PyQt multiple buttons print same value

Question

I'm having three buttons on a form, what I expect for example is when I click the 5% button it prints 5%. But for some reason for all buttons it print's 60%.

And I really don't understand why?

My code is below.

class ThirdWindow(QWidget, Ui_Form3):
    def __init__(self):
        super(ThirdWindow, self).__init__()
        self.dbu = DatabaseHandling.DatabaseUtility()
        self.msl = None

        # Show UI on screen + resize window
        self.setupUi(self)
        self.picIndicator.setPixmap(QPixmap("M:\QtProjects\\Resources\\138691.png"))
        self.setFixedSize(350, 480)

        #  Define what should happen on button click
        self.btnQuit.clicked.connect(lambda: self.close())
        self.btnSixtyPercent.clicked.connect(lambda: self.check_clicked())
        self.btnTenPercent.clicked.connect(lambda: self.check_clicked())
        self.btnFivePercent.clicked.connect(lambda: self.check_clicked())


    #  TODO: Create a window that ask's for the spot it's specific color
    '''def indication(self):
        d = DialogOne()
        d.exec_()'''

    def check_clicked(self):
        if self.btnSixtyPercent.text() == "60":
            print("60%")
        elif self.btnFivePercent.text() == "5":
            print("5%")
        elif self.btnTenPercent.text() == "10":
            print("10%")

eyllanesc · Accepted Answer · 2017-03-27 16:12:10Z

1

When you connect the signals to the slot, it executes when the signal is generated, if you want to work with the object that emits the signal you can use the sender().It is not necessary to use lambda functions.

    self.btnQuit.clicked.connect(self.close)
    self.btnSixtyPercent.clicked.connect(self.check_clicked)
    self.btnTenPercent.clicked.connect(self.check_clicked)
    self.btnFivePercent.clicked.connect(self.check_clicked)


def check_clicked(self):
        print("{}%".format(self.sender().text()

Complete code:

class ThirdWindow(QWidget, Ui_Form3):
    def __init__(self):
        super(ThirdWindow, self).__init__()
        self.dbu = DatabaseHandling.DatabaseUtility()
        self.msl = None

        # Show UI on screen + resize window
        self.setupUi(self)
        self.picIndicator.setPixmap(QPixmap("M:\QtProjects\\Resources\\138691.png"))
        self.setFixedSize(350, 480)

        #  Define what should happen on button click
        self.btnQuit.clicked.connect(self.close)
        self.btnSixtyPercent.clicked.connect(self.check_clicked)
        self.btnTenPercent.clicked.connect(self.check_clicked)
        self.btnFivePercent.clicked.connect(self.check_clicked)


    #  TODO: Create a window that ask's for the spot it's specific color
    '''def indication(self):
        d = DialogOne()
        d.exec_()'''

    def check_clicked(self):
        print("{}%".format(self.sender().text()))

answered Mar 27, 2017 at 16:12

eyllanesc

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10 Comments

stickfigure4 Over a year ago

is the following possible?: If I remove the button text, and want to check which button is pressed using isChecked can you show me a quick example of that?

eyllanesc Over a year ago

Of course it is possible since in sender() you will have the object, in that case the QCheckBox, and you can use its functions. On the other hand I think that my answer answered your doubt, if so I did it please mark it as correct.

eyllanesc Over a year ago

For this case we must use the signal stateChanged, that can give us information of the button.

stickfigure4 Over a year ago

Can you add an example using my code? I would appreciate that a lot! :)

eyllanesc Over a year ago

btnSixtyPercent, btnTenPercent, btnFivePercent are QCheckBoxs?

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