def start_flask_app()

in doc/code/targets/playwright_target.py [0:0]

• 18 lines of code
• 7 McCabe index (conditional complexity)

def start_flask_app():
    # Get the notebook's directory
    notebook_dir = os.getcwd()

    # Construct the path to app.py relative to the notebook directory
    app_path = os.path.join(notebook_dir, "playwright_demo", "app.py")

    # Ensure that app.py exists
    if not os.path.isfile(app_path):
        raise FileNotFoundError(f"Cannot find app.py at {app_path}")

        # Start the Flask app
    print(f"Starting Flask app from {app_path}...")
    flask_process = subprocess.Popen([sys.executable, app_path], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)

    # Wait for the app to start by checking if the server is up
    server_url = "http://127.0.0.1:5000"
    server_ready = False
    while not server_ready:
        try:
            response = urlopen(server_url)
            if response.status == 200:
                server_ready = True
        except URLError:
            time.sleep(0.5)  # Wait a bit before checking again
    print("Flask app is running and ready!")
    return flask_process