PyQt5 – QTabWidget

In this article, you will learn how to add and work with a tab window in your PyQt5 application. Each tab has a different layout and page under a selected tab is displayed, while keeping the others hidden. To select a tab, you need to click the desired tab from the tab bar which is provided by this QTabWidget.

The below article describes the process of creating a sample application that has three tabs and each tab has a different layout.
Example:

import sys
from PyQt5.QtWidgets import QMainWindow, QApplication, QPushButton, QWidget, QAction, QTabWidget, QVBoxLayout, QLabel

# Creating the main window
class App(QMainWindow):
    def __init__(self):
        super().__init__()
        self.title = 'PyQt5 - QTabWidget'
        self.left = 0
        self.top = 0
        self.width = 300
        self.height = 200
        self.setWindowTitle(self.title)
        self.setGeometry(self.left, self.top, self.width, self.height)

        self.tab_widget = MyTabWidget(self)
        self.setCentralWidget(self.tab_widget)

        self.show()

# Creating tab widgets
class MyTabWidget(QWidget):
    def __init__(self, parent):
        super(QWidget, self).__init__(parent)
        self.layout = QVBoxLayout(self)

        # Initialize tab screen
        self.tabs = QTabWidget()
        self.tab1 = QWidget()
        self.tab2 = QWidget()
        self.tab3 = QWidget()
        self.tabs.resize(300, 200)

        # Add tabs
        self.tabs.addTab(self.tab1, "Geeks")
        self.tabs.addTab(self.tab2, "For")
        self.tabs.addTab(self.tab3, "Geeks")

        # Create first tab
        self.tab1.layout = QVBoxLayout(self)
        self.l = QLabel()
        self.l.setText("This is the first tab")
        self.tab1.layout.addWidget(self.l)
        self.tab1.setLayout(self.tab1.layout)

        # Add tabs to widget
        self.layout.addWidget(self.tabs)
        self.setLayout(self.layout)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = App()
    sys.exit(app.exec_())

Output:

If you want to add an icon on any tab. You just need to replace

self.tabs.addTab(self.tab1, "Geeks")

with

self.tabs.addTab(self.tab1, QIcon("Location of the icon"), ('Geeks')) 

and import the QIcon library from PyQt5.QtWidgets.