Web Browser Example#

The example demonstrates the power and simplicity offered by Qt for Python to developers. It uses several PySide6 submodules to offer a fluid and modern-looking UI that is apt for a web browser. The application offers the following features:

  • Tab-based browsing experience using QTabWidget.

  • Download manager using a QProgressBar and QWebEngineDownloadItem.

  • Bookmark manager using QTreeView.


The application’s code is organized in several parts for ease of maintenance. For example, DownloadWidget provides a widget to track progress of a download item. In the following sections, these different parts are discussed briefly to help you understand the Python code behind them a little better.

BookmarkWidget or bookmarkwidget.py#

This widget docks to the left of the main window by default. It inherits QTreeView and loads a default set of bookmarks using a QStandardItemModel. The model is populated at startup from a JSON file, which is updated when you add or remove bookmarks from the tree view.

DownloadWidget or downloadwidget.py#

The widget tracks progress of the download item. It inherits QProgressBar to display progress of the QWebEngineDownloadItem instance, and offers a context-menu with actions such as Launch, Show in folder, Cancel, and Remove.

BrowserTabWidget or browsertabwidget.py#

The widget includes a QWebEngineView to enable viewing web content. It docks to the right of BookmarkWidget in the main window.

MainWindow or main.py#

This is the parent window that collates all the other widgets together to offer the complete package.

Try running the example to explore it further.