakładam, że nie o to Ci chodzi.

---

Chodzi mi o to ze w internecie znalazłem taki kod:

    def dzialanie(self):

        nadawca = self.sender()

        try:
            liczba1 = float(self.liczba1Edt.text())
            liczba2 = float(self.liczba2Edt.text())
            wynik = ""

            if nadawca.text() == "&Dodaj":
                wynik = liczba1 + liczba2
            else:
                pass

            self.wynikEdt.setText(str(wynik))

if nadawca.text() == "&Dodaj":
                wynik = liczba1 + liczba2
            elif nadawca.text() == "&Odejmij":
                wynik = liczba1 - liczba2
            elif nadawca.text() == "&Mnóż":
                wynik = liczba1 * liczba2
            else:  # dzielenie
                try:
                    wynik = round(liczba1 / liczba2, 9)
                except ZeroDivisionError:
                    QMessageBox.critical(
                        self, "Błąd", "Nie można dzielić przez zero!")
                    return

i tu autor pisze tak jak ja na początku z tym if / elif - tyle ze nadaje ( jak tłumaczy) jakieś rozpoznawanie sygnału za pomocą tej funkcji self.sender() - a jak ja tego używam, chcąc zrobić takie same porównania na ifach jak on ( czyli text z batona) to wyskakuje błąd ten co w tytule tematu : AttributeError. dityczący funkcji self.sender()

Ja to troche robie inaczej, bo używam QT designer ale ogolnie się wzorowałem na tym projekcie:

https://python101.readthedocs.io/pl/latest/pyqt/kalkulator/