Subscribe and unsubscribe to pywebview events.

import webview

def on_closed():
    print('pywebview window is closed')

def on_closing():
    print('pywebview window is closing')

def on_shown():
    print('pywebview window shown')

def on_loaded():
    print('DOM is ready')

    # unsubscribe event listener[0].loaded -= on_loaded[0].load_url('')

if __name__ == '__main__':
    # Create a standard webview window
    window = webview.create_window('Simple browser', '')
    window.closed += on_closed
    window.closing += on_closing
    window.shown += on_shown
    window.loaded += on_loaded