How to switch tab under PyQt5

alexisparenty

Hi,
I am migrating from PyQt4 to PyQt5 and have corrected most of my code apart from one method which is no longer working:
I need to switch tabs in my app and the foolowing method used to work under PyQt4:
QTabWidget.setCurrentIndex(self.tabWidget, 0) # to open the first tab
QTabWidget.setCurrentIndex(self.tabWidget, 1) # to open the second tab

I could not make it workunder PyQt5… What is the correct syntax under PyQt5?
Thanks

SGaist

Why aren't you calling self.tabs.setCurrentIndex(1) ?

on_click_select_tab2 implementation doesn't really make sense. You seem to try to call a method from a class and pass it an object and a parameter. setCurrentIndex is not a static method, it's an object method.

SGaist

Hi and welcome to devnet,

You should share the code you are using.

alexisparenty

Hi,
here is the code I am using:

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import time

class App(QMainWindow):
def init(self):
super().init()
self.title = "Hello PyQt5 users"
self.left = 10
self.top = 10
self.width = 640
self.height = 400
self.initUI()

def initUI(self):
    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(QWidget, self).init(parent)
self.layout = QVBoxLayout(self)

    self.tabs = QTabWidget()
    self.tab1 = QWidget()
    self.tab2 = QWidget()
    self.tabs.resize(300,200)
    self.tabs.addTab(self.tab1, "Tab 1")
    self.tabs.addTab(self.tab2, "Tab 2")

    self.tab1.layout = QVBoxLayout(self)
    self.pushButton1 = QPushButton("Press here to open Tab 2")
    self.tab1.layout.addWidget(self.pushButton1)
    self.tab1.setLayout(self.tab1.layout)

    self.layout.addWidget(self.tabs)
    self.setLayout(self.layout)

    self.pushButton1.clicked.connect(self.on_click_select_tab2)

def on_click_select_tab2(self):
    QtWidgets.QTabWidget.setCurrentIndex(self.tabs, 1)

if name == 'main':
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())

The tab 2 never gets selected and the windows shutdown with the message "Process finished with exit code 3"

Thanks

SGaist

Why aren't you calling self.tabs.setCurrentIndex(1) ?

on_click_select_tab2 implementation doesn't really make sense. You seem to try to call a method from a class and pass it an object and a parameter. setCurrentIndex is not a static method, it's an object method.

alexisparenty

@SGaist

Hello SGaist, thanks a lot for your explanation. It works great!