Impossible to connect slots in TabWidget

AdamF42

Hi, I'm trying to develop a simple application with a MainWindows containing a TabWidget made with three pages. In one of them i setted up some buttons but I'm not able to trigger the slot functions.

// main.py
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import (QApplication, QWidget, QMainWindow, QTabWidget)
from Views.PagesImplementation import ClassifyPageUIClass, MainWindowUIClass
import sys


if __name__ == "__main__":
    app = QApplication(sys.argv)

    ClassifyPage = QWidget()
    ui = ClassifyPageUIClass()
    ui.setupUi(ClassifyPage)

    tabsSubPage = QTabWidget()
    tabsSubPage.addTab(ClassifyPage, QIcon("zoom.png"), "Classify")

    MainWindow = QMainWindow()
    ui = MainWindowUIClass()
    ui.setupUi(MainWindow)
    MainWindow.setCentralWidget(tabsSubPage)
    MainWindow.show()

    sys.exit(app.exec_())

//ClassifyPage (generated from QtDesigner)
from PyQt5 import QtCore, QtWidgets
from PyQt5.QtCore import QObject, pyqtSlot


class Ui_ClassifyPage(QObject):
    def setupUi(self, ClassifyPage):
        ClassifyPage.setObjectName("ClassifyPage")
        ClassifyPage.resize(500, 480)
        self.widget = QtWidgets.QWidget(ClassifyPage)
        self.widget.setGeometry(QtCore.QRect(40, 21, 436, 391))
        self.widget.setObjectName("widget")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.widget)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setObjectName("verticalLayout")
        self.getFileGroupBox = QtWidgets.QGroupBox(self.widget)
        self.getFileGroupBox.setObjectName("getFileGroupBox")
        self.gridLayout = QtWidgets.QGridLayout(self.getFileGroupBox)
        self.gridLayout.setObjectName("gridLayout")
        self.horizontalLayout = QtWidgets.QHBoxLayout()
        self.horizontalLayout.setObjectName("horizontalLayout")
        self.listView = QtWidgets.QListView(self.getFileGroupBox)
        self.listView.setObjectName("listView")
        self.horizontalLayout.addWidget(self.listView)
        self.browsePushbutton = QtWidgets.QPushButton(self.getFileGroupBox)
        self.browsePushbutton.setEnabled(True)
        self.browsePushbutton.setObjectName("browsePushbutton")
        self.horizontalLayout.addWidget(self.browsePushbutton, 0, QtCore.Qt.AlignRight|QtCore.Qt.AlignTop)
        self.gridLayout.addLayout(self.horizontalLayout, 0, 0, 1, 1)
        self.verticalLayout.addWidget(self.getFileGroupBox)
        spacerItem = QtWidgets.QSpacerItem(448, 118, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
        self.verticalLayout.addItem(spacerItem)
        self.horizontalLayout_2 = QtWidgets.QHBoxLayout()
        self.horizontalLayout_2.setSpacing(10)
        self.horizontalLayout_2.setObjectName("horizontalLayout_2")
        self.cancelPushButton = QtWidgets.QPushButton(self.widget)
        self.cancelPushButton.setObjectName("cancelPushButton")
        self.horizontalLayout_2.addWidget(self.cancelPushButton)
        spacerItem1 = QtWidgets.QSpacerItem(193, 27, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
        self.horizontalLayout_2.addItem(spacerItem1)
        self.classifyPushButton = QtWidgets.QPushButton(self.widget)
        self.classifyPushButton.setObjectName("classifyPushButton")
        self.horizontalLayout_2.addWidget(self.classifyPushButton)
        self.verticalLayout.addLayout(self.horizontalLayout_2)

        self.retranslateUi(ClassifyPage)
        self.browsePushbutton.clicked.connect(self.pickDatasetSlot)
        self.classifyPushButton.clicked.connect(self.classifySlot)
        self.cancelPushButton.clicked.connect(self.cancelSlot)
        QtCore.QMetaObject.connectSlotsByName(ClassifyPage)

    def retranslateUi(self, ClassifyPage):
        _translate = QtCore.QCoreApplication.translate
        ClassifyPage.setWindowTitle(_translate("ClassifyPage", "Form"))
        self.getFileGroupBox.setTitle(_translate("ClassifyPage", "Select a file or folder to classify"))
        self.browsePushbutton.setText(_translate("ClassifyPage", "Browse"))
        self.cancelPushButton.setText(_translate("ClassifyPage", "Cancel"))
        self.classifyPushButton.setText(_translate("ClassifyPage", "Classify"))

    @pyqtSlot( )
    def pickDatasetSlot(self):
        pass

    @pyqtSlot( )
    def classifySlot(self):
        pass

    @pyqtSlot( )
    def cancelSlot(self):
        pass

// ClassifyPageClass
class ClassifyPageUIClass(Ui_ClassifyPage):
    def __init__(self):
        '''Initialize the super class
        '''
        super().__init__()

    def setupUi(self, MW):
        ''' Setup the UI of the super class, and add here code
        that relates to the way we want our UI to operate.
        '''
        super().setupUi(MW)

    def pickDatasetSlot(self):
        print("dataset")

    def classifySlot(self):
        print("classify")

    def cancelSlot(self):
        print("cancel")

By running just the ClassifyPageClass instance the slots works simply well. What am I doing wrong?

consumererik

I dont think you need to use @pyqtSlot decorator.
At least I never do.

AdamF42

I found out the error and I feel so stupid. I used the same name (ui) for two variables in

    ClassifyPage = QWidget()
    ui = ClassifyPageUIClass()
    ui.setupUi(ClassifyPage)

and

    MainWindow = QMainWindow()
    ui = MainWindowUIClass()
    ui.setupUi(MainWindow)

so the the slots connects of my QTabWidget were overwrighted.