app.py 文件源码

def debug_app(app):
    """Add the debug toolbar extension to the application."""
    app.jinja_env.undefined = jinja2.StrictUndefined

    try:
        import flask_debugtoolbar
    except ImportError:
        flask_debugtoolbar = None
    else:
        app.config['SECRET_KEY'] = 'debug-secret-key'
        flask_debugtoolbar.DebugToolbarExtension(app)