tabsExample.py

import sys
from PyQt5.QtWidgets import QMainWindow, QApplication, QPushButton, QWidget, QAction, QTabWidget,QVBoxLayout
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import pyqtSlot
 
class App(QMainWindow):
 
    def __init__(self):
        super().__init__()
        self.title = 'PyQt5 tabs - pythonspot.com'
        self.left = 60
        self.top = 60
        self.width = 1300
        self.height = 800
        self.setWindowTitle(self.title)
        self.setGeometry(self.left, self.top, self.width, self.height)
 
        self.table_widget = MyTableWidget(self)
        self.setCentralWidget(self.table_widget)
 
        self.show()
 
class MyTableWidget(QWidget):        
 
    def __init__(self, parent):   
        super().__init__(parent)
        self.layout = QVBoxLayout(self)
 
        # Initialize tab screen
        self.tabs = QTabWidget()
        self.tab1 = QWidget()	
        self.tab2 = QWidget()
        self.tabs.resize(300,200) 
 
        # Add tabs
        self.tabs.addTab(self.tab1,"Tab 1")
        self.tabs.addTab(self.tab2,"Tab 2")
 
        # Create first tab
        self.tab1.layout = QVBoxLayout(self)
        self.pushButton1 = QPushButton("PyQt5 button")
        self.pushButton1.clicked.connect(self.on_click)
        self.tab1.layout.addWidget(self.pushButton1)
        self.tab1.setLayout(self.tab1.layout)
 
        # Add tabs to widget        
        self.layout.addWidget(self.tabs)
        self.setLayout(self.layout)
 
    @pyqtSlot()
    def on_click(self):
        print("\n")
        for currentQTableWidgetItem in self.tableWidget.selectedItems():
            print(currentQTableWidgetItem.row(), currentQTableWidgetItem.column(), currentQTableWidgetItem.text())
 
if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = App()
    sys.exit(app.exec_())