A cookie associated with a cross-site resource at <URL> was set without the `SameSite` attribute. A future release of Chrome will only deliver cookies with cross-site requests if they are set with code example

Example 1: The session is unavailable because no secret key was set. Set the secret_key on the application to something unique and secret.

if __name__ == "__main__":
    app.secret_key = 'super secret key'
    app.config['SESSION_TYPE'] = 'filesystem'

    sess.init_app(app)

    app.debug = True
    app.run()

Example 2: "http://" looks like a URL. Beautiful Soup is not an HTTP client. You should probably use an HTTP client like requests to get the document behind the URL, and feed that document to Beautiful Soup. markup

import warnings
warnings.filterwarnings("ignore", category=UserWarning, module='bs4')