app.py

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QToolBar, QAction, QLineEdit, QVBoxLayout, QWidget
from PyQt5.QtWebEngineWidgets import QWebEngineView
from PyQt5.QtCore import QUrl
from PyQt5.QtGui import QIcon

class Browser(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Simple Browser")
        self.setGeometry(100, 100, 1200, 800)

        # Create web view
        self.web_view = QWebEngineView()
        self.web_view.setUrl(QUrl("https://www.google.com"))
        
        # Create central widget and layout
        central_widget = QWidget()
        self.setCentralWidget(central_widget)
        layout = QVBoxLayout(central_widget)
        layout.addWidget(self.web_view)

        # Create toolbar
        toolbar = QToolBar()
        self.addToolBar(toolbar)

        # Back button
        back_btn = QAction("Back", self)
        back_btn.setStatusTip("Go back")
        back_btn.triggered.connect(self.web_view.back)
        toolbar.addAction(back_btn)

        # Forward button
        forward_btn = QAction("Forward", self)
        forward_btn.setStatusTip("Go forward")
        forward_btn.triggered.connect(self.web_view.forward)
        toolbar.addAction(forward_btn)

        # Refresh button
        refresh_btn = QAction("Refresh", self)
        refresh_btn.setStatusTip("Refresh page")
        refresh_btn.triggered.connect(self.web_view.reload)
        toolbar.addAction(refresh_btn)

        # URL bar
        self.url_bar = QLineEdit()
        self.url_bar.setPlaceholderText("Enter URL")
        self.url_bar.returnPressed.connect(self.navigate_to_url)
        toolbar.addWidget(self.url_bar)

        # Update URL bar when page changes
        self.web_view.urlChanged.connect(self.update_url_bar)

        # Show status bar
        self.statusBar()

    def navigate_to_url(self):
        url = self.url_bar.text()
        if not url.startswith("http"):
            url = "http://" + url
        self.web_view.setUrl(QUrl(url))

    def update_url_bar(self, qurl):
        self.url_bar.setText(qurl.toString())

if __name__ == "__main__":
    app = QApplication(sys.argv)
    browser = Browser()
    browser.show()
    sys.exit(app.exec_())